Proxmox freezing after a few hours

Hi everyone,

About a year ago, my Proxmox VE 7 instance started freezing regularly without any clear cause, and I’ve been unable to resolve the issue despite extensive troubleshooting.

The Problem​

When the system freezes, the following happens:

• The hypervisor and all VMs become unreachable from the network.
• If a GPU is connected, the virtual console freezes, and the TTY’s blinking cursor stops.
• The machine becomes completely unresponsive, requiring a hard reset.

...

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