My Sirius XM radio has been on for several hours. I am still getting the message, "program guide is updating and will be available shortly."

In the past, that message has gone away and the program guide has been available within ten minutes or so.

The radio is receiving a strong satellite signal, and stations are working, but not the program guide.

Any ideas what might cause such a long delay? Anything I can or should do?

Thanks,
Bill