Since Windows 10 we have a problem with Windows-based clients in our FreeIPA linux domain.
ksetup to allow authentication over Kerberos so that, after setting up local accounts, users can use the same password as on Linux. This worked reasonably well up to Windows 8.1.
After upgrading to Windows 10, the computer becomes extremely slow when logging in over Kerberos. The login takes up to 30 minutes, opening the Start menu takes about 1-2 minutes and opening applications like Firefox also takes about 5 minutes, which makes the computers effectively unusable.
When logged into a local user account everything is fast as expected, even when accessing Samba shares or other resources in the network.
What may be a cause for this behaviour?