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ISA server and entire network unable to access internet

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ISA server and entire network unable to access internet - 1.Mar.2008 10:22:10 PM   
militarymedic22

 

Posts: 12
Joined: 17.Oct.2005
Status: offline
I have a fresh install of W2K3 server and Isa 2006.  (I don't mean to toot my own horn but I have setup this scenario more times than I can count without problems... until now)  I was away for business for the past 11 months so possibly I missing some vital step.
Nothing fancy about the setup, default W2k3 initial domain settings, internal nic on ISA is setup correctly, external nic is grabbing a IP from a ISP (unfortunalety a DHCP address)  Of course before the ISA install the machine can access the internet just fine.  In the past I have been able to get by with the basic config (usually from pointers from this site) but for this install I have tried everthing I can think of in regards to the ISA machine and the rest of the domain accessing the internet.  I even went to the point of re-defining a network config and select allow unrestricted internet access.  Before and after any browser opened automatically goes to a page cannot be found.  ISA logs show everything is allowed and nothing denied.
Could somebody maybe point out some ideas of common problems which this may relate to? 
Thanks
Jeremy
Post #: 1
RE: ISA server and entire network unable to access inte... - 2.Mar.2008 4:21:56 AM   
elmajdal

 

Posts: 6022
Joined: 16.Sep.2004
From: Lebanese in Kuwait
Status: offline
Have you installed Win2k3 Sp2 ?

if yes then check this : http://support.microsoft.com/default.aspx?scid=kb;EN-US;927695

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Tarek Majdalani

Windows Expert - IT Pro MVP
Facebook : https://www.facebook.com/ElMajdal.Net

(in reply to militarymedic22)
Post #: 2
RE: ISA server and entire network unable to access inte... - 2.Mar.2008 11:22:11 AM   
militarymedic22

 

Posts: 12
Joined: 17.Oct.2005
Status: offline
I checked the enableRSS and set it to 0 as the article instructed but still no luck. 

(in reply to elmajdal)
Post #: 3
RE: ISA server and entire network unable to access inte... - 3.Mar.2008 3:11:28 PM   
ModernAge

 

Posts: 37
Joined: 30.Jan.2008
Status: offline
Jeremy,

Which network template did you select when setting up ISA?  Are you using Enterprise or Standard and what are you using for a default gateway on your internal workstations?  Are the internal workstations SecureNAT or actual Firewall client workstations?  Also make sure you only have one default gateway referenced on the ISA server itself, which should be an Internet address after a successful DHCP assignment.


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Dave Durand
Phoenix, Arizona

(in reply to militarymedic22)
Post #: 4

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