I have the TT Go740 and have lost my live service connection. I called TT and they had me send my device back into them as they thought the sim card was bad. We went through all the normal procedures for checking it out and couldnt find anything wrong on my end......I sent the unit to TT and they sent me a replacement which I received just yesterday.....I restored the backup that I did before sending my unit into them (windows explorer backup) and thought things were going to work like they were supposed to.....but I guess I was wrong, hooked the TT up in my car and plotted a destination and no service just like the original TT that i had sent back. I placed a call to TT today and of course the tech wanted me to wait a day or so and see if things started to work....Im in the Jacksonville Florida area and was wondering if anyone else in Florida or the area that I am in was having the same problem. Its telling me that I dont have an internet connection for the live services......they also checked my subscription and when they issued me the replacement TT I got another 3 month free subscription and the one that I payed for is on hold till this new free subscription runs out. I have checked just about everything that can be checked, did a warm reset, and also reset the TT back to factory settings, still no response from live services. Any help or suggestions would be greatly appreciated.