Windows Servers will not connect to network, it is says duplicate IP

I have schedule restart the server every week. Every Monday, I have got this issue. Windows server will not connect to network and all users in the company have problem log-on to domain. They cannot access the file server, network printer, etc...

Here how I solve this issue.

1.) Restart Domain Controller.
2.) Log-on to the domain with Domain Admin Account.
3.) Go to 'Regedit' and go to this patch. (HKEY_LOCAL_MACHINE\SYSTEM\CurrrentControlSet\Services\TCPIP\Parameters\)
4.) Right-click 'Parameters' and select 'DWARD (32- bit) Value'
5.) Rename DWARD (32 - bit) Value to 'ArpRetryCount' and Modify value '0'
6.) Restart Server.

 This is a way how I solved this issue.