I just started on att u-verse, i was already with att with my landline and internet but after the new uverse modem was installed I can't get my laptop, ring doorbell, or my alarm system on line. What can I do to get this fixed?
Your new gateway has a different network name and password than your previous gateway. Either reconnect all your devices using the new gateway network name and password, or rename the network and set a custom password. The default network name and password are on a yellow sticker on the gateway.