Friend has a Plusnet BB with an old Belkin router. Her old laptop connects wirelessly with no problem (she's running it as an unsecured network). New W7 laptop sees the connection but then says no internet. Brought the lappy home and it connects to my Thompson router fine. I've suggested she ring Plusnet and ask for a newer model router, but am I missing something here?
Can you or friend run IPCONFIG /ALL in a Command Prompt window, right click in the window, "Select All" and press Enter to copy the details to the clipboard. Paste the details into a forum reply here.
As she is unable to paste the details directly from the computer, because it cannot get online, paste them instead into a blank "Notepad" file, transfer the file to a working PC and copy/paste the details from there.
The inability to get online with a wired ethernet cable suggests it's a PC issue and not the router.