First of all, I apologize for replying to this thread in English, but given the number of messages and the high level of engagement, I believe that someone here might have a solution to this problem that I just can't figure out.
Currently, my NR7302 is set up in VLAN2 with APN2 in IP Passthrough mode and APN1 disabled. Previously, I also tried IP Passthrough with APN1 as well as the standard router mode.
I was able to get my internet working in every mode, with the NR7302 connected to the WAN port of my AX3000T (running the latest OpenWRT).
Now the problem is that the WAN link repeatedly goes down and up at random intervals. Sometimes it works for a whole day, but it can also break within 12 hours. Even scheduling regular router reboots hasn't solved the issue. On my downstream router (AX3000T), it still appears to be connected, both on IPv4 and IPv6 (DS-Lite). Restarting the interfaces from the AX3000T doesn't fix the issue—there's still no internet. Only when I manually disconnect or reboot the NR7302 am I able to restore the internet connection.
So, is this some unlucky bug with the NR7302, causing it to fail negotiation with my downstream router? Or am I perhaps missing some crucial setting that needs to be applied on the AX3000T?
By the way, it seems like I’m constantly encountering the 100Mbit/s port bug in my current configuration—this didn’t happen as often in other setups.
