I tried simplifying the problem statement, it appears to be counter productive. So here is the full story. I have a server (A) behind NAT, in a country that blocks a lot of websites and performs DPI.
No, two routers will not cause problems. If they are on the same (or close) channels, it may cause some slowdowns in performance tho, it's best to get them on channels at least 6 apart, so no part of ...