M-CR510

[M4TH1EU]

I keep getting these errors from denonavr running latest homeassistant and a Marantz M-CR510:

2025-05-14 18:04:09.291 INFO (MainThread) [denonavr.input] No mapping for source Media Server found
2025-05-14 18:01:19.273 INFO (MainThread) [denonavr.input] No mapping for source NET found

I've ran the script you asked people with the issues to run, here are the various XML files it created:
AVR-M-CR510.zip

[ol-iver]

It looks like your receiver returns the same device sometimes as Media Server and sometimes as Music Server.

Are you able to change the input to Media/Music Server using homeassistant?