The router was never the issue (easily determined by the mac prior to and post issue). The issue was the remote end allowing the session to come up. If you read my ticket you will see that my grip is your support not reading the initial or response ticket and responding in a redetermined way (cookie cutter) responses. But like you say "As I said before, eliminating any other issues is paramount because dealing with Vuma and AEX NOC on broadcast protocol issues is a headache- to put it lightly" using a predetermined script. Prior to logging the ticket i had already carried out all the steps your first line was asking me to do. So as exhibited above you/they are not even aware of the fact the connection reconnected at 20H35 without any local changes.- Also, no, this is a common misconception. The PON light indicates you have a connection to the OLT, so your last mile is fine. It does not indicate you have a connection to the Vuma core network neother to our network. There are no status lights on the ONT which indicate you have a connection through to our network. So we use MAC lookups on L2 and compare these to what Vumatel say they are learning at the LAN port to see if we can see you, if we can, we then turn to troubleshooting why your connection is not establishing.
On a sidenote, through all of this, I didn't check if you're online. You are.. Your session came back up 15 hours 30 minutes ago, which is after we sent you a response suggesting the issue was on your router?