Yay! Everything's connecting, thanks folks!

OK, got it running as a wifi extender, but am now running into odd connection failures - Steam won't connect, but will on my tablet connected via wifi to the cable router. Some, but not all, websites...

(I don't have the firmware version easily available at time of posting.) I've been using my Archer A6 (AC1200) as the router plugged directly into my cable router, but I've moved, and no longer have...