Lost Network after changing router's IP

April 13, 2011 at 04:30:56
Specs: Windows Server 2008, amd dual core / 4 gb
Netgear router just configured with new static public IP. Server 2008 assigned new static LAN IP. Now, workstations lost network.

New Server IP: (Can't remember what it was changed from.)
Netgear Gateway:
DHCP Range:
(4 workstations receiving IPs. The DHCP range did not change.)

Two workstations are running Win 7 and two XP. They were setup with "Z:" drives which mapped to a shared folder on the server. Now with the new server IP, the Z: drive doesn't access the folder. Not sure what to do now!


See More: Lost Network after changing routers IP

Report •

April 13, 2011 at 05:10:20
What about DNS? Do you have an entry in your DNS server for the new IP address? Where's the DHCP and DNS coming from (router or server)?

(BTW, as you have stated it you have assigned a static address to your server which is also in the range for DHCP assignment - not a good idea.)

Report •

April 13, 2011 at 05:40:51
Hi and thanks. I get the DNS from the ISP which is Integra. The DHCP is from the router. I set the static IP on the server at ... .100, the range starts at ... .50 so I thought it is safe since there are only four workstations.

Report •

April 13, 2011 at 05:54:24
Have you checked the mappings?
How have you mapped the drive to the workstations, by login script or manually at the workstation?
In that case, recreate mappings.

Click Here on HowTo ask good Question to get best Help
Let us know, if the problem is solved !!!

Report •

Related Solutions

April 13, 2011 at 06:07:19
I'm not real up on this, but I assume you mean "Map Network Drive?" If a workstation is mapped using the server name, i.e., "\\name\folder ... " wouldn't it still connect even with a different IP? I'm not at the location right now, but will be going there soon...

Report •

April 13, 2011 at 06:38:40
" I get the DNS from the ISP "

That would be incorrect if running active directory.

dns should be coming from your server to the workstations.
both server and workstations point to .50 for dns
server dns forwarder is configured with the isp dns server ips.

OK to use the router for dhcp but you have to configure it to give the correct dns ip

Answers are only as good as the information you provide.
How to properly post a question:
Sorry no tech support via PM's

Report •

April 13, 2011 at 07:06:36
Not using active directory, just workgroup ... both dns addresses are from the ISP. It's a small network with four workstations. Anyway, I'm sure I'll figure it out when I get there. Thanks anyway.

Report •

April 13, 2011 at 07:54:59
If you don't have a DNS entry for the server the workstations are going to have a hard time finding it. You could always put an entry into the hosts file on each workstation. Try connecting by IP address (\\\sharename); if that works then you know the problem is DNS.

As a matter of interest, why use 100 for the server? An address such as 49 that was not in the DHCP range would be better (or else restrict the DHCP range to exclude the address used by the server).

Report •

Ask Question