PVE Not reconnecting after network reset

[ashley5090]

Hi I need some help troubleshooting a very annoying issue:

After rebooting the router, proxmox does not reconnect to the network until it is power cycled.

Please let me know any suggestions, or log files I should post? Thanks.

 

[bbgeek17]

Your description of the issue is very vague. You need to try to be more specific. What troubleshooting have you already performed?
For example:
- Are you using static or dynamic IP allocation? Post your /etc/network/interfaces
- After router reboot do you still have Link UP on the interface? ip a
- After router reboot - do you have an IP? ip a
- Have you tried restarting network? systemctl restart networking

The fact that you often need to reboot your router indicates to me that it may not be of high quality, and so the issue could be in your router. Make sure its running latest firmware.

---

Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox

 

[ashley5090]

Hi, thanks for getting back to me.

I thought my crappy £30 router was the issue, but alas not since I replaced it with a model I have used previously. It seems the modem is rebooting at 00:30 on it's own, which is another issue I need to solve, but shouldn't be causing this issue with proxmox.

My Interfaces is below, but since I can't access it after the network reboots, I can't check it's connection. It certainly is not accessible via the webUI, but the ethernet port still flashes.

I have the MAC address 00:23:24:f7:42:ed set as 192.168.1.50 in the router also.

Interestingly, after 'systemctl restart networking' all my VMs lose network, but I can still access the GUI. But again I can't try that after the router reboot as I can't access the shell. Thank you.

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master vmbr0 state UP group default qlen 1000
    link/ether 00:23:24:f7:42:ed brd ff:ff:ff:ff:ff:ff
    altname enp0s31f6
3: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue state UP group default qlen 1000
    link/ether 00:23:24:f7:42:ed brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.50/24 scope global vmbr0
       valid_lft forever preferred_lft forever
    inet6 fe80::223:24ff:fef7:42ed/64 scope link
       valid_lft forever preferred_lft forever
4: tap101i0: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast master vmbr0 state UNKNOWN group default qlen 1000
    link/ether 26:98:fa:38:fd:64 brd ff:ff:ff:ff:ff:ff
5: veth102i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether fe:14:0c:d3:a5:e3 brd ff:ff:ff:ff:ff:ff link-netnsid 0
6: veth103i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether fe:12:7e:50:e6:22 brd ff:ff:ff:ff:ff:ff link-netnsid 1
7: veth104i0@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc noqueue master vmbr0 state UP group default qlen 1000
    link/ether fe:f5:9d:40:8b:9c brd ff:ff:ff:ff:ff:ff link-netnsid 2

 

[gfgjs]

https://evine.win/p/pve-install-realtek-8125-driver/
pve默认使用r8169驱动所有网卡，可能有兼容性问题。我的pve也遇到和你一样的问题，我根据上面网址教程，将r8169驱动换成我的网卡r8125的官方驱动，问题解决。