Regarding DNS in Windows Server 2003

How many switches do you have, and how are they connected?

 

I have 2 2948G switches and they are connected via fiber optic cable.
The two switches are in different comms room.

Regards,

 

So two 48 port switches and potentially 4Gb/s plus trying to get over that link.

What speed is the link?

Have you connected the server to one of the Gigabit ports?

 

I'll be checking this tonight,
i have not connected the server to the gigabit port,i will do so tonight.

Thanks

 

What i done was switch off the two cisco switches and connected another switch for testing reasons and it still gave me the same symptom

The new switch that i replaced has no STP ability

This time when i checked the system event.
It gave me the following "


Event ID 1010 :

The DHCP service encountered the following error while cleaning up the database:
An error occurred while accessing the DHCP database. Look at the
DHCP server event log for more information on this error.

and..

Event ID 1016 :

The DHCP service encountered the following error when backing up the database:
An error occurred while accessing the DHCP database. Look at the
DHCP server event log for more information on this error.

and...

Event ID 1014:

he following problem occurred with the Jet database -1032: Jet database read or write operations failed. If the computer or database has just been upgraded, then this message can be safely ignored. If this message appears frequently, either there is not enough disk space to complete the operation or the database or backup database may be corrupt. To correct this problem, either free additional space on your hard disk or restore the database. After you restore the database, ensure that conflict detection is enabled in DHCP server properties. For information about restoring the database, see Help and Support Center. Additional Debug Information: JetBackup "

I don't think the issue is releated to it.

I'm thinking of disabling the DHCP on the server and enable it on the router and see if it's same issue.

 

If you have a gigabit NIC in the server, you should get a performance boost by connecting the server to the gigabit switch port. Not with any single connection, but rather in the ability the server has in serving many computers at once.

When I added a gig-port to my main switch and connected my main server to it, none of my users commented that the network performance had improved, but the complaints that the network was slow stopped! Such is the lot of the IT manager - no one makes a fuss when you get it right!

 

This might be worthwhile for diagnosis, but DHCP on the server usually gives you a lot more flexibility than that provided by a router. Also you'll lose the dynamic connection to DNS. That is DNS will not be updated with any new DHCP lease information.

I'd be tempted to set up DHCP on the router for a short period to test if it is this service causing the problem. Once I'd tested this hypothesis, I'd switch back to the server DHCP.