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Hello,

I had a working wireguard peer on my laptop, which I didn't want anymore, so I decided to uninstall wireguard. All was well until I restarted the laptop and now I can't access the internet anymore.

I think it's because of some config left over from wireguard, but I'm not sure how to fix it.

Running pop os 22.04.

Any advice?

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[–] superkret@feddit.org 13 points 4 weeks ago (1 children)

sudo traceroute 1.1.1.1

can show you how far your connection request gets (whether it's blocked by your pc, your router, or somewhere on the internet).
You may have to install it first.

sudo find /etc -name *wg*
find ~ -name *wg*

can help find left-over config files.

[–] anytimesoon@feddit.uk 2 points 4 weeks ago

All I got was wget, so this is clean

[–] CameronDev@programming.dev 8 points 4 weeks ago (1 children)

Give the output of route, maybe there is a left over route.

[–] nanook@friendica.eskimo.com 5 points 4 weeks ago (1 children)
[–] CameronDev@programming.dev 3 points 4 weeks ago (1 children)

Yup, didn't read your comment properly, but that will also work.

[–] anytimesoon@feddit.uk 2 points 4 weeks ago (2 children)

The output was pretty much the same from this as from netstat -nr

I would share it here, but I can't access the internet from that machine

[–] nanook@friendica.eskimo.com 3 points 4 weeks ago (1 children)

@anytimesoon @CameronDev It should be as both commands do more or less the same thing, the question is your default route correct and are there any other routes that might be misdirecting your data.

[–] anytimesoon@feddit.uk 1 points 4 weeks ago (2 children)

I'm not entirely sure which of the list is the default route is, but absolutely see my WiFi router on the list. Took a picture as recommended by @CameronDev

1000005757

[–] nanook@friendica.eskimo.com 3 points 4 weeks ago (1 children)

@anytimesoon Assuming 192.168.1.1 is your wifi router, it looks correct. Can you ping that IP?

[–] anytimesoon@feddit.uk 1 points 4 weeks ago* (last edited 4 weeks ago)

~~Nope. Destination host is unreachable when pinging~~

I changed to a different router and can at least ping that now, but still no internet

[–] CameronDev@programming.dev 2 points 4 weeks ago* (last edited 4 weeks ago)

~~Take a photo of the output? First few lines are most important, but ideally all would be good. ~~

Edit: actually, dont want to crowd the kitchen, good luck!

[–] nanook@friendica.eskimo.com 4 points 4 weeks ago (1 children)

This is what mine looks like for contrast:
0.0.0.0 50.251.249.54 0.0.0.0 UG 0 0 0 bridge0
50.251.249.48 0.0.0.0 255.255.255.248 U 0 0 0 bridge0
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0

In my case, 50.251.249.54 is my gateway and .48 my broadcast. I am static routed so no NAT.

[–] nanook@friendica.eskimo.com 5 points 4 weeks ago (2 children)

Sorry formatting is whack, Friendica does not understand tabs.

[–] CameronDev@programming.dev 1 points 4 weeks ago

Looks like you need to use [code] on friendica?

https://wiki.friendi.ca/docs/bbcode#code_blocks

[–] anytimesoon@feddit.uk 1 points 4 weeks ago

So that looks similar to what I have. Wonder why it's not working

[–] nanook@friendica.eskimo.com 4 points 4 weeks ago* (last edited 4 weeks ago) (1 children)

I would look at your interface configuration and your routing, ip addr show, netstat -nr and go from there. Also might check iptables, iptables -L -n and make sure there aren't any iptable rules blocking your access.

[–] anytimesoon@feddit.uk 1 points 4 weeks ago

IP tables have no rules, but netstat is showing traces of WG. Two of the interface names are the same as WG config name I used

[–] nanook@friendica.eskimo.com 2 points 4 weeks ago (1 children)

Did you try to ping the router IP, 192.168.1.1 and see if it responded?

[–] anytimesoon@feddit.uk 2 points 4 weeks ago* (last edited 4 weeks ago) (1 children)

~~I did, but no response~~

I changed to a different router and can at least ping that now, but still no internet

[–] nanook@friendica.eskimo.com 3 points 4 weeks ago (1 children)

@anytimesoon With that different router, now try a traceroute 1.1.1.1, if you get a response from the first hop, 192.168.1.1, then something is wrong with the NAT on the router or your cable service or fiber or whatever it is, is not working.

[–] anytimesoon@feddit.uk 2 points 4 weeks ago (1 children)

Unlikely to be something wrong with that, tbh. Everything else on that network has internet access. The issue is limited to the laptop

[–] nanook@friendica.eskimo.com 2 points 4 weeks ago (1 children)

@anytimesoon I'm a bit at a loss then. I do have a Comcast router that is weird in that ARP only works at boot time so if I plug a new device into it, it won't route for that device unless I reboot it.

[–] anytimesoon@feddit.uk 1 points 4 weeks ago

No worries. Thanks for your help! I'll post here if/when I find a solution

[–] bbbhltz@beehaw.org 1 points 4 weeks ago

Hi

Did you remove wireguard the meta package or everything wireguard installed? I don't know Pop but other distros install additional tools and configs like wireguard-dkms.

Also, if possible, after completely purging every wg you could try booting into a previous kernel on your system to see if that changes anything.