Just got my MAXX on Monday (3/21/12) and today have noticed that I have trouble switching back into 3G from 4G. I work in a 4G area and I stay connected all day at work, but when I drive home the 3G will only stay locked in for about 5 or so minutes - then I have no network connection. I also have an IPhone 4S and it has no issues with staying connected to 3G. Googled the problem and it seems a few others have the same problem with no solution. Called verizon tech support and they sent me to level II support and eventually wrote up an engineer ticket. They took me through these steps: 1) reboot (obvious), network disconnect/reconnect 2) turn off the CDMA/LTE and only go with CDMA - this step I couldn't even get the network to connect for the 5 minutes 3) take the sim card out for 40 seconds 4) check for newer updates - it was up to date We have ruled out sim card issues since the 4G stays connected while in the 4G network. Anyone else notice similar issues? Will write back if the engineers come up with anything.