HTTP/1.1 502 Proxy Error ( Connection refused )\nVia: 1.1 TMG01 -SP\nConnection

Hi,

I havean application thatexecutescallsto ajetty serverlocally.When I try to run the applicationI getthe error below.

HTTP/1.1 502 Proxy Error ( Connection refused )\nVia: 1.1 TMG01-SP\nConnection: Keep-Alive\nProxy-Connection: Keep-Alive\nPragma: no-cache\nCache-Control: no-cache\nContent-Type: text/html\nContent-Length: 3904  \n

 
But, this error only occurson a particular machine, when I runthe the same application on other machines have no problems.

Someoneknows what could be? I disabledthe firewall, proxy, includesrules on the firewall but nothing does thisapplication working.