Activesync drains battery
Question asked by Kelli Sterley - August 19, 2015 at 8:53 AM
Unanswered
I have had two users switch from iphones to androids lately.  Since they have moved platforms their activesync (using exchange on the phones) has constantly been checking for mail.  The progress bar never stops.  
 
It is only happening to these two users, I have others using iphones and androids but no one else is having this issue.  Is it a bug when switching platforms?  Last resort if deleting the user and recreating them but I don't want to try that unless it's the last resort.  
 
thanks for any help -
 
Kelli 

6 Replies

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0
Do you have IMAP IDLE turned on?
 
IMAP IDLE
Enabling IMAP IDLE in SmarterMail
 
If not, then the phones are constantly polling the server and using precious battery resources.
 
With IMAP IDLE turned on, the SmarterMail server pushes new messages out to the phone as they are received.
 
For more information on the benefits of using IMAP IDLE, see: http://www.isode.com/whitepapers/imap-idle.html
Bruce Barnes
ChicagoNetTech Inc
brucecnt@comcast.net

Phonr: (773) 491-9019
Phone: (224) 444-0169

E-Mail and DNS Security Specialist
Network Security Specialist

Customer Service Portal: https://portal.chicagonettech.com
Website: https://www.ChicagoNetTech.com
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Web and E-Mail Hosting, E-Mail Security and Consulting
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Robert Emmett Replied
Employee Post
Kelli, if you have Upgrade Protection, I would recommend upgrading to SM 13.x or 14.x.  There were fixes made to the Exchange ActiveSync protocol.  Specifically, if these Android devices are Samsung, Samsung has a known issue where they are sending malformed ActiveSync requests.  SM was responding with a "bad command" response, but the Samsung devices would constantly resend the bad command.  There is code in the latest versions of SM to workaround this specific Samsung bug.  Additionally, as I said, there have been other ActiveSync-related improvements and bug fixes.
Robert Emmett
Software Developer
SmarterTools Inc.
(877) 357-6278
www.smartertools.com
0
I will be doing the upgrade however I still wonder why I have only two phones that are experiencing this issue.
 
User 1:
Had an iPhone (5S) and upgraded to an Android (Samsung Galaxy S6), the active sync is constantly running.
 
User 2: 
Had an iPhone (5S) and upgraded to an Android (Samsung Galaxy S6), the active sync is constantly running.
 
 
User 3:
Had an iPhone (5S) and upgraded to an Android (Samsung Galaxy S6 Edge), the active sync is running just fine.
 
I took user 1 and created a new email account for him, forwarded all his incoming mail to this new address and there have been no issues with the active sync for the new account.  I guess my work around is to remove the bad email and recreate it?  
0
Did you update your installation to 14.2.5711, released Thursday last?
 
It resolves several ActiveSync issues:
 
 
  • Fixed: Performing an Exchange ActiveSync search now searches all mailbox folders if a CollectionId is not specified.
  • Fixed: Adding and modifying a message in the same sync command in Exchange Web Services no longer adds the message twice.
  • Fixed: An event deletion now properly syncs using Exchange Web Services in the scenario that the user receives an event cancellation message and then deletes the event in webmail.
  • Fixed: The ItemNotFound response from Exchange Web Services now includes all required fields.
  • Fixed: The type of a calendar invite message is now properly passed to the client when using Exchange Web Services.

 

Bruce Barnes
ChicagoNetTech Inc
brucecnt@comcast.net

Phonr: (773) 491-9019
Phone: (224) 444-0169

E-Mail and DNS Security Specialist
Network Security Specialist

Customer Service Portal: https://portal.chicagonettech.com
Website: https://www.ChicagoNetTech.com
Security Blog: http://networkbastion.blogspot.com/

Web and E-Mail Hosting, E-Mail Security and Consulting
0
I was able to install 14.2.5711 and the two phones STILL continue to check constantly for mail when set to push.  So the update did not fix my issue.  I'm at a loss for what to try next.  They are using the Samsung Galaxy S6 thru Verizon
 
I have:
deleted the user and recreated them - didn't fix
turned off activesync and back on - didn't fix
updated to the latest version - didn't fix
 
I have two other phones that are identical and they are not experiencing these issues.  I am going to add the user to my personal phone (also a Samsung Galaxy S4 thru Sprint).  
0
Robert Emmett Replied
Employee Post

Kelli,

One thing that you may want to try is to completely remove the ActiveSync account from the phones.  Once that is accomplished, remove those phones from the users' synchronized devices through the web interface (Settings | My Settings | Synchronized Devices).  Now re-add the ActiveSync accounts to the phones.

If this fails to fix the issue at hand, I would recommend you open a support ticket.

Robert Emmett
Software Developer
SmarterTools Inc.
(877) 357-6278
www.smartertools.com

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