AT no T -- Configuration

[W6BQZ]

Anyone have success with setting up 1258's with ATT U-Verse?

We worked on it for hours yesterday only to come up empty handed.

We have U-Verse, they tell us they are IPv4 (is there a test for that?), the Router is Model 5268 AC.  There is a side unit with coax in and ethernet from it to router wireless router.

We have tried to get the RR to work off of ATT's modem and our modem.  (When ATT was installed they brought the line into their modem and then into our router.)

Photos are attached.

Any help out there is you-have-no-idea appreciated.  History:  We've had Time Warner here prior to our recent switch from ATT.  It worked nicely with the 1258 for two years.  But, now we are trying to use ATT and it is a challenge.

Ken - W6BQZ

[dj0qn]

You probably are experiencing "double NAT". This would be caused by installed a second router/modem that
is cascaded from another one, but both are running DHCP servers. You can only have one DHCP server running,
preferably from the device that accesses the internet directly.

To test, go to https://www.whatismyip.com/ and check what is there against the IP address status in the RRC.

73,
Mitch DJ0QN / K7DX