Hi guys, I'm on Shibby 1.32 RT-N firmware and I did do some silly things, like dirty flash directly from the RT-AC with no nvram wipe. However, the 5Ghz radio on this unit never worked well and I'm wondering if I could get help troubleshooting this anyway. For some reason the signal is good but Windows reports "54mbps" and never more for 5Ghz on this router. If I move further away it drops to 48mbps or 36mbps - it's almost as though it "thinks it's G router." Anyone know what could cause this?