perform() - second request fails authentication

[far...@smtresearch.ca]

To all the awesome people on this forum, I am ruunning into a problem here that is as follows:
1. The first request with login credentials to a server running Apache returns a phpsessionID.
2. The second request to the server uses that phpsessionID and appends an action in the url but the second request fails stating "login required" by the server.

So, the point of failure is the second request that has the phpsessionID but is not recognized by the server.

I THINK each of the requests sent using perform() is done on a different port number and that is why the second request that has the phpsessionid does not authenticate. Is that correct? If so, would someone know how to fix this. If not, I am looking for some pointers on this.

Your help is much appreciated in advance!