I am running a DHCP server on a Windows server 2003 R2 over an AD, last night it stop leasing IP addreses, now i cannot connect to the server and ping it either.
the current clients have already ip leases so their internet connection is fine but when they relese/renew the ip, clients cannot obtain an ip address and it auto asigns a random ip.
when i assign manually an ip address to the client PC internet works but still cant connect to the server,
also we have IP phones installed and on screen it displays Looking for DHCP server.
I tried to:
reboot the server
restart DHCP server
Also i have noticed that Server can ping clients where i inputed manually the IP also noticed that some services have stoped overnight and i have to start them again
Any ideas any one