Shot in the dark, but any driver updates for the network adapter? You should be able to find them on the manufacturers site under a driver download section. You just mentioned disable/re enabling the device, an update might be worth a shot if there is one too.
If you have an external wifi card on your PC, could try to plug it into hers and see if she gets good speeds then. Would tell you if its just something with her built in wifi adapter
Shot in the dark, but any driver updates for the network adapter? You should be able to find them on the manufacturers site under a driver download section. You just mentioned disable/re enabling the device, an update might be worth a shot if there is one too.
If you have an external wifi card on your PC, could try to plug it into hers and see if she gets good speeds then. Would tell you if its just something with her built in wifi adapter