Problem:
No radius login possible after the Windows Update 22H2 on Windows 11
Solution:
Modify the configuration template:
/etc/univention/templates/files/etc/freeradius/3.0/mods-available/eap
and set
tls_min_version = "1.2"
tls_max_version = "1.2"
and then
ucr commit /etc/freeradius/3.0/mods-available/eap
and restart the service
or
edit directly /etc/freeradius/3.0/mods-available/eap
and restart the service. An ucr commit will overwrite the change.
Investigation:
This issue seems to be a combination of the freeradius version < v3.0.26 und v3.2.0 and TLS 1.3 which Windows 11 22H2 wants to use.