Lose internet access when connected

Describe the bug I set up Outline Server on a Ubuntu 20.04 cloud server and can successfully connect to it using the Outline Client from my Ubuntu 20.04 laptop, but once the Outline Client is connected, I have no web access from the Ubuntu laptop.

By disconnecting Outline I can again access the web from my laptop, and can access the server console over ssh, and successfully traceroute twitter.com etc, so the server does have web access. After disconnecting Outline Client, Firefox on my laptop has trouble waking up on some domains, so I am submitting this using a different browser.

With Outline connected, route -n gives:

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.0.85.2       0.0.0.0         UG    10     0        0 outline-tun0
10.0.85.0       0.0.0.0         255.255.255.0   U     0      0        0 outline-tun0
xx.xx.xx.xx  192.168.43.1    255.255.255.255 UGH   5      0        0 wlp2s0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlp2s0
192.168.43.0    0.0.0.0         255.255.255.0   U     600    0        0 wlp2s0

Where xx.xx.xx.xx is the IP of my cloud server.

With Outline disconnected, route -n gives:

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.43.1    0.0.0.0         UG    0      0        0 wlp2s0
10.0.85.0       0.0.0.0         255.255.255.0   U     0      0        0 outline-tun0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlp2s0
192.168.43.0    0.0.0.0         255.255.255.0   U     600    0        0 wlp2s0

I recently tried setting up Wireguard on a cloud server and had the same problem, so this may be due to something local although I have since done a clean install of Ubuntu 20.04 on my laptop.

I wonder then if the issue is because I’m connecting via a mobile hotspot.

It isn’t a firewall issue because I have the firewall turned off on both client and server: ufw status # shows ‘inactive’ on both.

Desktop (please complete the following information):

• OS: Ubuntu 20.04
• Browser Firefox or Chromium
• Latest versions

[Rayrsn]

This bug still hasn’t been fixed in 2022

[sepsoh]

for fix it 1 - sudo ip link set outline-tun0 down (outline-tun0 may be different check ip addr ) 2 - sudo dhclient -r eth0 (eth0 is your internet interface and may be differ check ip addr) 3 - sudo dhclient eth0 now your internet is connected (and you can start outline again) 4 - sudo ip link set outline-tun0 up