Hi Barry, thanks for the quick reply. Answers below:
I am using Android
WIU is in HOME mode.
I know that WIU is connected as I am intermittently able to get one of the trains to connect via WIFI and run and then it will go to inactive and not run anymore.
I am fairly certain that 1.1 is installed. I just reflashed WIU at the same time I upgraded TIU. On my laptop, the firmware that I downloaded is: WIU_1.1.0.bin. When I performed the flash, everything completed normally.
I wait about 10 minutes. I generally start my WIU and do other things and then come back and start the transformer and then start the app on my phone. When the app is starting I receive "No TIU's found" error, and when I attempt to add a train I get the either "No TIU's found" or "Interrigating..." (I don't remember the exact error)
I can also tell you that when I first bough my WIU, i had the same exact problem. I didn't realize at the time that the WIU's were shipping with an old firmware level on them. I found on this forum that I needed to upgrade it. Once I did, everything ran perfectly and continued to do so until I applied the 6.0 upgrade and moved to premium. Now, I have the same exact symptoms as I did at first.