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Intranetwork Connection Issues

Hello,
We just recently installed a brand new Linksys E2000 router due to our old router randomly dropping internet connections. We do have a static IP and I've made all the settings identical. Ever since the installation, the internet has worked fantastic, but our intranetwork communication has been subpar. I won't be able to remote to any servers on our network or connect to Exchange. I can ping them just fine by name and IP but applications that use remote connections within our network won't work.

Any ideas?

Thanks,
Justin
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nbruns
Asked:
nbruns
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2 Solutions
 
conradieCommented:
Make sure that you are still using Windows DHCP and that all the clients in the LAN are pointing to an internal AD server for their primary DNS. Review the DNS server to ensure that all the entries are correct.

Where are the "intranetwork servers"? On the same internal LAN?
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JordanlcnCommented:
Can you diagram your Network.  The post your router config.  Then post the Ipconfig of one of the PC in the network.
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nbrunsAuthor Commented:
Thanks for the comments.

Yes, the servers I'm referring to are on the same LAN. Our network is laid out where everything basically goes through a switch with the new router going directly into it. We only have 4 servers and 4 client machines here on the LAN so its not a really complicated setup.

What does fix it is doing a ipconfig /release /renew process on the client machines. It works for a while till things start cutting out again internally.

Here's my ipconfig:
My machine's ipconfig.
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conradieCommented:
When you next experience the problem, please do an ipconfig /all on the affected machine and post it here. Also post an ipconfig /all from a working machine. Hopefully that will narrow this down. Make sure that you only have DHCP running on one device,and that it's correctly configured with all the right options. I have a feeling you have another dhcp server out there that's causing this.
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nbrunsAuthor Commented:
Ok, I did an ipconfig /all while my machine was working just fine:
 ipconfig /all while its working:
After a while it stopped working and I did another ipconfig /all:
 ipconfig /all not working:
One thing interesting is the DNS servers are different. Could that be the problem?
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nbrunsAuthor Commented:
In addition to that, I noticed those DNS ip's are the ones I specified in the router and not the ip of our domain server.
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conradieCommented:
Yeah thats the problem. Strangely, it says that the DHCP server is the same. Do you have two zones on there or something? Maybe another DHCP server with the same IP as your server? I assume that 172.16.10.25 is your server?
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nbrunsAuthor Commented:
Two zones? If you mean two different networks then no we don't. That IP is our internal server that controls the domain. The router does show that DDNS is disabled. Although the DHCP server is enabled on the router. Would it be worth disabling that to see what happens?
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The--CaptainCommented:
"Would it be worth disabling that [DHCP server on the router] to see what happens?"

Absolutely.  You should not run two DHCP servers on the same subnet.

Cheers,
-Jon
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JordanlcnCommented:
2 DHCP services on 1 network will definitely be detrimental.  make sure you only have 1 DHCP service running.  

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nbrunsAuthor Commented:
I turned off DHCP on the router and everything seems to be running fine. I'll give it a little bit just to make sure and I'll check back in. Thanks everyone for the help.
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nbrunsAuthor Commented:
I disabled the DHCP on the router and everything seems to be back in running order. Looks like that did the trick. Thanks again everyone.
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nbrunsAuthor Commented:
Appreciate the help.
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