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Exhange 2007 on Windows 2003 having to restart the dhcp client service

Hello,
Does anyone know how I can fix this issue with our Exchange 2007 on Win2003 server? Beginning early this morning all connections from outside our LAN are lost or down on our Exch2007 Hub Transport server. After checking all services it came down to restarting the DHCP client service and the Hub Transport server is back online. It is very sporadic and I can't seem to find out how to fix this.

Outside email stops arriving and I'm unable to access the Exh2007 server via iPhone or OWA.

Thanks,

Amit Kumar

is your Exchange 2007 server running on automatic IP address instead manual configuration?

cbumatay

ASKER

No, it has a static IP I manually set.

Amit Kumar

Then DHCP client service won't effect network connectivity on your server, Try taking a complete reboot and check physical network connectivity.

cbumatay

ASKER

This is one of the Event ID errors I'm getting all of a sudden?

Event Type:      Error
Event Source:      NetBT
Event Category:      None
Event ID:      4321
Date:            6/27/2017
Time:            8:43:25 PM
User:            N/A
Computer:      KCWA-HUB
Description:
The name "KCWA :1d" could not be registered on the Interface with IP address 192.168.1.6. The machine with the IP address 192.168.1.253 did not allow the name to be claimed by this machine.

ASKER CERTIFIED SOLUTION

Amit Kumar

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