Issue with Wallets 1.8.x Error invoking remote method 'doRPC_IPC': NO_CONNECTION

Hello, I have been using Zcash wallet fullnode since 2018. It always requires updates every 90 days or so. It hasn’t been a problem.
Now, with the 1.8.x releases, I get the following error:

Error invoking remote method ‘doRPC_IPC’: NO_CONNECTION

The host machine did an update to Windows 11 behind the scenes.

Can someone point me to a solution for this error?

Thanks