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Re: Domain controllers syncing over VPN

by in Security & SD-WAN
‎May 11 2025 10:33 AM
‎May 11 2025 10:33 AM
Yeah its weird: PS C:\Windows\system32> Test-NetConnection -ComputerName 172.21.1.10 -Port 135ComputerName : 172.21.1.10 RemoteAddress : 172.21.1.10 RemotePort : 135 InterfaceAlias : Ethernet SourceAddress : 192.168.2.10 TcpTestSucceeded : True   but then this fails... PS C:\Windows\system32> Test-NetConnection -ComputerName 172.21.1.10 -Port 49152 WARNING: TCP connect to (172.21.1.10 : 49152) failed ComputerName : 172.21.1.10 RemoteAddress : 172.21.1.10 RemotePort : 49152 InterfaceAlias : Ethernet SourceAddress : 192.168.2.10 PingSucceeded : True PingReplyDetails (RTT) : 15 ms TcpTestSucceeded : False   ... View more

Domain controllers syncing over VPN

by in Security & SD-WAN
‎May 11 2025 9:59 AM
‎May 11 2025 9:59 AM
I have a pair of MX67s. I have added a second domain controller on the second subnet... It is having trouble replicating data.  All pings and DNS issues are talking fine, just sync or replication. Someone noted that I need to add ports to allow in the VPN section.  But it already has Any... Domain controller versions Main DC is 2016, new DC is 2025. both servers report RPC-related errors (1726, 1753, 1722), confirming an RPC communication failure as the root cause. ... View more
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