I'd be grateful for any help here. The cable modem and router had some problems earlier in the week, and I rebooted them and re-loaded the router configuration file. Wired connections are fine, as is my laptop and my daughters connection. My son's however runs at 1Mb according to the router and a speed check on his computer. I've tried removing the adapter from control panel and reloading the driver, but it still connects at that speed.
The router is set at g/n wpa2 personal with Tkip encription. The adapters are identical Belkin usb ones. We currently have wireless G adapters only. I'm going to upgrade the adapters to wireless N, as my son's new laptop hs that spec and then all wireless pc's can connect as N.
I don't THINK he's done anything weird to his computer that's causing this, as it all started when the router crashed and had to be rebooted. Is there anything on the router that might be causing this problem?