[SOLVED] Error when opening Console PVE

[adhiete]

Hi, this is my first post in here. I have an error when opening console on web gui. I only got a blank page everytime access console from GUI.
When opening container or even opening the proxmox itself.

timed out waiting for client
TASK ERROR: command '/usr/bin/termproxy 5900 --path /vms/100 --perm VM.Console -- /usr/bin/dtach -A /var/run/dtach/vzctlconsole100 -r winch -z lxc-console -n 100 -e -1' failed: exit code 4

Here's my pve version
proxmox-ve: 6.0-2 (running kernel: 5.0.21-1-pve)
pve-manager: 6.0-6 (running version: 6.0-6/c71f879f)
pve-kernel-5.0: 6.0-7 pve-kernel-helper: 6.0-7 pve-kernel-5.0.21-1-pve: 5.0.21-1
pve-kernel-5.0.18-1-pve: 5.0.18-3 pve-kernel-5.0.15-1-pve: 5.0.15-1
ceph-fuse: 12.2.11+dfsg1-2.1
corosync: 3.0.2-pve2 criu: 3.11-3
glusterfs-client: 5.5-3
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.11-pve1
libpve-access-control: 6.0-2
libpve-apiclient-perl: 3.0-2
libpve-common-perl: 6.0-4
libpve-guest-common-perl: 3.0-1
libpve-http-server-perl: 3.0-2
libpve-storage-perl: 6.0-7
libqb0: 1.0.5-1 lvm2: 2.03.02-pve3
lxc-pve: 3.1.0-64 lxcfs: 3.0.3-pve60
novnc-pve: 1.0.0-60
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.0-7
pve-cluster: 6.0-5 pve-container: 3.0-5
pve-docs: 6.0-4 pve-edk2-firmware: 2.20190614-1
pve-firewall: 4.0-7 pve-firmware: 3.0-2
pve-ha-manager: 3.0-2 pve-i18n: 2.0-2
pve-qemu-kvm: 4.0.0-5 pve-xtermjs: 3.13.2-1
qemu-server: 6.0-7 smartmontools: 7.0-pve2
spiceterm: 3.1-1 vncterm: 1.6-1
zfsutils-linux: 0.8.1-pve2

Any suggestion how to fix this? I think i can't access after update the packages.

 

[adhiete]

I solved it by myself. When i moved to Firefox with updated java 8. All fixed. Thank you.

 

[Dominic]

When i moved to Firefox with updated java 8

Did you have an older version of Firefox before or some other browser such as chrome?

I'm asking as someone reported the same problem previously.

 

[janiali]

Hello,

Seems like this is not the solution, because it was working fine with same browser same version of proxmox, but it suddenly stopped working . to me it was a reboot on the server after that this issue started.

to proxmox team it is request to try to find this issue . let me know if need any information from logs etc.

Thank you

 

[PeterRoux]

I am seeing same issues with latest firefox browser on Ubuntu 20.04. What I have noticed is that if I open a spice against one of the guests then this sometimes gets novnc working (around 50% of the time). But often only solution seems to be to reboot proxmox.

I have done the following too which was proposed as a solution:

pvecm updatecerts --force
systemctl restart pvedaemon.service
systemctl restart pveproxy.service