[RPi4] Unstable Ethernet Connection

Bit the bullet and did a clean install of 12; everything definitely working as expected now - haven't gone backwards; it actually fixed and error notification I used to get after startup whereby the PVR-HTS addon would report an invalid response from the TVHeadend server hosted on this same device - this now connects straight away without error

The behaviour of having to reboot if you restart your router or take the Ethernet cable out is still there, you get the Input/output error I reported earlier if you try to refresh or connect - this was there in 10 and 11 so not new

Quote from Da Flex

Do you use a static IP for LE?

Yes it uses static IP from DHCP and even if I manually set the static IP address on the RPI4, so not using DHCP, it's the same; as I say this happened in 10 and 11 and I think 9 also but it's been a while since I used 9; if the router restarted or network cable is disconnected it needs a reboot - wifi is disabled I don't use it, obviously I rarely, if ever take out the network cable, it's more rebooting the router; you can't reconnect from the gui as only the connect option is available along with refresh and edit; using connect and refresh causes the error and you can do anything from the cli as the rpi4 is not reachable via the network bu I'd imagine it'd fail as well

Quote from Da Flex

So you use the same static IP on your router menu, and on RPi, right? In that case it could be a router problem, and your other network devices have the same problem.

No the static IP is reserved manually on the router DHCP Server but even if I don't do this and manually set the IP on the RPI4 using an IP outside the DHCP Server range the same thing happens i.e. rpi4 requires a reboot

If I was to reboot the router or just for a test remove the ethernet cable the RPI4 running LE12, and previous versions, the RPI4 does not refresh the network connection, whereas given the same scenario all other devices on the network do refresh their connections and are fine, I can see the other devices refresh happening within the router logs - nothing comes from RPI4 until a reboot; the RPI4 using manjaro for instance does refresh the connection