Can't copy files from my Tivos (Premiere and HD, kmttg) since March

I have two Tivos (HD and Premiere) and a Netgear ReadyNAS Ultra 4 which can automatically back up .tivo files, assuming they are recorded as "Keep until I delete." I'm also running kmttg v2.2t on a Linux desktop.

Since early March, the ReadyNAS has not saved a single program from either Tivo. Also, when I try to manually back up programs from either one using kmttg, they transfer only about 90 to 180MB before stopping.

I did add a new Netgear Nighthawk X6 R8000 router, but I think I added...

Can't copy files from my Tivos (Premiere and HD, kmttg) since March

Can't copy files from my Tivos (Premiere and HD, kmttg) since March