Azure VPN Gateway
An Azure service that enables the connection of on-premises networks to Azure through site-to-site virtual private networks.
1,787 questions
Losing connection to Azure Servers when on Azure VPN Client after a few minutes. VPN stays connected
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J
0
Reputation points
Hello,
I have a very strange issue with Azure VPN Client. After fresh booting a computer and connecting to the Azure VPN Client I can run an IP scanner and ping all the servers in Azure as well as their open ports (80,443,3389, etc.) If I make an RDP connection to the private IP everything works fine. After about 2-3 minutes I am unable to make any new connections to any of the ports on any server, but I can still ping the IPs, even though the scanner shows no open ports and I'm still connected to my 1st RDP session. If I disconnect from the VPN and reconnect, I still can't connect to any server but can ping them. I have to shut down the computer, boot back up, and reconnect to VPN and servers. I have tested this process on multiple joined/non-joined/Intune/non-Intune/Admin/non-Admin/Win10/Win11. I have S2S VPNs also using the same VPN Gateway with no issues. Needless to say, this beyond frustrating.
Azure VPN Gateway
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ChaitanyaNaykodi-MSFT 27,476 Reputation points Microsoft Employee Moderator2023-02-23T01:26:10.44+00:00 Thank you for reaching out.
Can you please validate if there is no Firewall set-up in your environment? as a rate limiting rule for TCP or UDP traffic can have this effect on the traffic.
Also, it can help if you can do a packet capture at you Azure VPN gateway and at the S2S VPN device to see if issue is at Azure end or On-prem end. Thank you!
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ChaitanyaNaykodi-MSFT 27,476 Reputation points Microsoft Employee Moderator
2023-02-24T18:55:00.0566667+00:00 Just following up here to see if you were able take a look at my comment above. Thank you!
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