CandleSir

I am not sure if this is the "best practices" method, but I had this exact same error with log spam and setting pcie_aspm=off fixed it for me. On the Main page, click on your boot device ("Internal Boot" or "Boot(Flash)", etc), then under the Boot Parameters tab in the Power Management section you can set that with a toggle. Then just reboot.

On custom networks like br0.X, the container gets its own IP so these mappings are not recognized. Think about it like using Host networking. Try routing using the "container ports".