I have a RUT950 on latest FW. On occasion it just stops forwarding traffic between the 4G connection and the internal router. The 950 is configured with passthrough to the mac address of the internal router (UniFi USG)
When this happens I can not connect to the WiFi of the 950 (which is still active) nor the physical ports of the 950, in order to troubleshoot it. My laptop says (connected to a LAN port of the 950) that another device is using my IP adress, when I change the IP manually of the laptop, I get the same error again for the new address.
There are no other devices conntected to the LAN of the 950, apart from the connection to the UniFi USG for the passthrough.
The leds on the front of the router are green and blinking, as to indicate the 4G is up.
When I do a power reset it comes back to normal operation.
Any ideas?