Problem connecting to VPN using Azure VPN from work laptop

Surio, John Dye 0

I am the only one of the team who could not connect to VPN. Encountered error message is "Status: Server did not respond properly to VPN Control Packets".

Date and time is synchronized

Azure VPN Client is allowed on firewall

Tried updating WAN Miniport adapters

AzureVpnCxn.log AzureVpnClient.log

Surio, John Dye 0 Reputation points

2024-04-23T07:24:26.4366667+00:00

Diagnostics shows no problem
KapilAnanth-MSFT 35,246 Reputation points Microsoft Employee

2024-04-23T15:56:04.9366667+00:00
@Surio, John Dye ,

Welcome to the Microsoft Q&A Platform. Thank you for reaching out & I hope you are doing well.

Is this the entire error message?

Was there a Session State present in the error message?

When you say only you are facing this issue,

Is the issue isolated to a single remote PC or is it reproducible with every remote PC?

Is this issue happening with a single user or is it reproducible with every user?

i.e., the above will help us isolate if this a user issue or device issue

I would suggest you to download the VPN Configuration once again and import the file (not manually fill the configuration) into the Azure VPN Client App and try again.

Follow : Configure the Azure VPN Client - Microsoft Entra authentication - Windows

Your error seems to be related to a mismatch in ServerSecret

Cheers,

Kapil
Surio, John Dye 0 Reputation points

2024-04-24T06:00:39.7266667+00:00
Hi @KapilAnanth-MSFT ,

Thank you for your quick response. As per the questions, here are the answers.

The entire error message is "[Error] Dialing VPN connection vnet-cfx-connectivity, Status = Server did not respond properly to VPN Control Packets. Session State: Reset sent" as taken from the log file.

For the issue, I out of 5 members of the team, I am the only one who experienced this kind of issue. Though they are located in a different region. Since this only happened to me, we could not reproduce it to other members.

I will try your suggestion on reinstalling the application. Thanks
KapilAnanth-MSFT 35,246 Reputation points Microsoft Employee

2024-04-25T05:06:56.0366667+00:00

@Surio, John Dye ,

Sure, please let us know how it goes.

"Reset sent" is usually associated with a mismatch in ServerSecret.

Cheers,

Kapil
Surio, John Dye 0 Reputation points

2024-04-30T13:42:00.7066667+00:00

Hi @KapilAnanth-MSFT , apologies for the delay in response. Had trouble contacting local IT representative to reinstall the application. I was able to reinstall the application but still encountering the same issue. The exact error message from before is what I am getting.

[Error] Dialing VPN connection vnet-cfx-connectivity, Status = Server did not respond properly to VPN Control Packets. Session State: Reset sent
KapilAnanth-MSFT 35,246 Reputation points Microsoft Employee

2024-04-30T17:57:21.5333333+00:00

@Surio, John Dye ,

As next steps, you can check the P2SDiagnosticLog from the Azure Portal.

You can filter with the IP address your client machine, to arrive at the logs specific to your connection.

Make sure Diagnostic logs for Azure VPN Gateway is enabled,

Cheers,

Kapil
Surio, John Dye 0 Reputation points

2024-05-02T09:09:42.6833333+00:00

Hi @KapilAnanth-MSFT ,

They were able to run PS2DiagnosticLog but found no problem.

What will be our next step to locate the issue?
KapilAnanth-MSFT 35,246 Reputation points Microsoft Employee

2024-05-03T04:17:21.33+00:00

@Surio, John Dye ,

Per the logs you shared, it looks like your login was successful.

Whatever is causing the issue, appears to be at the device end.

To troubleshoot further, we will need a specialized 1:1 session, where a support engineer can have a screen share session to pinpoint the issue. If you have a support plan you may file a support ticket, else please do let us know, we will try and help you get a one-time free technical support.

Cheers,

Kapil
Surio, John Dye 0 Reputation points

2024-05-03T05:18:16.73+00:00

Hi @KapilAnanth-MSFT ,

Do you have an idea on how can I find the issue on my side?
Surio, John Dye 0 Reputation points

2024-05-03T05:35:16.3433333+00:00

Hi @KapilAnanth-MSFT ,

Do you know any tool that can help me find the issue on my laptop/network which can help when I request for the necessary help?
KapilAnanth-MSFT 35,246 Reputation points Microsoft Employee

2024-05-03T18:06:43.9266667+00:00

@Surio, John Dye ,

I would suggest you reach out to Azure Support only, to get the issue isolated and resolved.

I have shared the steps required for us to provide an one time free support, please check the private messages.