ISA 2006 outbound (inbound?) problems

Posted on 2009-02-17
Last Modified: 2012-06-27

On company network I just suddently can't use remote desktop to connect to RD clients on the public side of my ISA. If I log on the ISA server itself, I can remote desktop fine.

Futhermore I have a couple of programs that use tcpip to connect to PC's on the internet, these programs doesn't work either.

I've also tried using IP's (to see if it was a DNS problem); but it's still the same.

All inbound seams normal (our webservers etc).

I haven't changed anything on the ISA server for months and have no clue why this just suddently happen.

When I logged on my ISA server, I could see it has been rebooted due to an important Windows Update .. but as far as I can see, the last update is 7 days old and my problem just started 2 days ago.

HELP! :o)
Question by:M_O_J_O
    LVL 14

    Expert Comment

    Looks like you have a Firewall policy in place blocking or not allowing outbound access to non web proxy protocols.

    You can test this by creating a new firewall policy to allow RDP outbound to "All Users" users group. Make sute this rule is on top of the rule chain.

    It will also help if you would copy the ISA log outputs here. (Monitoring > Logs tab)


    Author Comment

    Hi Raj,

    Please notice it's not only RD it's some of my tcpip programs too.

    Well I have a rule to allow all outbound, so I can't see what should prevent RD from outbound.

    I've attached a xslx of the log, please notice that I've changed all external IPs for security reasons.The adress I'm trying to connect to is

    Thx for your help so far.


    LVL 14

    Expert Comment

    I don't see any packets coming back from on your log. Is your allow all rule at the top of the rules table. Can you copy the rule details, interface configurations of ISA1 and also the network relationships pleas.


    Author Comment

    Yeah I don't get any packets back. If I have "allow all outbound" shouldn't I be able to RD out of my network?

    Yes the rule is at top.

    I've attached copy of rule and I'm not sure where to copy interface config and network relation.

    I don't know why this suddently happen - I haven't touched the ISA for months and it stopped working 2-3 days ago.




    Accepted Solution

    Hmmmm STRANGE .... now suddently everything works perfectly again ... hmmm.


    I will let this case be open for a couple of days ... thank you for your help so far.



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