Something is wrong with ISPs in India 🇮🇳

[@UdayBhatia]

This is a very common thing on when Jio is the ISP in my small scale testing They like to block stuff without any rhyme or reason, this is one of the reasons why I always have vps active in azure central india location with ovpn and kasm active so that I can either connect via vpn or ssh or use kasm to launch a private browser instance and do the shit I was trying to do. azure has their own dedicated link from pune to undersea cables, this also has the benefit of being able to get around "govt censorship" as claimed by Jio on movie streaming websites, which are enforced only by Jio for some reason(same websites via airtel are accessable)

[@Redditard]

Exactly. My university uses Jio as their broadband provider and with University restrictions (which can be bypassed using GoodByeDPI), and Jio on top. Is a very shitty experience.

[@shubhamsehgal2336]

this same thing is happening with me in Airtel 😂

[@code4js]

which language u are speaking in

[@UdayBhatia]

@@code4js english

[@iliketurtles9719]

brother explain how to do what you do cause what you typed goes above many brains 😭

[@DebdutBiswasOnline]

Check TCP MTU and MSS. Noticed a similar issue connecting to Akamai CDN through some of the large ISPs. Somewhere there is a BGP router or CGNAT router in between having TCP MSS and MTU not configured correctly on the outgoing / incoming network interface, that misconfigured router is not reassembling fragmented TCP packets while leaving it to the next router. Also CDN nowadays puts some sort of packet scrubbing to mitigate TCP reply and fragmentation attacks.

[@siddhantchavan1370]

I am too getting into networks. How do you get into the details without pivoting towards network engineer role. I am a backend software dev but I want to delve into the depths of routing

[@nou4605]

​​@@siddhantchavan1370Start with Hussain Nassers Networking course on Udemy. It gave me lots of insights

[@nid274]

it will effect multiple people...this is so far only specific to one user

[@DebdutBiswasOnline]

​@@siddhantchavan1370I tinkered with some opensource firewalls and Linux routing while setting up my very own network and kubernetes cluster at my home lab. I was curious from my childhood to know the nuts and bolts of the internet ecosystem. So now I have my own network with an Autonomous System, Public IPs and I am a member of RIPE. I started my own experimental research network with my AS203145 and now I expanded it from the cloud to my home.

[@DebdutBiswasOnline]

​​@@siddhantchavan1370knowing some of the networking stuff and os stuff (socket programming, IPCs, etc.) really helps backend developers to write code for large scalable systems. By profession I am a developer too but I always have this kind of tinkering hobby aside.

[@palpankajpal]

Indian Telecom companies block Cloudflare Warp+ from accessing Cloudflare servers to create a tunnel in India, which makes using ISPs like Jio or Airtel a pretty bad experience. With Jio I would usually get Singapore co-location. Then on the other hand Excitel gets me a Co-location in Delhi for Warp+ with almost no difference in speed.

[@nirbhaykumarchaubey8777]

What is Excitel? And how do you still use warp+? I had a few hundreds of GBs in WARP+ but now it shows no data

[@nirbhaykumarchaubey8777]

Mine always either gets connected to Singapore or Mumbai

[@tions706]

​@@nirbhaykumarchaubey8777 Excitel is internet service provider in delhi .

[@Tetroner]

Excitel is also an ISP with fiber connection

[@gag_singh]

In my experience the only way around this is to use a different DNS host or vpn unless their ISP or Cloudflare changes the upstream providers.

[@SandeepSindham]

same as you, I'm also unsure about the problem but even my ISP had issues 2 days back and got it resolved after few hours. I'm from Gujarat basically.

[@cyrixsauron]

Same happens to me in Gujarat when I'm trying to access Google Photos in my browser for some reason. It's something particular with the Gujarat ISP maybe

[@chizuru1999]

I feel like there's some issue in Gujarat probably cause I also had few sites down and very slow response in opening sites.

[@suryansh3760]

maybe Fiber optic cable tapping 😂

[@xanaxity]

Likely Cloudflare DDoS protection from abuse from that ISP's ip range. Reason why those pages loaded is because of cache this user had, maybe?

[@RahulSomasundaramssrahul96]

i also observed an similar issue in chennai on Wednesday with BSNL Fiber, it was resolved after 3-4 hours

[@irfanrizvi6983]

I am guessing the ISP user is using is Jio, I experienced that its routing are messed up.

[@kavinisanthav2252]

For ISP I recommend having two different connections. I understand that getting two fiber connections might not be possible for small scale but having at least a second connection dedicated to the server. Considering that ISP fiber connection provides 90% uptime average in india so having a second low cost setup will be helpful and a Different ISP means a different routing network which will be helpful in these situations.

[@kavinisanthav2252]

A simple restarting all the network stuff will be helpful for resetting network route to best connectivity(I had faced similar problems in the past and this was the simplest thing I personally doing for better connectivity)

[@nightowl0492]

1. Have you told him to reset their router setting , may be there is some rules and routing set by him or someone 2. Have he tried on different devices or different pc/laptop. 3. He can also see if there is custom dns set by him or their is default dns may be try to change it to some other dns services. 4. (If not sure about the connection and pc setting ) I would route my wifi through mobile acting as repeater having both wifi and hotspot on,mobile wifi is connected to router and pc to mobile hospot. Just to check flakkyness of the connection settings.

[@xtan-io]

The User registration info is not hard coded to the router, if we reset we won't get a network unless we login with some credentials.

[@xtan-io]

watch the full video bro, he covered everything you've mentioned.

[@nightowl0492]

@@xtan-io I have seen whole video, and I am not that free to just write random thing. It personally happended to my user, He added certain rules and script on router to block ad and trackers.

[@bemole]

@@xtan-io There is a thing called TR069 , it auto configs the router with the users info if you reset it.

[@roguesecurity]

Since the user was able to access the same website using different internet medium, it is most likely MTU issue. Try changing the interface's (e.g eth0) MTU to values like 1300, 1250, 1200 or lower and play with different values.

[@user8921]

damn bro thnx a lot for covering this , ive been affected by same.

[@user8921]

also this issue doesn't exist on BSNL ☠️

[@user8921]

you can also ask the user to check the cf server location by asking him to go learn.coders..../cdn-cgi/trace also if you use warp+ then speeds aren't affected it's some heavy messup with Airtel, Jio routing

[@ghanayadav6749]

The best troubleshooting should be done is connect him with his mobile network which has different ISP because ISP routers uses BGP protocol to connect to the hops and different isp use different types of QOS mechanism to priotize the traffic, If you look clearly your html and css images are loading fast but when it comes to video it sucks but they are having different QOS mechanisms.

[@parthbhardwaj4279]

I also have this issue, I used to cloudflare regularly before but now the internet speed of my device is significantly slower when use cloudfare. Thats why I left cloudflare.

[@parthbhardwaj4279]

By cloudflare, I mean cloudflare warp vpn.

[@Axel.Blazer]

@@parthbhardwaj4279 hey but what is the usecase of this cloudflare vpn in your case..as in using unreachable websites or anonymity or something else entirely ?

[@mr.lastchance]

what's your isp?

[@parthbhardwaj4279]

@mr.lastchance Airtel fibre

[@sokh1590]

​@@parthbhardwaj4279vpn is a different case

[@dsd2918]

Indian ISPs are more after money and the local ISPs are more frustrating.

[@sourabhshukla8625]

Had similar kinds of issues multiple times some of our website users not able to play videos from Vimeo cdn . I think it also affects Google sign-in for some people

[@aniketdhamale1547]

If it's a local isp then that should be the problem IMO. Coz I have experienced like this with Google meet while attending a class. In my case same was happening after switching to mobile data the issue was not happening. It happens with specific website or service.

[@danishnazirpeer3422]

Some ISPs have firewalls that cause problems like this. I'll give you an example, I live in Kashmir and here Jio has a firewall in place, it works good for the most part but if i open slack, I'm not able to join meetings sometimes or sometimes media doesn't load. Sometimes even the API's that I'm testing keep failing. But when I switch to my other wifi connection by BSNL, everything works flawlessly.

[@hsc1322]

I sometimes face this issue where instagram(and some other sites) slow down randomly which gets fixed by changing the DNS servers

[@sreemannarayanaikkurthi5872]

ISP issue definitely. I had similar issue where Netflix and some parts of Amazon websites (prime, aws) were not loading but everything else is working fine. Contacting my wifi provider resolved it, they took my router and changed some internal id and it started working fine.

[@SevenHeavenlyig]

Your knowledge and problem solving skills are amazing dawg

[@mr.forest]

Most discord pfp doesn't show up when I'm using my Wi-Fi. I use nextDNS now and it fixes the issue.

[@nanu_gn]

it's probably somehow ISP problem. whenever i update my system threw via my Jio 5G network it's provide 1 KB to 100 KB speed but in youtube i can watch video & stream 1080p60, when i change to Vi 4G network it's speed like 500 KB to 2 or 4 MB speed sometimes it's like 6 MB idk why ?

[@JoonShakya]

Once I had a slow connection to vercwl hosted sites Complained to my ISP They said they cleared DHCP pool and then it started working fine

[@RamkrishanYT]

I used to host my own VPN at some Mumbai based VPS and that used to solve all my routine based latency issues for me. Because the ISPs would "provide" good speed, but in reality it would have terrible routing and most sites would be extremely slow.

[@IAmOxidised7525]

going to drop JIo, its big on censorship

[@picklenickil]

It's surveillance buddy. A badly low level implementation of surveillance is causing all this 😂

[@saurabhvijayvargiya4633]

This happens on the reliance internet. Not just gigafiber but with mobile internet as well. My research also directed me towards disabling the ipv6 in cloudflare, but being a free user I could not do it.

[@kaanvidesai]

Understand ur problem this happen bcos of cloudfare as they are using automated tool to identify the optimal routing path. Reverse traffic sending towards the ISP. Many time the path choosen are not optimal and need alternate path but automated tool understand this as best path bcoz of all the parameters configured are found ok... which may not be the best. And still keep sending traffic on the wrost path.

[@prithvihd]

I would also try changing the dns to any good private dns (nextdns or cloudflare dns) , few isps use their nonsense dns resolvers which screws up routing . i would recommend that Private Dns must be enabled at both router level and device levels hope the issue gets resolved with this

[@codedamn]

DNS is likely not the issue here. DNS only does domain name to IP address conversion which happens just fine. The problem is the data transfer is very very slow which is not the responsibility of DNS

[@chinyong2662]

I second this. Similar thing in the video has happened to me as well. Switch to Cloudflare dns and it was working!

[@chinyong2662]

TLDR, before I switch to my Unbound DNS. My outlook web was working. Did some test Unbound DNS and Cloudflare DNS is resolving a different address to Microsoft cdn. Unbound is giving me an address with bad routing I guess. Some reading also point me to EDNS not being supported back then for Unbound, thus it is giving me an address with bad routes.

[@sonumondal5322]

I'm not sure about this, but this happened to me on multiple instances where switching the network works, or changing the DNS works. Incident 1: Sanity CMS dashboard kept loading Contentful homepage kept loading Resolved by changing dns Incident 2: I coded and deployed a website and assigned a custom domain (godaddy), the website was live on the domain as viewed from other networks, but not particularly my WiFi. I dug into this behaviour and back then I came to know that either WiFi routers or somewhere in the hop stream devices cache the route. The config could have changed somewhere and the cache didn't revalidate yet. It has a fixed refresh time and it works once that happens. This incident mentioned in the video closely resembles my experiences.

[@JaspreetSingh-dh9yq]

@@codedamn should try to traceroute on the affected pc and try pinging ips which could tell u that it is a dns problem or i think ur right that it might not be a dns problem, and ip while pinging that has the highest wait time is the culprit then u can investigate further

[@japanijoota6190]

when did this happen ? since about 2-3 days i am getting weird speed issues only on some domains. I am using jio fiber. And its even worse today, i am having to use warp for decent experience. Interestingly, even last year i faced such problems around this month.

[@alanbaker6837]

This is such a nice video, so much important information is presented in a easy to understand method in under 15 minutes. also thanks for showing the real problem users face everyday

[@devtrex9456]

It's JIO issue, i am also having the same issue with my app.

[@gauravsinghtangariya]

fact .. yes this is JIO issue ..

[@phoneywheeze]

i had issues with jio for GitHub as well sometimes

[@nanu_gn]

yeah i also had issue.

[@AdityaKumar-cx2vp]

I had similar problems when I used airtel as network provider, and when I used other ISPs it worked fine for me.

[@charmander2k]

Since Cloudflare has nearby servers based on locations, could it be that the Cloudflare server that people from Gujarat are using has a problem and not from Bangalore? That would explain why WARP slows down things for him.

[@Saurabh-sq8xm]

which is the app that you use for drawing and explaining?

[@lhxperimental]

I have jio fiber in Mumbai and this problem is very common. Recently it has become worse. Many sites/teams dont work as expected. I switch to Airtel hotspot and it starts working immediately. I can't even complain because the problem is intermittent so i can't reproduce the issue when the technician comes. Sometimes I switch on the VPN to bypass the issue.

[@netbavo]

The issue seems to be because of the contention at peering facilities like Internet Exchange . We were facing same issue and we also have bilateral peering with cloudflare. The problem was fixed after reporting to the Internet exchange. There was also a partial routing issue at some locations which cloudflare had published.

[@ChintanPatel]

i have same problem with my server, the issue is from ISP, it not able to serve some site or ip for few secs, it generally happens with BSNL, Airtel and GTPL (spl in gujarat). At that time speed test and youtube will be working fine.

[@tyson96]

This is a common problem with small scale ISPs I believe. For years I have been using a small ISP (available in my area, WB) and often it would be slow for some websites / apps but whenever I switched to mobile data it would be work all good. Another observation I have, if I switch connection from mobile to wifi AFTER I open the app/site it would generally behave better. Yeah definitely a trashy experience. What's the point of 80mbps data when it struggles on basic stuff.

[@ಮಮತ_onlyone]

Using quad 9 dns resolves a lot of issues lol

[@Thswebsolution]

9:58 same issue happened to me also. via my jio wifi my website not loading but same via my jio sim (mobile network) working fine

[@j2klegend]

Its probably with the ISP. Airtel is notorious to have intermittent connection issues with AWS US region endpoints. Its so difficult to convince client or even your colleagues!!

[@imerence6290]

Shouldn't traceroute help you figure out the exact server causing problem ? And maybe the IP address be used for contacting the server owner ? Not sure on the 2nd part.

[@itachi_uchiha5499]

i do also believe that there is some issue with ISP in Gujarat because i am also enable to visit VLC media player website and if i connect to my phones network then i am able to access the website.so i guess there must be some issue.

[@kandycan]

If removing cloudflare fixes it then it's definitely cloudflare problem. If route has similar or same nodes, then it could be a problem with one of those nodes. If nodes are changing, then see what node remains constant to narrow down the faulty system.

[@lokeshnegi5051]

Coder's gyan, I've been following his channel for almost 2 years now, amazing content and a really good person.

[@60mithai]

WARP has been removed from playstore and appstore, following a govn takedown request. Smells like something is cooking.

[@rohitsingh1433]

This is the reason why i switched to aws instead of using cloudflare rds. I was using jio and spent the whole day debugging code, only to discover that using a vpn solved my problem. Then i switched to aws even though it might be more expensive. No hiccups from there.

[@pratikanand143]

My API server was also slow 2 days back in Delhi region with airtel network (broadband and cellular). It was behind cloudflare on contabo.

[@akshit.singla]

Do you have only one client using this ISP? (Local ISP maybe?) Could also be a wifi router problem at the user's home... Also...Sometimes I experience these issues on public wifi spots (not in India yet) which block certain IP ranges or naked IP communication in general.

[@janujoshi]

I am from Gujarat, we are using on premise hosted Application (Web and Mobile). As per the observation mainly the Jio Users are facing this issue. Rest all users can access the application with proper speed.

[@OmPatel1211]

If he's using Airtel wifi then yeah, there are some issues I had a call with the customer care and they said the network will be resolved shortly. It's been almost 2 weeks and not resolved yet

[@R_Y_Z_E_N]

Maybe some issues related to routing tables the traffic is not being routed properly when using a particular connection .

[@vedantmali05]

What whiteboard app are you using in this application?

[@catalyst9259]

This is not a new thing, as a mobile dev at the last startup I was the CTO, firebase would fail in a similar way too my solving for those users were to use Mobile data instead of Wifi

[@R0CKYBAHI]

ask him to try cloudflare dns manually and use 0 to minimum security or firewall settings on router

[@sheshankjoshi]

I see significant drop in speed with cloudfare warp enabled.

[@vishwamdhavale3801]

What if a router, or any router in the network, doesn't have proper location info or has a misconfiguration (like a corrupted routing table)? Could that cause these issues? Not entirely sure, just an observation from my side. 🤔

[@prathameshdukare]

Whats the tool you;re using to monitor realtime intenet connection ? Im talking about what i saw in the mac menubar.

[@RPGaming97]

I faced the same issue with my ISP, I have been battling with them for almost an year and I just gave up, the moment I connect to cloudflare warp, the speed just goes down to < 1Mbps. (I do not have a solution and neither the ISP).

[@mahirahmad2430]

I am jio user But my Twitter doesn't load from both app and website and it's so frustrating😡😡😡😡😡

[@ishpreetsingh9621]

Go to router settings and disable NAT and if the person is using any kind of router extension disable the dhcp server in the extended router and on the pc you can enable UPnp for if you do not want to disable NAT for the whole wifi This may fix the problem

[@anindachakrabarty2397]

Just tell him to use VPN that is hosted in India(CloudFlare excluded). It will fix the routing issue

[@giftbrightson4826]

I'm facing a strange issue to: during a Dockerfile build, one of the npm ci commands fails. However, if I log into the container and run the same command manually, it works. Interestingly, it also works fine when using a different ISP. I've spent hours trying to figure out why it's failing and where the issue lies.

[@ぜん-l6p]

Airtel user here, same stuff happens when playing online games too, to avoid this I route my my connection from mumbai using exitlag.

[@tatvagna23]

hey man from my experience and some of the comments ,this is an issue related to location but specially jio , other isps work good ,did the client also have jiofiber?

[@vipinpg]

Now a days isp enable QoS by default 😂 I disabled it and every streaming issue resolved

[@gauthamvijayan]

Random question: What is the flowchart tool mehul is using?

[@umaryaqoob3953]

You didn't specify the isp of for the users wifi and mobile Hotspot

[@shiningstarzzz432]

It might be a DNS issue configuration in the router. If he/she can changes the DNS in his/her router, It may solve the problem.

[@ipramodjodhani]

I have encountered this problem several times. Would be good to know the resolution for this.

[@kushalguptaR15]

Hi mehul, I am a network engineer in an ISP in Uttar Pradesh, Do let me know if you need any explanation why this request is behaving like this.

[@ShubhamSingh-du9yt]

same happening for one platform some particular video only did not resolved based on mumbai

[@GamingXYT]

experiencing similar, user might be on Jio's network stream, coz am on Jio and facing similar issue with cloudflare servers, facing packet loss like 30% on the routing to cloudflare, changing dns isn't working, only using VPN works. Websites doesn't load or doesn't load after opening. Contacting either provider to change routing or informing cloudflare about the routing will only work. The issue usually starts appearing at peak hours.

[@lalithhakari6166]

Thanks for sharing ❤

[@rtsharma15]

Yeap felt same... Im on Jio Fiber, most of time Ai apps takes so long to load.

[@testRPA-g3f]

Peering issue from IXP/PNI or fully utilized NLD link

[@kamleshpaul414]

ISP issue i also faced with jio in pune it keep cancel my SSH connection with anyserver then i use wrap it work or when i move different city it worked

[@paxamsingh-6701]

facing same kind of issue everything working fine but twitter and discord s*** some time

[@ಮಮತ_onlyone]

Because of govt

[@modassirmanchester112]

Tell ur ISP to put there server ip rather than cloudflare ip

[@fullstack_journey]

A high availability DNS system pointing to another nameserver like Route 53 could be a solution.

[@monish05m]

This blocking and arbitrary routing is the reason i have my own dns caching and resolver running on a Raspberry Pi

[@ArindamGhoshal]

let say you are an isp, you buy internet from airtel and you have a private interconne between you and cf. now there are four types of scenario could be possible, 1. your forward path to cf is airtel and reverse from cf to you is airtel. 2. your forward path to cf is your private interconnect, your reverse path from cf to you is your private interconnect. 3. your forward to cf is airtel and reverse cf is via your interconnect. 4. your forward to cf is your interconnect and reverse is via airtel. now the problem is we can manipulate our forward but reverse. cf use lots of automated tools to determine the best path based on various factors. in theory that choosen path may be the best but in practice that path may be congrested at that time. before blaming our isp we have to understand the scenario. maximum time it is not possible to solve this kind of problem by your isp. yes there are some problem like blocking is implemented by isp, that is very bad practice imho.

[@nilaysarma2442]

I'm also facing this issue on some websites. If I turn on my mobile data, everything works fine. idk what's the problem. But if I change the dns server, those websites start working. Please make another video if you find any solution.

[@subodhpalayekar3779]

I faced a similar problem with Slack, where I was unable to connect to the Slack desktop app and website through Wi-Fi. Changing the DNS settings on my laptop solved the issue for me

[@Akshad135]

I am also from Gujarat (near mumbai side) and have been experiencing this from 2 months on many different websites and even in few games. Speed test says my speed is very good and all but while actually using something its so bad. And this is happening exactly like your user, the games i play would will lag and have packet loss on wifi but run smoothly on mobile data although speed test shows wfii having way better speeds and latency ! I am tired to find the solution for this

[@ಮಮತ_onlyone]

You're probably getting throttled by your isp

[@Harshuqt]

does his ip got infected somehow and Cloudflare detected it , or may be he has a bad dns provider in his router end , or his routing is may be going thru different country in Cloudflare so the cloudflare is picking up the nearest cloudflare server to make a routing i am not an expert this are just my assumptions , Since i am just learning 😊

[@store9487]

inspect incoming and outgoing headers at home wifi, wireshark

[@jatinbhatodara1946]

Have you checked ipv6 configuration? Mostly jio uses ipv6 only. this happened with my servers and cloudflare LB. After reconfiguration of ipv6 on VPC subnets, router and external network. problem resolved.

[@vivekkushwaha66]

It can be a certificate issue. I have experienced similar thing 1 back year with company VPN. I use Airtel Fiber wifi and it works fine, but when connected to company's VPN, it has no internet access, and when i use my mobile hotspot everything works.

[@codedamn]

It’s a speed issue, not access issue. Websites work, just very slow

[@mdfaiyazulhussain8752]

​@@codedamnbro it's the problem of wireless Bluetooth and wifi using at the same time.

[@ajiteshmishra]

I have been facing the same error for past 2 years, it happens with jio. when I use airtel wifi or mobile internet it works fine

[@zodadarsh]

I personally think it is isp fault because in recent times i have experienced lot of this thing while using my jio fiber many websites just keep loading and takes long times to load even for playing media stuffs and there is no other way i have to connect to cloud flare wrap or some vpn to access it, i dont clearly understand what the problem is what is wrong with cloudflare or the isp

[@logicx9384]

Mere isp ne mera hi website block kar diya tha mai socha mera website down kyu ho Raha hai pahale hosting dekha sab running condition me tha phir VPS check kiya wo bhi running me tha phir samjh gaya ye mere ISP ka kand hai..

[@gauravbhel2591]

Turn of the router & then on to resolve this issue

[@amansetia8655]

i think i encountered the same issue but in my case the sites would work on mobile and if i turned on hotspot on phone with wifi, using it as a repeater, the sites would work on pc too

[@Sandeep-zd6dq]

If removing CF proxy solved the issue then how it can be an ISP problem, maybe it’s CF blocking specific IPs from specific source or something else, but looks like maybe some CF security feature turned into an issue.

[@prodigious029]

Sometimes a person with a plenty of information often miss out on simple workarounds.

[@pramolshinde457]

Might be port issue with isp User isp ---- reach to netfler router ports

[@negasonicteenagewarhead]

Yes, recently I was also having issues with npm and I had to change dns settings.