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DHCP issue
Hello
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.
Thanks
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.
Thanks
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Check the following article.
You can test by changing the registry on one of the client to see if it makes a difference.
A computer loses its DHCP IP address if a DHCP server is not available in Windows 7 or Windows Vista
https://support.microsoft.com/en-us/kb/958336
You can test by changing the registry on one of the client to see if it makes a difference.
A computer loses its DHCP IP address if a DHCP server is not available in Windows 7 or Windows Vista
https://support.microsoft.com/en-us/kb/958336
ASKER
All of our clients are running Win7 and the DHCP is authorised.
The only error reported is but not sure if relevant is:
The DHCP service has detected that it is running on a DC and has no credentials configured for use with Dynamic DNS registrations initiated by the DHCP service. This is not a recommended security configuration. Credentials for Dynamic DNS registrations may be configured using the command line "netsh dhcp server set dnscredentials" or via the DHCP Administrative tool.