wesleyh84
Level 1 (10 points)

Q: Internet connection sometimes lost after waking from sleep

I sometimes loose my internet connection after waking from sleep. Here is a part from the system log which might be relevant:

 

It's an imac mid 2011, with mountain lion 10.8 and all updates. 16GB ram. 27 inch. 2.7Ghz quad core intel core i5.

 

The only thing that works is unplugging the ethernet cable and inserting it again.

 

Mar 27 14:43:02 iMac-van-wesley kernel[0]: /drv/ MacModule.cpp:304   powerStateWillChangeTo: flags=2 stateNumber=3

Mar 27 14:43:02 iMac-van-wesley kernel[0]: /drv/ MacModule.cpp:305   powerStateWillChangeTo: found flag=kIOPMPowerOn (2)

Mar 27 14:43:02 iMac-van-wesley kernel[0]: /drv/ MacModule.cpp:304   powerStateDidChangeTo: flags=2 stateNumber=3

Mar 27 14:43:02 iMac-van-wesley kernel[0]: /drv/ MacModule.cpp:305   powerStateDidChangeTo: found flag=kIOPMPowerOn (2)

Mar 27 14:43:02 iMac-van-wesley kernel[0]: Previous Sleep Cause: 5

Mar 27 14:43:02 iMac-van-wesley kernel[0]: The USB device HubDevice (Port 1 of Hub at 0xfa000000) may have caused a wake by issuing a remote wakeup (2)

Mar 27 14:43:02 iMac-van-wesley kernel[0]: en1: 802.11d country code set to 'BE '.

Mar 27 14:43:02 iMac-van-wesley kernel[0]: en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140

Mar 27 14:43:02 iMac-van-wesley kernel[0]: The USB device BRCM2046 Hub (Port 1 of Hub at 0xfa100000) may have caused a wake by issuing a remote wakeup (3)

Mar 27 14:43:02 iMac-van-wesley kernel[0]: TBT W (1): 0 [x]

Mar 27 14:43:02 iMac-van-wesley kernel[0]: The USB device Bluetooth USB Host Controller (Port 1 of Hub at 0xfa110000) may have caused a wake by issuing a remote wakeup (3)

Mar 27 14:43:02 iMac-van-wesley kernel[0]: 9735.699239: performCountryCodeOperation: Not connected, scan in progress[1]

Mar 27 14:43:02 iMac-van-wesley kernel[0]: HID tickle 194 ms

Mar 27 14:43:02 iMac-van-wesley kernel[0]: en1: 802.11d country code set to 'BE '.

Mar 27 14:43:02 iMac-van-wesley kernel[0]: en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140

Mar 27 14:43:07 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 14:44:55 iMac-van-wesley kernel[0]: Sandbox: sandboxd(771) deny mach-lookup com.apple.coresymbolicationd

Mar 27 14:47:52 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 14:47:53 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 14:56:01 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 14:56:02 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 14:57:22 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 14:57:23 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 14:57:36 iMac-van-wesley kernel[0]: CODE SIGNING: cs_invalid_page(0x1000): p=795[GoogleSoftwareUp] clearing CS_VALID

Mar 27 14:58:44 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 14:58:45 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:02:29 iMac-van-wesley kernel[0]: Sandbox: sandboxd(816) deny mach-lookup com.apple.coresymbolicationd

Mar 27 15:03:27 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:03:29 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:04:48 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:04:50 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:06:08 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:06:10 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:07:28 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:07:30 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:08:49 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:08:51 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:10:09 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:10:11 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:11:31 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:11:33 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:12:52 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:12:54 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:14:16 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:14:18 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:15:37 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:15:39 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Mar 27 15:16:58 iMac-van-wesley kernel[0]: AppleBCM5701Ethernet:        0        0 timeoutOccurred: recovering from dropping link-down change interrupt

Mar 27 15:17:00 iMac-van-wesley kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2300,0de1,0300,4de1,0000]

Posted on Mar 27, 2013 9:26 AM

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wesleyh84

Q: Internet connection sometimes lost after waking from sleep

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  • Helpful answers

  • by BDAqua,

    BDAqua BDAqua Mar 28, 2013 12:10 PM in response to wesleyh84
    Level 10 (123,905 points)
    Mar 28, 2013 12:10 PM in response to wesleyh84

    Hi, sounds a bit like the Router/Modem or Cable, but...

     

    Make a New Location, Using network locations in Mac OS X ...

     

    http://support.apple.com/kb/HT2712

     

    10.7 & 10.8…

     

    System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.

     

     

    10.5.x/10.6.x/10.7.x instructions...

     

    System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.

     

    The interface that connects to the Internet should be dragged to the top of the list.

  • by sennos,

    sennos sennos Mar 31, 2013 10:41 AM in response to wesleyh84
    Level 1 (0 points)
    Mar 31, 2013 10:41 AM in response to wesleyh84

    This!

     

    It does not seem to be caused by any "Router/Modem or Cable" issue. The error recurs only after wake from sleep.

     

    The error is eliminated completely by resetting the interface  - until the next wake from sleep.

     

    Reset the interface either of the following ways):


         1) Running "sudo ifconfig en0 down" and then "sudo ifconfig en0 up" in the Terminal

    or

         2) Deactivating and then reactivating the interface from within the System Preferences

    or

         3) Unplugging the ethernet cable and then plugging it back in

     

    I've tried everything from changing the cable, rebooting in Safe Mode, using a different user account, deleting all network settings and reconfiguring all the interfaces after a reboot - to no avail. As soon as the machine is woken from sleep the issue recurs:

     

    Mar 31 18:37:42 BoxName kernel[0]: AppleBCM5701Ethernet: 0 0 timeoutOccurred: recovering from dropping link-down change interrupt

    Mar 31 18:37:43 BoxName kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,0300,0de1,0300,45e1,0000]

    Mar 31 18:45:36 BoxName kernel[0]: AppleBCM5701Ethernet: 0 0 timeoutOccurred: recovering from dropping link-down change interrupt

    Mar 31 18:45:37 BoxName kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,0300,0de1,0300,45e1,0000]

    Mar 31 18:46:54 BoxName kernel[0]: AppleBCM5701Ethernet: 0 0 timeoutOccurred: recovering from dropping link-down change interrupt

    Mar 31 18:46:56 BoxName kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,0300,0de1,0300,45e1,0000]

    Mar 31 18:48:14 BoxName kernel[0]: AppleBCM5701Ethernet: 0 0 timeoutOccurred: recovering from dropping link-down change interrupt

    Mar 31 18:48:16 BoxName kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,0300,0de1,0300,45e1,0000]

     

    ... on and on ...

  • by WZZZ,

    WZZZ WZZZ Mar 31, 2013 10:55 AM in response to sennos
    Level 6 (13,112 points)
    Mac OS X
    Mar 31, 2013 10:55 AM in response to sennos

    I haven't looked through all the logs you supplied so this answer might not be relevant, but when this happens to me, which it does randomly, I simply turn wifi off and back on again from the wifi icon in the menubar and I get wifi immediately. It's a simple fix if it isn't always happening. I've also noticed that if I do a full shutdown/startup, which can fix some glitches, it happens much less frequently afterward.