R7100LG Internet via LTE drops out every hour precisely (interrupts video conf calls, games, stream)

gamoul That's exactly what I was about to suggest. Using IRC (I confirmed this using Konversation and XChat) is the easiest way to reproduce this issue. Just turn it on, sit and wait. 

I also ran `ping` and `curl` in a loop to see if this happens also to the new connections. The answer is negative. Pings and curl queries were all successful. Only the established TCP connections are dropped. 

Come on Netgear! Now, there is no excuse, you can reproduce it in your own lab!

Netgear support - I've just created a support case. ID: 29651272

dam_ged Diagnosing this might be very tricky. The router might just override the sequence number in a TCP packet and the application behavior might be exactly the same as we can see in our cases. Of course I'm just guessing here...

The only way that comes into my mind is to monitor the network equipment with Wireshark and on the second window monitor active connections using Netstat for example (I have never done this on Windows but there should be something similar there). The hardest part would be to correlate TCP packets from Wireshark with a connection that has just been dropped (and which one you may find out from Netstat; it should be removed from the list of established connections). Once you find this, you'd need to inspect the packets manually and see what's wrong. But honestly - isn't this something to be done by the Netgear folks?