We have a Windows server 2012 R2 domain controller that has approx 15 users and all users network icon in the system tray shows no connectivity albeit users are able to access the internet and network folders etc.
In the last few days, devices have started to drop off the network randomly and receive APIPA addresses.
DHCP role is installed on the server and dhcp is turned off on the router.
Devices had a reservation in dhcp and there is a large IP scope available
We have re-installed the dhcp role on the server but still have this issue.
Would appreciate any help with troubleshooting this.