Question Windows Server 2012 R2

[chuckles2666]

I'm trying to push a group policy update from Windows Server 2012 r2, and I keep getting The RPC server is unavailable / Error Code : 8007071a - The remote procedure call was cancelled. I've tried everything I could find on Google, but I keep getting the same error. Any help would be greatly appreciated.

I've checked my antivirus, and it does not appear to be blocking it, which I'm using Malewarebytes.
I've made sure that the RPC locator service is on.
It won't show me if the RPC service is on, and it will not give me the option to start/stop/restart. All options are greyed out.
I've rebooted the PCs, and I've rebooted the server.
I've made sure that the time synchronization service is running.

 

[popatim]

Check firewalls. This is usually a network issue with the client not being able to contact the server.

 

[chuckles2666]

I'm new to this position, and I'm dealing with a Smoothwall firewall, and I'm not sure how to unblock specific ports.

 

[SkyNetRising]

I'm new to this position, and I'm dealing with a Smoothwall firewall, and I'm not sure how to unblock specific ports.

Then maybe you should ask assistance from senior network administrator in your company.

 

[chuckles2666]

Then maybe you should ask assistance from senior network administrator in your company.

I am the complete IT department in my company. The previous person in my position is unreachable.

 

[SkyNetRising]

Oh. Then you'll have to learn Smoothwall firewall configuration on your own.

Are you sure the firewall is between windows server and windows clients?
(and not between local network and internet, as it would normally be)

 

[Deleted member 14196]

Start reading the documentation for your firewall

 

[Deleted member 14196]

Search Try this link

 

[chuckles2666]

Search Try this link

I've tried that, and I've reached out to the manufacturer for support on the firewall. I'm just waiting to hear back from them now.

 

[alceryes]

Do you have administrator access on the target computer(s)?
Is the target computer(s) still on the domain?
What do you get from a 'gpresult /r' when run from an administrative command prompt on a target computer?
Is ICMP on on your network and can you ping back and forth? (or SMB browse)
Do you have any other computer that received the updated GPO successfully? If yes, what are the differences between the computers of the successful deployment vs. the unsuccessful one?

There's at least a half dozen other questions. You really need to go through diagnostics step by step.