Unable to login to our club website from the company network

What does PM the email from cisco mean?

PM = Private Message

Is your proxy server issuing keep alives while it is waiting for the response from our sever? The time out of the proxy server needs to be increased.

The issue is the proxy server, if you can log in from home then the issue is not the login but how the proxy server is handling the login.

My computer is not going through a proxy. My computer which I am testing with has a direct connection to our firewall and then out to your site.

Then it is your firewall. It is something in your environment that is causing the issue we have thousands of people using our system in financial institutions, government and military offices. I am sorry but we do not have the tools to debug your specific system.