@OnlineOaf 

Given they are both C5s, have you tried swapping them to see if the crash still happens?

@Tony I considered doing that at first but discarded it because I bought the A6 assuming it was better not only connectivity-wise but in terms of features too and I needed that in the main router. Apparently that's not the case though, not in terms of features at least. I decided to follow your advice and things seem to be going smoothly so far. Guess the C5 has buggy WDS bridging? It actually works out because the C5 has bandwith control but the A6 doesn't even though it's supposed to be better (or is it? 🤔).

@OnlineOaf 

Customers have commented that previous bandwidth controls were detailed/flexible compared to our newer revisions. Glad the current setup seems to work. I have not heard of the C5 WDS having issues, but it may be the case since not there are no issues.