Premier Trouble Receiving Remote Commands

Yesterday our Premier starting having a hard time receiving button pushes on the remote. Sometimes I have to hit the buttons many times to get it to work. When it works, the yellow light on the Tivo lights up and when it doesn't work the light does not light up. I put new batteries in the remote and that didn't help. So I went and got the remote for my Mini and tried it. The Mini remote had the same problem. So I took both remotes to the TV with the Mini and both of them work fine there. So it seems to me like my Premier has somehow developed a problem receiving the IR commands from the remote. The path is not blocked and I cleaned off the front of the Premier. I unplugged the Premier so it rebooted and that didn't help. I have version 20.4.7a-01-2-758 but I don't know when I received it.

Any ideas on what is going on or how to troubleshoot it?

Thanks.