Hi,
I've got a CRS326 (v6.48) running in my setup. It is connected to a Draytek Vigor 130 Modem in bridging mode to maintain a VDSL connection over PPPoE.
I've setup a PPPoE-Client and it works quite stable but since a few months I experience sporadic outages in my WAN connection, mostly over night. Sometimes it happens multiple days in a row, but also it worked stable for the last week, or so. The last occurance was tonight. It is not directly reproducible and I don't see anything in the logs.
When this happens, the PPPoE client is still running but I can't connect to hosts outside my LAN. When I disable and enable the PPPoE client again, the connection is back instantly.
I first suspected the modem, but obviously, a reconnection with training on the VDSL side would require quite some more time...
I have no specific firewall rules on a timely basis.
Does anyone have an idea what could be the problem or give a clue for what to look for when this happens the next time?