We’ve got a brand new RB1100AHx2 which I’ve had installed and running for a few weeks now. It’s running version 5.12.
Which ever port we have uplinking to our D-Link DGS gigabit switch, the RX of that port locks up after a few hours. The only way to bring it back is to restart the router or disable and enable the port.
When it locks up, no communication is possible through that port.
I am really unsure, but thought I’d offer a couple of suggestions:
This could be a cabling problem - are you sure the CAT5E/CAT6 cable is good? Have you actually tested it with a Fluke or Microtest unit?
How about locking the 10/100/1000 negotiation at some particular speed. If locking at 100Mb/s solves, it - then really think again about cable quality.