Message from Web Page, Error occured when connecting to sage accpac server

I have 3 PCs in our remote location connected via DSL Data connection, the web Accpac is working fine with 2 PCs and the third is always giving the above mentioned error.
We have cleared all old IE settings, Data, and downloaded installed programs. But it did not make any difference.
The PC in question is WIn 7 Pro SP1 32 Bit... IE. 11
Antivirus and Windows fire walls are disabled,
Any advice