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#1 2020-04-07 13:12:06

redevined
Member
Registered: 2019-12-12
Posts: 6

[SOLVED] Some websites not working with new wifi

Hey there,

after getting a new internet provider a new router, I can't access some websites, e.g. wireless.wiki.kernel.org or youtube.com, with my Arch Linux setup.
I can't ping those sites either.

> ping youtube.com
ping: youtube.com: Name or service not known

The same sites are working just fine if accessed from any other devices, Windows/Android/etc.
If I'm in a different network, they work as well.
Browsers I've used so far are Firefox and Chromium.

Network controller seems to be installed correctly:

> lspci -k
01:00.0 Network controller: Intel Corporation Wireless-AC 9260 (rev 29)
	Subsystem: Intel Corporation Wireless-AC 9260
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi, wl

> dmesg | grep firmware
[    3.342532] iwlwifi 0000:01:00.0: loaded firmware version 46.6bf1df06.0 op_mode iwlmvm
[    3.555383] iwlwifi 0000:01:00.0: Allocated 0x00400000 bytes for firmware monitor.

> dmesg | grep cfg
[    3.243640] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    3.253395] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'

Content of /etc/hosts is:

127.0.0.1	localhost
::1		localhost
127.0.1.1	archT495.localdomain	archT495

And of /etc/resolv.conf:

> cat /etc/resolv.conf
nameserver 192.168.0.1
nameserver 2a02:8071:3e84:e400:9ec8:fcff:fe3a:5549

192.168.0.1 is the address of the router, and is accessible through my browser.
Is that a known problem? I first suspected the TCP window scaling problem https://wiki.archlinux.org/index.php/Ne … ng_problem, but the fix didn't work for me.

Thanks in advance

Last edited by redevined (2020-04-10 11:40:28)

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#2 2020-04-07 14:39:03

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,740

Re: [SOLVED] Some websites not working with new wifi

Do you have an IPv4 address?  What is the output of ip addr   ?


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Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
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#3 2020-04-08 09:04:25

redevined
Member
Registered: 2019-12-12
Posts: 6

Re: [SOLVED] Some websites not working with new wifi

I do.

> ip addr
4: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 7c:b2:7d:1f:53:6a brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.242/24 brd 192.168.0.255 scope global dynamic noprefixroute wlp1s0
       valid_lft 3566sec preferred_lft 3566sec
    inet 192.168.0.241/24 brd 192.168.0.255 scope global secondary dynamic noprefixroute wlp1s0
       valid_lft 3576sec preferred_lft 3126sec
    inet6 2a02:8071:3e84:e400:c7fa:5a2d:9dcc:47eb/64 scope global dynamic mngtmpaddr noprefixroute 
       valid_lft 172793sec preferred_lft 86393sec
    inet6 2a02:8071:3e84:e400::7621/128 scope global dynamic noprefixroute 
       valid_lft 86369sec preferred_lft 86369sec
    inet6 2a02:8071:3e84:e400:5495:9bd0:e978:b863/64 scope global dynamic noprefixroute 
       valid_lft 172799sec preferred_lft 86399sec
    inet6 fe80::962a:1faa:76b9:8041/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
    inet6 fe80::fe32:ed95:7bd3:80fb/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

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#4 2020-04-08 14:01:13

seth
Member
Registered: 2012-09-03
Posts: 50,012

Re: [SOLVED] Some websites not working with new wifi

Why do you have two IPs in the same subnet and on the same NIC?

ip r
dig working.domain.com
dig youtube.com

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#5 2020-04-10 11:39:31

redevined
Member
Registered: 2019-12-12
Posts: 6

Re: [SOLVED] Some websites not working with new wifi

> ip r
default via 192.168.0.1 dev wlp1s0 proto dhcp src 192.168.0.241 metric 304 
192.168.0.0/24 dev wlp1s0 proto dhcp scope link src 192.168.0.241 metric 304

Well funnily enough, after two days and no significant changes, I suddenly reached the sites I weren't able to before, and now I can't reproduce the original issue.

ping -c 3 youtube.com 
PING youtube.com(fra15s28-in-x0e.1e100.net (2a00:1450:4001:80b::200e)) 56 data bytes
64 bytes from fra15s28-in-x0e.1e100.net (2a00:1450:4001:80b::200e): icmp_seq=1 ttl=55 time=15.1 ms
64 bytes from fra15s28-in-x0e.1e100.net (2a00:1450:4001:80b::200e): icmp_seq=2 ttl=55 time=14.4 ms
64 bytes from fra15s28-in-x0e.1e100.net (2a00:1450:4001:80b::200e): icmp_seq=3 ttl=55 time=13.4 ms

--- youtube.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 13.352/14.279/15.053/0.702 ms

Nevertheless, thanks for the help so far, I'm marking this post as solved until I can reproduce it.

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