GUI timeout and logout on a cluster with 3 Proxmox nodes 9.1.6

Samadeira

New Member
Mar 13, 2026
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Hi.

I have a cluster with 3 nodes running Proxmox 9.1.6.

The problem is that the web interface now logs me out of the session every 5 minutes, on any of the nodes, and I have to re-enter my credentials to reconnect.

I can't find the cause of the problem.

So far, I've tried the following solutions without success:

1. Check the session timeout in Proxmox

  • - Edit the file /etc/pve/datacenter.cfg
  • - Add the line session-timeout: 3600
  • - Systemctl restart pveproxy

2. The nodes don't have a high load or slow storage.

3. Increase the timeout to 3600 in /etc/pve/pveproxy.cfg

4. Verify that the server time is correct.

5. Clear browser cookies

6. Reinstall Proxmox certificates.

Thanks,