WRTU54G-TM try this to fix blue light problems, dropping service and disconnects

Question

I spent a ton of time on the phone with T-Mobile, Linksys and the internet company to solve the problem of the router kicking off frequently.
 The last suggestions, which has worked so far is to log into your router.  Change the MTU from automatic to manual and then type in 1450.  Save and it will reboot.  Wait until your back online and you should have NO problems.  Linksys says this is the workaround until tmobile releases the ok on new firmware.
if its blinking blue either call tmobile and have them deactivate the voicemail on that line or you need to set it up.
Good luck.

Answer 1

Hi,
I just started the t-Mobile @ Home service with the WRTU54G-TM router this weekend and had all sorts of issues with the router rebooting and dropping the blue-light.
I have AT&T DSL with a 5100 Speedstream modem.  Before getting the Linksys router, I had a 5 year old Netgear wireless router that had a rock solid internet connection - only dropped it 3 times over a 5 year period.
After having a full day off issues with the t-Mobile Linksys router, I decided to try reconfiguring my network so I had the Netgear router in between the Linksys and the modem.
I downloaded the latest set-up wizard from Linksys and ran it (and followed the instructions to the "t"), and chose the option to keep my existing network (with the netgear router) and add the t-Mobile Linksys router to the existing network.  Since the Linksys has better wireless and security features than the old Netgear router, I still have all my wireless traffic going through the Linksys (I turned off the wireless features of the Netgear router).  All the Netgear router is doing is keeping the internet connection alive.
So far (it's only been one day), I've seen a dramatic improvement - haven't lost the blue light once and everything seems to be running fine.  If you had an existing router that worked will prior to adding the T-mobile one, I would encourage you to try this set-up, since it has worked very well for me.