It just happened again. First I rebooted the accesspoint. no result.
After that I restarted the IAS Service. no result.
After that I restarted the server and it worked again.
I have checked the IAS log but nothing is in there.
Only in the event viewer I have the following.
A RADIUS message with the Code field set to 11, which is not valid, was
received on port 1812 from RADIUS client SMNL-A-Hal2. Valid values of the
RADIUS Code field are documented in RFC 2865.
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