Console not working only with LXC container

[onetab]

console (NoVNC) is working fine with VM, but not with LXC container.

Log is :

failed waiting for client: timed out
TASK ERROR: command '/usr/bin/termproxy 5900 --path /vms/106 --perm VM.Console -- /usr/bin/dtach -A /var/run/dtach/vzctlconsole106 -r winch -z lxc-console -n 106 -e -1' failed: exit code 1


We allready tried to increase the timeout delay with the following command :
/bin/nc -l -p 5900 -w 100 -c '/usr/sbin/qm vncproxy 1301 2>/dev/null'

We've also tried to renew Let's encrypt cert just in case.

 

[Moayad]

Have you tried a different browser?

 

[onetab]

Hello Moayad,

Yes allready tried many of them from safari to Brave, by Chrome, Firefox.

Strange fact, the issue happend only when launching proxmox shell (internal) or LXC console... Other VMs are working great.