So basically im having a real awful annoying problem. I bought a wireless USB adapter for my desktop pc which is running windows 7. The device is a media tek rt2870 and the drivers are installed. Now it picks up the wireless connection okay, but it simply wont connect. It just says it cant connect to the network. ive tried troubleshooting it but it dosnt help. The strange thing is though, at home here we got a Wireless repeater and when i turn that on and it connects to my router i can then connect my wireless adapter to the internet and it works fine. However when i take off the repeater (which just shows the original signal from the router) it wont connect. Ive tried reinstalling drivers and rebooting the computer and pc to no avail. Can anyone help?! Thanks!