please confirm if Azure has multiple outages over the weekend

Question

Hi, we have lost both VPN tunnels briefly to our UK South VWAN twice over the last 48hrs.

Would you let me know if there has been any issue over the weekend please?

thanks

Gus

Answer 1

Hello Anonymous

The UK South region is currently operating normally

Please refer Azure Outage status

To help diagnose your situation with the VPN tunnels, you might want to check the following:

1. VPN Logs: Review your VPN logs (TunnelDiagnosticLog) to identify any specific errors or issues related to the disconnections.

The TunnelDiagnosticLog is useful to troubleshoot past events about unexpected VPN disconnections. Its lightweight nature offers the possibility to analyze large time ranges over several days with little effort. Only after you identify the timestamp of a disconnection, you can switch to the more detailed analysis of the IKEdiagnosticLog table to dig deeper into the reasoning of the disconnections shall those be IPsec related.

Some troubleshooting tips:

• If you observe a disconnection event on one gateway instance, followed by a connection event on a different gateway instance within a few seconds, it indicates a gateway failover. Such an event typically arises due to maintenance on a gateway instance. To learn more about this behavior, see About Azure VPN gateway redundancy.
• The same behavior is observed if you intentionally run a Gateway Reset on the Azure side - which causes a reboot of the active gateway instance. To learn more about this behavior, see Reset a VPN Gateway.
• If you see a disconnection event on one gateway instance, followed by a connection event on the same gateway instance in a few seconds, you might be looking at a network glitch causing a DPD timeout, or a disconnection erroneously sent by the on-premises device.

1. Resource Health: Use the Azure portal to check the health of your Virtual WAN resources and see if there were any reported issues during the time of the disconnections.

Reference article: How to Create diagnostic setting to view logs

To better assist you, can you provide more details about the issue?

1. Have you checked the Azure status page for any reported outages related to your region?
2. Are there any specific error messages you're seeing when the VPN tunnels drop?
3. How frequently are the disconnections happening? Is it sporadic or consistent?

• Virtual WAN FAQ
• What is Azure Virtual WAN?

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Hope the above answer helps! Please let us know do you have any further queries.

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