Hi there mate...sorry I couldnt answer last night, but i did see the post.
It was an obvious suggestion, but it didnt work in the end. Other laptop could connect and I couldnt use half the buttons in the network sharing centre (or whatever its called)..
In the end, I replaced the van.dll
and iphlpap.dll files
with ones i found on this website (Windows 7 64bit Untimate - IPHLPAPI.DLL download
cant remember which, but not all could be overwritten, but the ones I did manage to do, did the trick (and I noticed that the ones that i could replace were different file sizes compared to the ones I downloaded, whereas those I couldnt replace were actually the same size)...
I got the ones both for ...\system32\... and ...\syswow64\...
Anyway, somehow it works now..!
Thanks again for all your help.
Have a good one.
After I rebooted in safe mode with connectivity it worked, and then I went to