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Problem configuring ISA with Blackberry server - 13.Jun.2008 12:21:59 PM

vg_isa

Posts: 1
Joined: 12.Jun.2008
Status: offline

Hi everyone,

I've been looking at a solution for a couple of days now and i'm not able to find an answer, so i hope you guys can help me.

My Blackberry server is in my internal network behind the ISA server 2004.

I created an access rule :
Allow Port 3101 from my BES server to *.blackberry.net (srp address) for all users.

I saw a couple of discussions saying that it only needs that to work. However, it doesnt.

I received the following error :
Denied Connection - A non-SYN packet was dropped because it was sent by a source that does not have an established connection with the ISA Server computer.

So, my Bes server is able to send the 1st request to the srp.na.blackberry.net but not the second or third...

Initiated Connection at 23:05:18
Log type : Firewall service
Status : The operation completed successfully
Rule : Allow Blackberry
Source : Internal (x.x.x.x:2300)
Destination : External (srp.na.blackberry.com 204.187.87.33:3101)
Protocol : Blackberry

Denied Connection at 23:05:26
Log type : Firewall service
Status : A non-SYN packet was dropped because it was sent by a source that does not have an established connection with the ISA Server computer.
Rule : -
Source : Internal (x.x.x.x:4982)
Destination : External (srp.na.blackberry.com 204.187.87.33:3101)
Protocol : Blackberry

I know it's not an issue on my blackberry server because it works if it's not behind the ISA.

Thank you to help me with this huge problem!