I have program that gets and uses an XML file from the internet. It works on most computers but on one particular computer it repeatedly generates an exception with message "No connection could be made because the target machine actively refused it 127.0.0.1:5555" and error code 10061.

On this computer I ran a registry repair software that fixed over 1,000 errors and left 13 it could not fix. The exception running my program on this computer still persists.

any ideas on how to proceed in resolving this problem?