Azure VPN tunnel suddenly unstable RRS feed

  • Question

  • I have recently developed an issue with our site to site tunnel. It is now randomly dropping for a few seconds at a time.

    Our end is a Cisco ASA 5510. It was running well for a couple weeks and on Monday of this week it started becoming unstable.

    I am able to force the tunnel to drop if I start a large datastream between the sites. For example, if I tell the two servers in my couchbase cluster (one in LA, the other in Azure) to rebalance, it never gets above 10% and I see the tunnel drop.

    Our other site to site tunnels to our other offices are not seeing this behavior, and the WAN interface of our firewall is clean

    Friday, November 30, 2012 9:44 PM




    Thank you for posting your question here.

     Have you tried large data transfers before this week?

    We'll need to investigate this directly with you. Please send me an email to iaasforum@microsoft.com along with the following information:

    1. The title of this post in the subject line

    2. Your first and last name and Live ID

    3. A link to this forum post

    4. Your subscription ID

    5. The VM's info:

    i) VM name


    iii) OS version of the VM

    iv) Time Zone of the VM


    6. Virtual Network configuration export file from the Portal in XML format.


    7. The output of the configuration of your Cisco device (show running -config) along with the OS version.




    Friday, November 30, 2012 11:43 PM