AD trusts not working after updating to 11.3

After updating a FreeNAS 11.2-U8 test machine to 11.3-U2, it can no longer authenticate users from a trusted domain with Kerberos (only NTLM works). Every attempt at connecting to the freenas machine via \\DNSNAME fails. Using the IP of the updated freenas server works, however.

We have a two way domain trust between USERDOMAIN and SERVERDOMAIN.USERDOMAIN. With the freenas server being on SERVERDOMAIN.USERDOMAIN and the users being on USERDOMAIN.

Running "wbinfo --online-status" after...

AD trusts not working after updating to 11.3