Unusual SBS Internet Problem

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Unusual SBS Internet Problem

Original Message

Name: Simeoni
Date: October 3, 2008 at 08:20:52 Pacific
Subject: Unusual SBS Internet Problem
OS: SBS 2003 R2 Std.
CPU/Ram: Intel Xeon 3065 / 4GB RAM
Manufacturer/Model: HP ProLiant ML310

Comment:

Hello all, I'm new to this forum and relatively new to SBS, so any help would be greatly appreciated.
I am running a SBS system with about 20 static desktops and 2 or 3 mobile laptops. All our desktops are XP pro machines connected to the domain and internet traffic is routed the SBServer, but the laptops connect wirelessly directly to the router.
We have recently changed ISP, and our XP machines can no longer connect properly to various sites such as Google Adwords, Gmail and BT Yahoo mail. One of our laptops has Vista, and this is the only machine which views the sites correctly.
I am most confused. Does anybody have any suggestions? Thanks very much.
Simeoni.

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Response Number 1

Name: wanderer
Date: October 3, 2008 at 14:32:50 Pacific

Reply:

You need to update the information in the forwarders tab in DNS server. It points to your old isp and needs to point to your new isps dns servers.

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Response Number 2

Name: Simeoni
Date: October 4, 2008 at 12:26:18 Pacific

Reply:

Thanks very much for your response. You may have saved my ass. I'll try that on Monday.
Simeoni.

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Response Number 3

Name: wanderer
Date: October 5, 2008 at 15:22:08 Pacific

Reply:

Make sure your lan clients are pointing to the ms dns server and not the router/isp dns server.

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Response Number 4

Name: Simeoni
Date: October 6, 2008 at 00:19:25 Pacific

Reply:

OK, checked both of those, and both are set correctly, but still no dice. DNS forwarders tab has new ISP's domain name servers, and all LAN clients have default gateway and preferred dns server set as the SBServer. I just don't get it. Thanks very much for your responses wanderer. Do you or anyone else have any other suggestions? Your help is very much appreciated.
Simeoni.

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Response Number 5

Name: wanderer
Date: October 6, 2008 at 13:15:02 Pacific

Reply:

what happens when you ping yahoo.com from the server?
what happens when you ping yahoo.com from a workstation?

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Response Number 6

Name: Simeoni
Date: October 7, 2008 at 04:41:57 Pacific

Reply:

Both work. The client ping is just a couple of milliseconds slower.
Server:
Pinging yahoo.com [206.190.60.37] with 32 bytes of data:
Reply from 206.190.60.37: bytes=32 time=112ms TTL=54
Reply from 206.190.60.37: bytes=32 time=113ms TTL=54
Reply from 206.190.60.37: bytes=32 time=111ms TTL=54
Reply from 206.190.60.37: bytes=32 time=113ms TTL=54
Ping statistics for 206.190.60.37:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 111ms, Maximum = 113ms, Average = 112ms
Client:
Pinging yahoo.com [206.190.60.37] with 32 bytes of data:
Reply from 206.190.60.37: bytes=32 time=114ms TTL=53
Reply from 206.190.60.37: bytes=32 time=115ms TTL=53
Reply from 206.190.60.37: bytes=32 time=114ms TTL=53
Reply from 206.190.60.37: bytes=32 time=113ms TTL=53
Ping statistics for 206.190.60.37:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 113ms, Maximum = 115ms, Average = 114ms
Simeoni.