Can't reach certain websites

So, my issue is pretty simple. This started after I switched ISP. I can’t reach archlinux.org, and also their wiki and forums (connection timeout). Everything else works just fine, it’s only archlinux site. Also, important mention is that on the same network, my android phone can browse archlinux without any problems. (So, this is probably problem with my PC or/and network configuration on my PC)
My PC is connected with ethernet cable.
inxi output (network part)

Network:
Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
driver: r8169
IF: enp3s0 state: up speed: 1000 Mbps duplex: full

I already did a lot of research, and really can’t do anything, that what brought me here.
What I’ve done:

1) Switched different DNS servers (didn’t work)
2) Turned off ipv6 (didn’t work)
3) Tweaked all kind of settings in NetworkManager Applet (didn’t work)
4) sysctl net.ipv4.tcp_timestamps=0 (didn’t work)
5) Reseting the router (didn’t work)

Some output:
tracepath archlinux.org

1?: [LOCALHOST] pmtu 1500
1: _gateway 0.326ms
1: _gateway 0.232ms
2: 100.64.0.1 4.356ms
3: no reply
4: no reply (and so on)

Also, ping archlinux.org works fine.

archlinux.org ping statistics —
6 packets transmitted, 6 received, 0% packet loss, time 5007ms

netstat -pnt shows that a lot of SYN_SENT, but none SYN_ACK (i dont really know what it means, but after some research I tried disabling net.ipv4.tcp_timestamps)

I cant really find out what’s wrong, hope someone can help me find out. Maybe the solution is easy and I’m being silly.

Might be silly but maybe try with a different browser?

try with a different browser

Oh, forgot to mention. I tried lynx and links before (it didn’t work). After your post I installed chromium and the issue still the same. So, yeah. Probably configuration issues, which I still can’t find

Ok, figured that would be worth checking off the list :slight_smile:

Are you by any chance having issues updating? Are your time and date settings set up correctly?

Time and date settings are correct., and no issues with updating. It’s really only about reaching archlinux.org (maybe there is more, but I still didn’t find out)

Very odd. Gut still tells me this is DNS related. You said your tried different DNS servers, what did you try/are you using now?

Perhaps a silly question: your pc does not have something like adguard or other software which has this/these site(s) blacklisted?

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Have you tried a different user account or even a VM?

VM shouldn’t work, but I remember another post less than a week ago where a VM worked for a possibly similar issue, but wouldn’t work for the host.

Little more than a week: Unable to stream videos in any browser - #5 by Maleavour
And it was an audio issue. Still strange that the VM worked, but not the host.

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DNS servers

My ISP set 77.88.8.8. I tried google DNS and 1.1.1.1 (didn’t work)

software which has this/these site(s) blacklisted

Nope. Nothing. Most network-related software shipped with default EndeavourOS installation.

Have you tried a different user account or even a VM

Ubuntu 24.04 on VM. Same issue. Probably because VM adopt hypervisor net config? (sorry if this isn’t correct)

I’m out of ideas, I’m afraid. Sorry. :pensive:

That’s what I expected, but was worth a shot considering the post I linked to.

What about a different user login account? Have you tried that?

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can you post the output of timedatectl status?

Time zone: Europe/Moscow (MSK, +0300)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no

different user login account

Tried just now. It didn’t work.
It’s really frustrating, I have this problem like for a week and this is such pain in the ass.
Surprisingly enough, it works on my phone with the same network.

Based off of that tracepath output It seems like it’s a deeper network issue. It hits your router and then drops off the next hop. Since it doesn’t seem to be DNS, it’s going to be a bit harder to diagnose. Do you have a firewall or are you able to check the logs from your router to see if there’s any data on what’s going on?

As for your phone, I wonder if you turn off your data and just run off the wifi if you see similar results.(if you’re not already doing that)

You definitely have a weird issue going on :confused:

Yo bro! :call_me_hand:t6:

Most definitely it’s your censorship ministry of crap!
They’ve broken the internet in Russia on multiple occasions already, blocking youtube, social media, even ECH and stuff, turns out it ain’t cheap on internet infrastructure, as far as i’ve read on hacker forums…

So use some strong anti-censorship VPN / Tor, until they block it too or something.
:crossed_fingers:t6:

2 Likes

how does archlinux.org qualify as enemy of state?

[I understand this is completely unanswerable question as my fingers type it anyways…]
sure do miss that Clown :clown_face: 'round here

ps–good research here

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BRO, who knew, you can’t block half of internet, especially stuff like google cache servers and ECH, without consequences of breaking some other random stuff, which they don’t care about!
:fist:t6:
Or some KGB boyz jsut plain don’t like Arch Linux!!!
Maybe they’re fans of Ubuntu or some sheeeit! :boom:

Dat checker checker site reports them boyz like Ubuntu more :man_facepalming:t6:
https://www.comparitech.com/privacy-security-tools/blockedinrussia/

You mean dat :clown_face: My views towards swear words - #16 by litrixxxus HAHAH?!
Bro…absolute legend, even for random lurkers like myself, sure as sheeit he’d inject some laughing stock of :clown_face: :earth_africa: emojies in here by now as well as some pro-freedom rants!!
It ain’t fun here without them :clown_face: and grumpy :frog:, dat’s for sure.

PEACE! :call_me_hand:t6:

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God, there is a lot of discussion happens out here…

After checking software-part, I guess it’s time to check hardware issues.
I guess, I know what happened. After I switched to new ISP, my network infrastructure was like that:

ISP Router → Other router → my PC (via ethernet cable)

And I’ve probably made something stupid, when I’ve done this:

ISP Router → my PC (directly via ethernet cable)

So, I’ll try:

ISP router → switch → my PC

Or return to:

ISP Router → Other router → my PC (via ethernet cable)

I also directly connected my iptv-box to ISP router (?that’s why some channels don’t work?).

If this works out, I’ll close the theme as solved.
Also, can someone explain how directly connecting to ISP router can brake some connections (if it can)?