Hello all!
This is something that I swear was working before, but for whatever reason machines on my network can no longer update Group Policies, I receive
"The processing of Group Policy failed because of lack of network connectivity to a domain controller. This may be a transient condition. A success message would be generated once the machine gets connected to the domain controller and Group Policy has successfully processed. If you do not see a success message for several hours, then contact your administrator."
I have a simple domain running with 2 Domain Controllers. I use piHole for my DNS and my DHCP. I have custom DNS entries for both my DCs as shortnames and FQDNs, and I can ping all 4 from my machine using short and FQDN
DC1 / 192.168.1.4
DC1.domain.com / 192.168.1.4
DC2 / 192.168.1.5
DC2.domain.com / 192.168.1.5
I am running pihole on Raspberry Pi OS, set to permit all origins. to using conditional forwarding since pihole is serving both DNS and DHCP
Have both my DCs entered in as Custom upstream DNS Servers
everything is on the same subnet, no traversing different network segments or vlans
Not that it should matter my gateway is a Cisco ASA 5500x
Since I think this was working before with no issues, any ideas? I don't know when this stopped working and the last time I remember manually doing a gpupdate /force successfully was middle of last year. I've run some pihole upgrades since but who knows when and if GP broke after one of those.
Any assistance would be great!