shaunywrx

Anyone got any ideas as to why my wireless connection sometimes works and other times it dos'nt, whenever i turn on the laptop it's completely random as to whether the wireless connection works, although more often than not it dos'nt, it all started about 6 weeks ago after i installed a windows update, it just stopped working, so i un-installed the update and all was fine for a while, then it just stopped working again, i think the router is working ok, because if i link the laptop to it with a cable it works fine (thats how i'm managing to post this now), could it just be the network card in the laptop, and if so are they expensive or difficult to change? Any ideas please i'm desperate for help.