Thursday, 4 July 2013

Connectivity issue with DirectAccess 2012

Few months after we deployed DirectAccess solution into our infrastructure, we start getting hammered by people having issue with it. The one that drives me nuts is when someone says he couldn't connect, but someone else could connect without any issue. My first remedy is to ask them to restart the IP Helper service and Network Connectivity Assistant (only IP Helper for Windows 7). That doesn't always help. 

After a long time research on the internet, I found this link http://social.technet.microsoft.com/Forums/lv/forefrontedgeiag/thread/20657310-1e2e-4f66-b002-21d2a5edcab8 - which describes the same issue we are facing. 

What we need to do was to run the following command to allow Teredo manage the connection instead of 6to4.

"netsh interface 6to4 set state disabled" from a command prompt on the laptop

I tested the solution on one of our laptops and it works great

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