Cannot Connect To Integration Framework On Windows 8 IE and Edge

Hello All,

I'm at a bit of a loss, we have finally got the SAP B1 Client to connect to the Integration Framework and display the dashboards within the SAP B1 client on our Windows 7 PC's and we can connect the the various portals on all browsers. However, on our Windows 8 machines we cannot connect to the Integration Framework portals on IE and / or Edge but we can on Google Chrome, we also get the error message "Cannot connect to SAP B1 Integration Service" when logging in to the client and the Dashboards do not display.

We have the relevant ports open on the firewalls on both the server and the client, we have even tested it with the firewalls completely turned off. We know there isn't an issue with the Firewall on the server otherwise the Windows 7 machines wouldn't be connecting.

I'm not overly technical so I'm running out of ideas.

Any thoughts / suggestions would be gratefully appreciated.

We are using SAP B1 9.1 PL6

Many Thanks

Olie