Every administrator is familiar with the dreaded No Logon Servers Available error message. While the symptoms are the same as a broken trust relationship, the solution is completely different. Simply stated, find out where the network broke to fix the No Logon Servers Available error. Wireless devices make this problem a bit more difficult to fix. Wireless devices without physical NICs can make fixing the problem even harder. Adding a backup wireless network can help you fix these issues faster (or even automatically)!
Creating a backup wireless network involves two main steps. First, you have to configure your wireless infrastructure to broadcast and allow access to this secondary connection. These steps are very specific to the network devices that you have. The guidance in this section will be high-level. The second phase of configuration is making your clients aware that a backup connection is available. This is done in Group Policy and these steps will be specific to Windows Vista+ machines.