Hi.
We are running Exchange 2010 and Astaro 8.301 with WAF activated.
For more than half year no problem occurred regarding the activesync functionality of about 20 handhelds (android and ios). We now reached more than 40 handhelds and the first users are reporting sync delays.
The WAF Log shows following:
2012:03:21-15:44:55 fw01 reverseproxy: [Wed Mar 21 15:44:55 2012] [error] [client 172.***.***.113] (70007)The timeout specified has expired: proxy: error reading status line from remote server 192.***.***.4:443
2012:03:21-15:44:55 fw01 reverseproxy: [Wed Mar 21 15:44:55 2012] [error] [client 172.***.***.113] proxy: Error reading from remote server returned by /Microsoft-Server-ActiveSync
First I suspected one of the throttling policies on the exchange, but disabling ($null) all policies didn't change anything. Furthermore I didn't find any suspect event logs on the exchange system. Replacing the virtual Webserver by a simple portforwarding solves the issue. therefore i am pretty sure, that the ASG is the cause of our problem.
Does anyone have a hint to troubleshoot this?
cheers
Luis
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