Error when backing up and entering the VNC console

Mar 11, 2020
Hello everyone, I hope you are very well and can help me, I happen to have a version of PVE 6.0-4 and recently I have experienced strange behavior on my VMs.

I noticed this in the backup task, because it began to throw an error "got timeout", this only happened with a couple of VMs, but over time the problem was replicated in more Vms, and were no longer only two, but began to be 3 and then 4. so it happened with many Vms randomly.

Investigating further I realized that these same VMs, gave an error when trying to enter the console option, displaying a message "Failed to connect to server", when viewing the log in the task option appears this

VM 104 qmp command 'change' failed - got timeout
TASK ERROR: Failed to run vncproxy.

While for the backup task it shows this
NFO: include disk 'virtio0' 'local-lvm:vm-203-disk-0' 500G
INFO: backup mode: snapshot
INFO: ionice priority: 7
INFO: creating archive '/mnt/pve/pbs01/dump/vzdump/vzdump-qemu-203-2022_12_04-17_33_46.vma.lzo'
ERROR: got timeout
INFO: aborting backup job
ERROR: VM 203 qmp command 'backup-cancel' failed - got timeout
ERROR: Backup of VM 203 failed - got timeout

It seems that both problems are related to each other, but I can't figure out why it happens and how to fix it. Previously a restart of the VM seemed to work but it is not an option at this time.


  • Captura de pantalla de 2022-12-05 14-53-31.png
    Captura de pantalla de 2022-12-05 14-53-31.png
    12.5 KB · Views: 1
  • Captura de pantalla de 2022-12-05 14-53-16.png
    Captura de pantalla de 2022-12-05 14-53-16.png
    25.6 KB · Views: 1


The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!