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stevenvanheerden

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Server's Internet intermittent

hi

i have just been replacing a server with a better one.
trick was, i had to rename the new server to have the same name as the old one. the "new" server was used at another branch...
the new server also needs to have the same IP address as the old server.
now i have changed the server name with the netdom.exe utility and everything went according to book.
i then changed the ip address settings, double check the entries in DNS was up to date and created a new DHCP scope.
everything looks like its running fine....but the problem is that for some reason when you browse the internet through a browser (any browser) it times out the first/second time. you keep refreshing and eventually it goes through. its obviously frustrating.
this is also a problem for all DHCP clients.

if i take my laptop, like i am now and assign it a static ip but make the dns my router, my internet works normally.

how can i resolve this?

need to have these guys up and running in the morning!!
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stevenvanheerden

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hi

ok, thanks...

i'm going down your checklist here...

How are the clients set up for DNS requests? - Automatic Obtain

There may be multiple entries pointing to various addresses. (PC's under ipconfig /all the correct info)

If you want DHCP server to carry out all the work: - YES

On each Client -> Set both IP and DNS in TCP/IP Adapter properties "to automatic" - Yes it is

On your new server: at the hierarchy of your DNS Server ensure Forwarders are correctly set to forward external requests to another source - Which entry do i check for that?

i guess i can use my routers internal address, but where do i edit that?

Ammend TCP/IP Adapter settings for the server and point to its DNS server installed.

This is showing...

IP: 192.168.1.2
SN: 255.255.255.0
DG: 192.168.1.254

Prim DNS: 127.0.0.1

In DHCP. Ensure within the Scope settings that DNS server Property is correctly associated with the DNS server IP of your new server.

As far as i can see in the DHCP section everything looks fine - its got green ticks everywhere and the various settings in Scope Options looks correct.

Ensure the Router Server Property is correctly associated with the Router / Gateway / Firewall IP  -  Yes they are

Carry out a IPCONFIG /Release and then /Renew on clients to received their new dhcp settings  - i have done this and they receive the correct settings - i even get my network drives on the client through group policy, so that part looks fine.
i think you must please assist me with the forwarding zone for external requests.
i'm not sure if this is healthy, but cant one add a second dns setting to the dhcp scope to give clients, and make that the ADSL routers address?


thanks so far
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cool, ok before i do that...

i went to the location (Forwarders Tab) and saw one entry there, the servers old ip of 192.168.0.1.

should i not just change that to the new ip of 192.168.1.2?
No because you'll just loop unobtainble address queries like https://www.experts-exchange.com

DNS Traffic Will just communicate inside the DNS database for your server then sending your clients invalid responses.

The purpose in Forwarders is to forward DNS Queries that the Server being queired doesnt understand / or know the Network resolution for.

Thus you have a forwarder to resolve via an alternate location.

You can also select Root Hints to resolve external queries which is a default list of external servers available on the internet.

For now put the address of your Router in there. and see what happens i think you will be happy.
100% will do that...

give me a couple of mins just to test as well.

thanks !!
hi

THANKS A LOT!!!!

seems to be fine now.
I am new to this expert-exchange, do you have to mark this post as solution found?
ok will close the ticket now...

thanks again! Lifesaver!!
Anytime :)
Great Work, Thanks a lot!!