Abstract This article describes the tools used to troubleshoot a Microsoft Windows XP or Windows Server 2003-based wireless client, a wireless access point (AP), and the Internet Authentication Service (IAS) when using Institute of Electrical and Electronic Engineers (IEEE) 802.1X authentication for IEEE 802.11-based wireless connections.This article also describes the most common problems with IAS authentication and authorization, certificate properties, and the process of certificate validation for both wireless client and IAS server certificates.I'm currently doing a spare-parts build to put a media computer in the living room, and having a devil of a time getting my Rosewill RNX-6300 wireless card to connect to my network.I'm trying to set it up using Windows as opposed to the proprietary Rosewill software -- the Rosewill software is a little over my head.If, for any reason, the connection turns to Manual, in order to re-connect, just bring up the available Wireless Network Connection window by double-clicking its icon in the tray bar , select eduroam and click on Connect.In order to configure the connection back to Automatic, edit the eduroam profile, go to the Connection tab and check Connect when this network is in range: Figure 14: Setting Automatic connection  = If the Wireless Network Connection icon is not present, this may be due to the wireless network manager of your vendor's card taking over from Windows' built-in one (Wireless Zero Configuration).If you are trying to connect to the 5GHz wifi, there will be a 5g after the last 3 of the routers MAC address.Note: If your router has multiple ethernet ports, DO NOT use the WAN port to connect a computer.
Screenshots are taken from Professional version thus may slightly differ from other versions (e.g.
To resolve this issue, disable 802.1X feature on your Windows computer.
Sometimes when the settings of the client device and the router don't exactly match, the client won't see the router's Wi Fi network.
Please refer to the documentation of your vendor's card in order to turn it off as this may interfere with the procedure here documented.
 = If the eduroam network does not show up, click on Refresh network list.