In the Proxmox Virtual Environment (PVE) 8 system, after the physical machine was unexpectedly powered off and restarted, the business address could not be connected. One could only access the background through IPMI to check. In the system network, the network card was in the “up” state, the networking service was normal, and the IP was correct. When entering the computer room to check, the network port lights were normal. After reinstalling the CentOS system on this physical machine, the business network worked normally. However, after reinstalling the PVE system again, the network connection was still abnormal.
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