I believe this has been covered before but I can't get remote DVR to work.
I have a double NAT set up which is unavoidable because my Eero router does not "do" PPPOE. So the Eero has to sit behind an Archer router/cablemodem.
I have tried so far the following without success.
Opened port forwarding 8089 from Archer to the Eero and opened port forward 8089 from the Eero to the device hosting the DVR. (I have used a port checker to confirm that both ports are open)
Activated DMZ on the Archer for the Eero router.
Anything more I can try?