Hosted web site showing incorrect inside my network with my DNS.

Strange title, I know but here is the setup.

Nothing has changed internally or externally. This just started at the end of last week.

Network:
* Server 2008 SBS w/DNS (IP = 1.1.1.1)
* www.mysite.com hosted by GoDaddy
* Clients pull DNS as 1.1.1.1

-- When inside the network using my internal DNS, when navigating to our hosted corporate web site, the site is slow to load and formatted horribly incorrectly.

-- If I change client DNS to external such as Comcast, Verizon or Google, the site comes up just fine.

-- I have cleared the DNS cache and scavenged records.
-- I updated the server and restarted last night.
-- I have cleared the client's browser cache and history.
-- This happens on all browsers (FF, IE, C).
-- Doesn't happen if I use an external DNS.

Thoughts?
LVL 3
BrandonProject Manager, IT Systems and Software DesignAsked:
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Paul MacDonaldDirector, Information SystemsCommented:
Any chance you're trying to access it via domain.tld, rather than something like www.domain.tld?

Also, any chance your site uses content stored somewhere other than on the servers at GoDaddy?
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wynandkunkelCommented:
Do you have DNS forwarders configured to point at Comcast, Verizon or Google?
Your Internal clients should all point to the Internal DNS, and the DNS server will upon request fetch the address and hand back to client.  The next time a client needs the same address, the "andser" is cached on the SBS2008 DNS environment.

What might have happened is that the SBS2008 server had to use it's root hints to find the website, and it cannot do that fast enough anymore.

As a rule I set my AD servers to use 8.8.8.8 and 8.8.4.4 as the "DNS forwarders", by YMMV and you could use your "closest" ISP DNS servers.
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BrandonProject Manager, IT Systems and Software DesignAuthor Commented:
Paulmacd,

No, we are going straight to www.site.com.

All the data is stored in the same spot.

Nothing has changed.
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BrandonProject Manager, IT Systems and Software DesignAuthor Commented:
wynandkunkel,

My forwarders are pointing to Google and root hints is turned off.

So strange. It's only messed up when i use my internal DNS. Perhaps I should blow up by DNS and recreate from scratch...? But i'm not a fan of doing this.

Besides clicking Clear Cache, is there any other sure way of clearing out MS DNS cache?
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Paul MacDonaldDirector, Information SystemsCommented:
It may be someone put a fixed entry in your DNS that's no longer valid.  As I previously mentioned, the name of a resource server (like a CDN) may have moved/changed so when you try to get the site, the site appears garbled because some of the content is missing.
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DrDave242Commented:
Do your internal and external domains have the same name? This doesn't typically happen with SBS 2008 because it warns you away from things like that, but it's still possible.

Besides clicking Clear Cache, is there any other sure way of clearing out MS DNS cache?
Selecting Clear Cache from the DNS console or typing dnscmd /clearcache at a command prompt on the server are the only ways to clear the server cache that I know of.
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BrandonProject Manager, IT Systems and Software DesignAuthor Commented:
paulmacd,

I am the IT Manager and the only one with access to DNS. I've double checked to make sure the A record is set correctly.
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BrandonProject Manager, IT Systems and Software DesignAuthor Commented:
DrDave242,

Thanks doc, clearing cache hasn't helped.

WTH is it. I'm completely stumpified.
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DrDave242Commented:
Use nslookup on the server to see whether www.site.com and site.com resolve to the same address, in case there are internal links in the site's code that refer to one over the other. In fact, you may want to check this using your server and a public DNS server, just to see if there's a difference.
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BrandonProject Manager, IT Systems and Software DesignAuthor Commented:
DrDave242,

Yup, these are set correctly and haven't changed.
I'm just going to remove DNS tonight and reinstall.

Will update tomorrow morning.
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Paul MacDonaldDirector, Information SystemsCommented:
"I've gave everyone some points for helping out anyway. Thanks all."
No, you didn't.
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DrDave242Commented:
No, you didn't.
Sure he did. It just takes a few days if the asker accepts his own answer as the solution. Points will be awarded in four days.
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Paul MacDonaldDirector, Information SystemsCommented:
Alrighty, then.
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BrandonProject Manager, IT Systems and Software DesignAuthor Commented:
Sorry for the delay in getting back. I deleted the DNS from the server and reinstalled it. I think something had to have have happened where the settings for the site just did not update correctly. Restarts and cache clearing wouldn't work.

I've gave everyone some points for helping out anyway. Thanks all.
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