This is a tricky one, since the users are non-domain users, so work LOCALLY from their laptops and not logging into a domain as such. I have ,however, created them accounts in AD in order allow them access to our domain. Basically, they are guests who have their own domain, but obviously cant use or login once they enter our site, but they need to use our printers, access the network resources, etc. I normally get them to do this by Start>Run> type ip address of the domain controller
This then asks them to authenticate their username and password (which I have provided them with). But surprisingly on the first attempt it locks their AD account! I read somewhere its something to do with caching their password somewhere.
Please can someone help, its not affecting everyone, but its really annoying as I cant seem to nail down why its just affecting one user (esp since to my knowledge there are no local policies setup to do this).