ActiveSync working intermittently
Posted on 2014-04-28
ActiveSync is not working consistently with or without BES10 for supporting iPhones, Androids, BlackBerry's. When configuring the phones directly through ActiveSync, typically email will stop being received by the smartphones sometime between 5 and 6 PM and then start being delivered again sometime between 8 and 9 AM. Often, no email will deliver to the smartphones over the weekend and then will start again Monday morning. When connecting them through our BES10 test server, it will pull down the initial request and then work up until between 5 and 6 PM the first day and then stop working altogether. In either configuration, email can be sent successfully all day long and all calendars, contacts, tasks, and notes update as normal. The logs are clean.
Up until now, we've been able to get away with not having it work properly because we have primarily rolled out BlackBerry's running OS7 over the past few years and connected them to a BES. However, we need to move to BES10 as soon as possible and start rolling out a mix of alternate devices.
The ActiveSync connectivity tests are successful, EXCEPT, the last step where an initial sync to the Inbox folder is attempted. It returns that the operation has timed out. I have modified the firewall timeout values to be at 20 minutes but it hasn't made a difference. Any help would be much appreciated.