Denon Marantz integration suddenly went to hell

I have a Marantz AV20 and the integration has worked fine for a year. Today, for absolutely no reason, it completely went to hell. I am getting 503 and 404 errors. I have confirmed that the Marantz is connected to the network, reset the device and connection, updated the Remote 3 and dock firmware, to no avail. Also re-added the integration. Please see attached photos .

Anyone know what could cause it to suddenly drop dead? Would really appreciate help! Thank you.

404 normally means that the server has been reached but the page/information is not available. Did you get an update for your Marantz? Take a look into the configuration of the Marantz if network access is restricted.

Log of the the integration might help.

Ralf

What happens if you click on “Proceed”. Does the on sequence complete and the Marantz is up and running? If yes, I would try to switch off the readiness check in the activities settings.

I had this over the weekend for my Denon X4300H. I deleted the integration from everything and reinstalled it, and it has started working again. I have not replaced all my little custom items on this yet. Maybe tonight?