OK, I thought I would try to connect directly to the AT&T roputer and bypass the wi-fi extender, since that was successful before. I wanted to connect and see the manual IP address on the router table.
Per the trouble ticket suggestion, I attempted to connect using the Alarm.com connection tool and manual connection settings to the router:
Network: ATT3sbn8zv
Password: xxxxxxxxxx
IP Address: 192.168.1.99
Subnet Mask: 255.255.255.0
Gateway: 192.168.1.254
DNS1: 8.8.8.8
DNS2: 8.8.4.4
Result: Success but with a weak connection. I was able to view the front door through the cell phone app. I launched the AT&T Router information on my home PC and recorded the IP addresses (see attached). I didn’t see this IP address listed in the router table. After a few minutes, the cell phone app indicated a problem and suggested launching the app troubleshooter. I performed the 1st step (disconnecting the Skybell from power), but stopped on the 2nd step (disconnecting the router from power) as I didn’t want to go through that nosebleed yet again.
Router-Info-2018-04-24.xlsx (9.98 KB)