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Old 01-31-2008, 04:25 PM   #1 (permalink)
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Default Users not able to sync

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I'm just now learning to admin BES and wanted to know a general list of things you guys check when one user or multiple users aren't able to sync with Exchange; specifically when they have been working fine before and no party is aware of any changes made on the phones or the server.

Also, has anybody gotten BES to work when an Exchange server is in a remote location (for example a BES server in America while the Exchange server is in Europe)?
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Old 01-31-2008, 05:54 PM   #2 (permalink)
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That can work but the ping times are going to the root cause of your issue. MAPI can only handle 35MS or less ping times, once it gets over 100MS the BES will be unpredictable. If this is your current situation then you need the BES local to the Exchange or upgrade the connection to lower ping times. There is no way around it. It's not a limit of the BES but of MAPI.
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Old 01-31-2008, 10:51 PM   #3 (permalink)
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That has to be the problem. Seems the users starting having problems right around the time those cables were cut in the Mediterranean sea (see: http://www.voanews.com/english/2008-01-31-voa63.cfm).

Right now we're seeing latency average 180-190ms between the BES and Exchange servers. Since traffic has come to a crawl out there, I'm sure it's contributing to higher latency numbers than before.

Is there a better solution for this besides moving or adding another Exchange server stateside?
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Old 01-31-2008, 11:25 PM   #4 (permalink)
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Not only is there not a better solution; but your only solution is to get the BES & Exchange server closer together.
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Old 02-01-2008, 04:31 AM   #5 (permalink)
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ok, so can the Blackberry server be moved to Europe where the Exchange server is and still push messages to Blackberries in the states? The reason the Blackberry server is in the states is because none of the users in Europe have a use for Blackberries (and I doubt they can get Blackberry Enterprise service where they are).
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Old 02-01-2008, 05:21 AM   #6 (permalink)
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Quote:
Originally Posted by snowbyrd98 View Post
ok, so can the Blackberry server be moved to Europe where the Exchange server is and still push messages to Blackberries in the states? The reason the Blackberry server is in the states is because none of the users in Europe have a use for Blackberries (and I doubt they can get Blackberry Enterprise service where they are).
Yes, a BES in Europe can support US devices, particularly if the only Exchange server is in Europe.

I would also assume that your European users CAN get BES data plans where they are, I've never heard of an EU country outlawing GPRS, and RIM has a BB services across Europe.
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Old 02-01-2008, 09:40 AM   #7 (permalink)
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a little update on this. The users are able to get new messages, but two of the users are showing over 100 messages unread on their blackberry when there are only 15-20 unread in Exchange. When new e-mail comes in, it works just fine. One of the users was e-mailing me back and forth from her device last night just fine. Is this related to the latency issues? If it is, why are only 2 of the users seeing this problem?
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Old 02-01-2008, 10:19 AM   #8 (permalink)
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If it is just unread marks that are replicating sporadically then that is "by design", they are done whenever the BES has "idle" time. At least that's my understanding of things.
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Old 02-01-2008, 10:37 AM   #9 (permalink)
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Quote:
Originally Posted by snowbyrd98 View Post
ok, so can the Blackberry server be moved to Europe where the Exchange server is and still push messages to Blackberries in the states? The reason the Blackberry server is in the states is because none of the users in Europe have a use for Blackberries (and I doubt they can get Blackberry Enterprise service where they are).
Just make sure you call RIM when you decide to change the SRP host that your BES connects to as they'll have to work their magic so it'll work. Once an SRP connects to an srp host / it is bound to that host.

FYI there are 3 hosts ... NA, UK, AP (the rest are all aliases to these)
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