I have dhcp server (win server 2008 R2). Got about 30 pc in network. But I am facing problems on 2 of them. I have set IP manually on them. Problem is, that these 2 comps disconnect from network between 2 and 3 pm each day. I thought that it would be problem with leasing time. But I cant find setting, where I can set lease time to static IP, or any kind of other setting which can solve my problem.
Create IP reservation for those two clients in DHCP. http://technet.microsoft.com/en-us/library/cc780311(WS.10).aspx