I've been having issues for nearly a week. Light's ALL go solid green for about three seconds but then the tower appears to reset (top light goes red) and the process starts over. Trips to an AT&T Corporate store where I was prepared to replace the tower but the talk on the phone from there w/tech support convinced me more troubleshooting was called for; second call from home to tech support when they derigisted and reregiatered the tower; third call I was told, "be patient" because they think my issue is related to a recent software update sent to all towers (the technicial claims she got the email either late Thursday or early Friday of last week). She said the new update should take care of the issue. Nothing yet. Has anyone heard of this?