LXC Container Network Issue

Hi

I have an Ubuntu LXC Container and I am trying to run apt-get update using lxc exec ubuntu -- apt-get update but I get the many time out errors like this one :

lxc exec resolved-sawfly -- apt-get update :

Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease                                                               
Ign:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease                                                      
Ign:3 http://security.ubuntu.com/ubuntu jammy-security InRelease
Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease     
Ign:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease
Ign:3 http://security.ubuntu.com/ubuntu jammy-security InRelease
Ign:1 http://archive.ubuntu.com/ubuntu jammy InRelease
Ign:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease
Ign:3 http://security.ubuntu.com/ubuntu jammy-security InRelease
Err:1 http://archive.ubuntu.com/ubuntu jammy InRelease
  Could not connect to archive.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (2620:2d:4002:1::102). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (2620:2d:4002:1::103). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (2620:2d:4002:1::101). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (185.125.190.36), connection timed out Could not connect to archive.ubuntu.com:80 (91.189.91.81), connection timed out Could not connect to archive.ubuntu.com:80 (91.189.91.82), connection timed out Could not connect to archive.ubuntu.com:80 (185.125.190.39), connection timed out Could not connect to archive.ubuntu.com:80 (91.189.91.83), connection timed out
Err:2 http://archive.ubuntu.com/ubuntu jammy-updates InRelease
  Unable to connect to archive.ubuntu.com:http:
Err:3 http://security.ubuntu.com/ubuntu jammy-security InRelease
  Could not connect to security.ubuntu.com:80 (2620:2d:4002:1::101). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (2620:2d:4002:1::102). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (2620:2d:4002:1::103). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (91.189.91.83), connection timed out Could not connect to security.ubuntu.com:80 (91.189.91.81), connection timed out Could not connect to security.ubuntu.com:80 (185.125.190.39), connection timed out Could not connect to security.ubuntu.com:80 (91.189.91.82), connection timed out Could not connect to security.ubuntu.com:80 (185.125.190.36), connection timed out
Reading package lists... Done
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy/InRelease  Could not connect to archive.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (2620:2d:4002:1::102). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (2620:2d:4002:1::103). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (2620:2d:4002:1::101). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (185.125.190.36), connection timed out Could not connect to archive.ubuntu.com:80 (91.189.91.81), connection timed out Could not connect to archive.ubuntu.com:80 (91.189.91.82), connection timed out Could not connect to archive.ubuntu.com:80 (185.125.190.39), connection timed out Could not connect to archive.ubuntu.com:80 (91.189.91.83), connection timed out
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/jammy-updates/InRelease  Unable to connect to archive.ubuntu.com:http:
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/jammy-security/InRelease  Could not connect to security.ubuntu.com:80 (2620:2d:4002:1::101). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (2620:2d:4002:1::102). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (2620:2d:4000:1::19). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (2620:2d:4002:1::103). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (2620:2d:4000:1::16). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (91.189.91.83), connection timed out Could not connect to security.ubuntu.com:80 (91.189.91.81), connection timed out Could not connect to security.ubuntu.com:80 (185.125.190.39), connection timed out Could not connect to security.ubuntu.com:80 (91.189.91.82), connection timed out Could not connect to security.ubuntu.com:80 (185.125.190.36), connection timed out
W: Some index files failed to download. They have been ignored, or old ones used instead

Container info :

Distributor ID:	Ubuntu
Description:	Ubuntu 22.04.3 LTS
Release:	22.04
Codename:	jammy

Someone told me that it is a problem to my router - I tried to be connected to different wirless routers in different places but sadly I ran into same issue
I tried even initializing different lxd configs sudo lxd init & sudo lxd init --auto - Tried both options
The way I installed lxc : sudo snap install lxd

lxc network show lxdbr0 :

config:
  ipv4.address: 10.137.59.1/24
  ipv4.nat: "true"
  ipv6.address: fd42:2f1f:66f:f512::1/64
  ipv6.nat: "true"
description: ""
name: lxdbr0
type: bridge
used_by:
- /1.0/instances/resolved-sawfly
- /1.0/profiles/default
managed: true
status: Created
locations:
- none

maybe it firewall issue?

My machine :

$ sudo ufw status
Status: inactive

I tried same command inside of my container but it says that command not found

I uninstalled docker from my machine and now my container has access to internet.