Problem connecting to a GroupShare Termbase in Studio 2024

I have been attempting to connect to a client's GroupShare termbase in Studio 2024, but can't get past the entries for the address and port. When I enter the address, the default port changes from 80 to 443 and the secure connection checkbox is ticked. If I untick this, it changes back to 80. I need to use 85 for the port, but when I type this in the figures also appear above as part of the address. The error message then asks me to check the access details. Does anyone know how to resolve this issue? Thanks in advance for any suggestions.

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