@H1000 posted:My spare WIU did this same thing to me the other day. I tried it with multiple TIU's, Changed between MTH & HOME modes, and used different serial cables. I finally reloaded the 6.1 Firmware and made sure to not check mark the "Keep Settings" option.
This may or may not solve your problem but it is worth a try.
so we're clear here, you mean you re-loaded the 1.1 software into the WIFI. Not 6.1 into the TIU.