I need advice and translation of what this capture - attached means. This is the situation. I have a windows app that uses a web service on our web server - the web service accesses one of our database servers. Recently it started to ramdomly fail to retrieve data. I cahnged to completey different database server but still the same. I moved web service to another server but still fails randomly. When I say fails I get "An existing connection was forcibly closed by the remote host" In IIS 6 on the server everytime a failure occurs I can see in the logs an entry that has sc-win32-status with a value of 64.
I did an HTTP capture using ColaSoft Capsa (Wireshark seemed too difficult to understand). Now I got loads of TCP duplicated ACKs but I am not sure if they are indicating that there is a packet loss in my network. PLease have a loo at the attached image.
Can someone please comment or give advice here. Please note that when I moved the Web service to my local PC (localhost) IIS it works fine from opther machines in our LAN
Thanks in advance