1. sthorntonca's Avatar
    Noticed today Macbook battery draining insanely fast, fan running full. Led me to this post.

    https://discussions.apple.com/thread...art=0&tstart=0

    Sure enough, I had Tunmgr in background running, 99.5% cpu. Not sure what the process is for, gather it may be for remote file sharing or something of the sort?

    Posted via CB10
    Chi Cong Nguyen likes this.
    06-09-13 10:08 AM
  2. SCrid2000's Avatar
    Is tunmgr related to Link somehow?
    Tune Manager?
    06-09-13 10:34 PM
  3. sthorntonca's Avatar
    The only thing I've found suggests it's RIM Tunnel Manager? http://processchecker.com/file/tunmgr.exe.html

    Haven't found a clear description of what purpose this background process serves... or if it's even necessary. All I know is that, it seems to be a system hog for some reason, and decimates the laptop battery life if left running.

    Posted via CB10
    06-10-13 06:33 AM
  4. go1ndr's Avatar
    From all of the hacker sites, tunmgr.exe appears to be legit and is the BlackBerry Link Communication Manager basically running everything that has to do with communication. There sure isn't much on the sites about it other than its safe. Are you sure its not another app conflicting wth something thats causing it to be a system hog?
    06-10-13 08:12 PM
  5. sthorntonca's Avatar
    No idea. Could be other conflicts I suppose. No idea how to fish that out. Happened again today after plugging in. Didn't even open Link, but after having plugged in via usb for a bit of charge, noticed fan blowing loud, and sure enough Tunmgr eating 90+%.

    Posted via CB10
    06-10-13 08:41 PM
  6. phuna's Avatar
    I got the same problem with tunmgr, it use too much CPU, anyone has solved it yet?
    06-24-13 08:56 AM
  7. bvn007's Avatar
    Piling on. Same problem - 100% CPU (1 of 4 cores) consumption at idle with no BB10 activity (Link not running) on OS X 10.8.4, Mid-2011 MacBook Air.

    These 3 console messages keep appearing after quitting the "tunmgr" process via Activity Monitor:

    6/27/13 3:57:03.586 PM com.apple.launchd[1]: (com.rim.tunmgr[1522]) Exited with code: 255
    6/27/13 3:57:03.586 PM com.apple.launchd[1]: (com.rim.tunmgr) Throttling respawn: Will start in 10 seconds
    6/27/13 3:57:03.000 PM kernel[0]: BBPTP: Cannot Open Handle to /dev/rimtun - already opened by tunmgr?

    On the face of it, this seems like very sloppy programming. Is there a "rest of the story" here?
    06-27-13 03:58 PM
  8. sthorntonca's Avatar
    I had enough and ended up removing Link altogether and it still persisted...

    Had to go into Library>application Support and remove the blackberry folder there.

    Runaway process is gone at least. Hoping that the next time I need to transfer files / tunes a new version of Link addresses this hole. Else it'll be a re-install for the sake of transferring and wiping it out all over again.

    Posted via CB10
    06-28-13 02:34 PM
  9. phuna's Avatar
    Any solution to this problem? It's a very annoying to have cpu at > 90% and fan run at full whenever tunmgr is there in process list. Now I have to check Activity Monitor frequently to kill tunmgr if it runs, also don't know what starts it again after that.
    BTW, when I contact BlackberryHelp via Twitter about this problem, they said that my issue is complicated and I should contact carrier or network provider to investigate the solution. Sadly that option is not applicable for me as I did not buy Q10 from them. Anyone know how to contact Blackberry's software technical support directly?
    07-09-13 06:11 PM
  10. stefanbechen's Avatar
    Any solution to this problem?
    Yes, see <https://discussions.apple.com/thread/4957570?start=0&amp;tstart=0>

    I can replicate the issue when I sign out, then after a while the tunmgr eats up all CPU. Once you logged in, everything goes smooth.
    07-12-13 05:01 PM
  11. stefanbechen's Avatar
    Unfortunately that "solution" didn't last long. Had tunmgr trying to eat 99.99% this morning.
    Raised the issue with BBRY - this is a bad issue since that BBRY need to fix right away.
    jojo beaconsfield likes this.
    07-15-13 02:31 AM
  12. jarechu's Avatar
    Same problem here. Also MBA mid-2011 and MacOS 10.8.4. I have just second your thread un BB Forums as well.

    tunmgr eating up CPU - BlackBerry Support Community Forums
    07-15-13 05:29 PM
  13. sunetos's Avatar
    This has been killing my 2012 Macbook Air as well. So far I haven't had it happen in 24 hours by disabling the following option in Blackberry Link:

    "Open Blackberry Link when a device is connected"

    Obviously 24 hours isn't long enough to be certain of a fix, but it's promising.
    07-21-13 04:35 PM
  14. martijn44's Avatar
    Unfortunately that didn't work for me. I still have to kill tunmgr manually like every hour. Very annoying!
    08-08-13 04:40 AM
  15. pwerry's Avatar
    Remove the BB link app and then remove /Library/Application Support/BlackBerry. You should also remove all the blackberry related items in /Library/LaunchAgents and /Library/LaunchDaemons, otherwise your startup sequence will throw errors (safely ignored of course, but still show up in the log). While you're at it, might as well drop every com.rim.* file from /Library/Preferences too, although not necessary if you want to keep your settings after a re-install.

    After removing RIM's stuff my machine is running very fast with a cpu temp of approx 45 C, down from 90 C, and fan running at 2000 rpm, down from 5500 rpm.
    Last edited by pwerry; 08-12-13 at 05:36 AM.
    08-08-13 05:23 PM
  16. martijn44's Avatar
    This has been killing my 2012 Macbook Air as well. So far I haven't had it happen in 24 hours by disabling the following option in Blackberry Link:

    "Open Blackberry Link when a device is connected"

    Obviously 24 hours isn't long enough to be certain of a fix, but it's promising.
    Update: After rebooting my mac with that option turned off the issue hasn't returned so far.
    08-14-13 03:21 PM
  17. sthorntonca's Avatar
    Same here. I didn't see anything mentioned in the release notes for the latest Link update, but the issue hasn't popped up since.


    Posted via CB10
    08-16-13 04:54 PM
  18. Mister Sir's Avatar
    Same thing is happening with me. This is one of several reasons why I will be dumping my Z10 to go back to Apple when the iPhone 5S comes out.
    09-04-13 02:13 PM
  19. Rascallie's Avatar
    Thanks for the fix guys! Solved my issue too.
    09-16-13 10:14 AM
  20. martijn44's Avatar
    OMFG.. just like that it returned. Time to uninstall BlackBerry Link. And put my Q10 on eBay while I'm at it.
    10-14-13 05:49 AM
  21. TioPepe78's Avatar
    tunmgr.exe is the service that let you access your computer files through your phone, I have the same issue, I go every day to the task manager to end the process but I lose the capability to see my computer files

    Warning re: Link / Tunmgr decimating battery-tunmgr.png

    Blackberry must repair this ASAP.
    Attached Thumbnails Warning re: Link / Tunmgr decimating battery-tunmgr.png  
    jojo beaconsfield likes this.
    10-18-13 11:02 AM
  22. Sergeant_Im's Avatar
    tunmgr.exe is the service that let you access your computer files through your phone, I have the same issue, I go every day to the task manager to end the process but I lose the capability to see my computer files

    Click image for larger version. 

Name:	tunmgr.png 
Views:	16 
Size:	137.8 KB 
ID:	211591

    Blackberry must repair this ASAP.
    this problem happens not only on Macs, but Windows too. Crappy piece of crapware. The whole BB Link programming team needs to get fired.
    10-26-13 08:36 AM

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