I have a ATT modem router combo and the Tablo wouldn’t setup on WiFi, only Ethernet. I finally found an old router and plugged it into the LAN to connect and it worked. So just be aware ATT routers must block Tablo in firewall or something. If you can’t do what I did it might be best not to try Tablo on ATT service.
If this were an actual issue, there would be a lot of complaints. You may just need to open a ticket with Tablo Support to help with the wifi setup.
I actually did open a ticket and they couldn’t solve the issue. They asked me for the modem model number and are looking into it.
Are you able to provide any technical detail (perhaps from Tablo support) regarding the problem? Is it that the Tablo device is not able to join the WiFi network? Was there a specific error message? Any specific details would be helpful for others browsing this forum as well as those performing a search.