Hello,
i was running RB3011UiAS-RM for 4-5 years now with a simple configuration of POE on port 1 , bridge the rest of the ports and NAT, barely using 1 % of proc and suddenly i started to loose packets, like 35 % or so.
After banging my head for 2 days, reseting configuration, start from scratch many times i found out the ports 1-5 was causing the issue, moving everything to ports 6-10 and my router worked perfectly.
I even upgraded to 7.8 from 6.49.7, issue persisted.
What can be the cause ? Motherboard looks ok, no caps swollen.