Forum Discussion
Problem with Azure VPN Point-to-site
- Sep 27, 2021
So... We continued our troubleshooting with Microsoft Support since we reported the same issue in 2 other environments and I can happily inform that after another month of tracing and investigation of the NCSI logs we were presented with the following solution:
Symptom:
While on P2S VPN, client machines report connectivity loss but browsing and DNS still work.Cause:
According to the NCSI trace, the DNS probe was not using proxy but going Direct instead.Resolution:
Enabled the Specify Global DNS via Registry Key which seems to have solved the problem for now.Registry Key modified: RegPath: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\NetworkConnectivityStatusIndicator
RegKey: UseGlobalDns=1
Type: DWORD
We are now running this with three different environments/customers and we have zero reported issues from the when now working over Azure VPN.
Case closed!
So... We continued our troubleshooting with Microsoft Support since we reported the same issue in 2 other environments and I can happily inform that after another month of tracing and investigation of the NCSI logs we were presented with the following solution:
Symptom:
While on P2S VPN, client machines report connectivity loss but browsing and DNS still work.
Cause:
According to the NCSI trace, the DNS probe was not using proxy but going Direct instead.
Resolution:
Enabled the Specify Global DNS via Registry Key which seems to have solved the problem for now.
Registry Key modified: RegPath: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\NetworkConnectivityStatusIndicator
RegKey: UseGlobalDns=1
Type: DWORD
We are now running this with three different environments/customers and we have zero reported issues from the when now working over Azure VPN.
Case closed!