>>Could be related, but I don't have any big SQL transaction only a lot (A LOT) of small transactions.
>>
>>At first I thought it was SQL related but then I googled and some hits said it might be TCP/IP Socket related (I do a lot of that in this app to so my focus shifted.)
>
>Yes, sometime it only takes a very small thing to affect everything. In our case, it was data related. Let us know if you find something about that.

Some more gogeling turned up that it is related to SQL server and not TCP/IP sockets.

I found some links that sugest it might be the connection string. I think this particular user is using a local server but I use localhost in the connection string. I have to contact the customer is I notice the problem persists.

http://social.msdn.microsoft.com/forums/en-US/sqldataaccess/thread/9609559d-f7ce-4bd8-97d0-0003ff7c9c98/
http://bytes.com/groups/ms-sql/476823-transport-level-error-has-occured