Reforger

Q: Losing network or internet connection after sleep/wake

I've created this as a new thread as it seems to be more prevalent with Mavericks and the very last update to ML but the problem has been around a while. It does seem to affect all types of Mac though from the other threads I have read and posted to.

 

The problem is essentially this: Intermittently, after a system sleep, the Mac appears to have no network connectivity (local and internet) and for a while the only reliable solution was to force the renewal of the DHCP lease or turning WiFi off and on again, after which the network would be restored.

 

There have been several theories postulated and a number of fixes, such as the DHCP renew, suggested but none of them have lasted for long but I now think I have this fixed as the following been 100% stable on my Mac Pro with wired ethernet connection for the last two weeks with no recurrences. I see no reason why this would not work on other Macs or connection types.

 

The problem seems to lie in the automatic location setting in the network settings, so here's what I did...

 

  1. Network settings - Location - Edit Locations
  2. Add a new location .. "Home" for example
  3. With home selected, click the cogwheel below the network services and choose "Set Service Order"
  4. Reorder the services so your preferred connection type is at the top
  5. After that, select each service in turn (assuming you have a few - like Bluetooth PAN etc)
  6. Make the services you are not using inactive
  7. Apply

 

Please post a reply if this works for you - it's been dragging on far too long and needs sorting out by Apple but if this is a good workaround for people then it will certainly do for now.

Mac Pro (Mid 2010), OS X Mavericks (10.9)

Posted on Nov 7, 2013 11:58 PM

Close

Q: Losing network or internet connection after sleep/wake

  • All replies
  • Helpful answers

Previous Page 2 of 13 last Next
  • by m@rk_o,

    m@rk_o m@rk_o Nov 14, 2013 11:38 PM in response to Reforger
    Level 1 (0 points)
    Nov 14, 2013 11:38 PM in response to Reforger

    Deleting the system configuration files was unsuccessful. However, following the instructions in the original post + having booted to safe mode (saw this mentioned somewhere, dont know if it is necessary) I created a new location setting wlan first in order and voilà! Now it has worked ok so far. Let's see how for how long. What I didnt do was disable the other service (LAN). Anyway, thanks a lot for this tip. I thought this kind "features" were reserved only for Windows. A real nerve wrecker.

     

    Slightly off topic: if you go to advanced settings in network and save a password for a specified router, is it still possible to edit that entry somehow? I accidentally mispelled the name but could not edit it anymore, only delete and recreate was possible.

  • by MHTSOSMAN,

    MHTSOSMAN MHTSOSMAN Nov 15, 2013 2:21 AM in response to Reforger
    Level 1 (0 points)
    Nov 15, 2013 2:21 AM in response to Reforger

    Today i had a self assigned IP after a week since i change the automatic location to HOME. The time machine crashed and back up failed. I don't know what to do. Now the time machine says sparsebundle is in use . The hard disk time machine back up is a an ethernet hard disk.

  • by Reforger,

    Reforger Reforger Nov 15, 2013 6:15 AM in response to MHTSOSMAN
    Level 1 (0 points)
    Nov 15, 2013 6:15 AM in response to MHTSOSMAN

    You may need to disconnect completely from the server on which your sparsebundle is sitting to break the link and then go through the process of setting up time machine again choosing the same network location. It should hopefully recognise the sparsebundle and sort itself out. Worst-case scenario would be to delete the sparsebundle from the network drive completely and run a new full backup.

  • by satcomer,

    satcomer satcomer Nov 15, 2013 12:30 PM in response to Reforger
    Level 4 (1,110 points)
    Nov 15, 2013 12:30 PM in response to Reforger

    I have read on the internet if you have a router that is older it may not support IPv6. WARNING if you are using IPv6 don't do this hint because it's for only older wireless routers that don't support IPv6.

     

    So go into System Preferences->Netowrk, Airport section. In Airport click on the 'Advanced' button and in the TCP/IP mini-tab in the 'Configure IPv6' and use the toggle bar to 'Link-local only'. Then make sure you click the OK button and it spits you out to the main Network pane click the 'Apply' button to save this configuration.

  • by m@rk_o,

    m@rk_o m@rk_o Nov 16, 2013 11:28 AM in response to Reforger
    Level 1 (0 points)
    Nov 16, 2013 11:28 AM in response to Reforger

    Although wireless works much better now than before I created the new location, it still drops the connection when going to sleep. After having dropped the connection, the router is no longer visible in the list.

  • by s_w_i_t_t_e_r_s,

    s_w_i_t_t_e_r_s s_w_i_t_t_e_r_s Nov 18, 2013 9:53 AM in response to Reforger
    Level 1 (5 points)
    Desktops
    Nov 18, 2013 9:53 AM in response to Reforger

    I have a new Macbook Air running Mavericks and new 802.11ac Airport Extreme router.

     

    My problem is that the MBA drops the internet connection after waking from sleep. I tried the solution offered by the OP, but it didn't work.

     

    In my case, here's what I have to do to get a connection again. I open the Network preference pane, and then choose "Assist me..." and then "Diagnostics". Invariably it will show a green light beside Wi-Fi, Wi-Fi Settings and Network Settings. I have 5 bars showing in the WiFi menu bar icon. But ISP, Internet and Server will be yellow.

     

    When I go through the steps prompted by the wizard, the ISP/Internet/Server lights turn green on the third screen where I select the wireless network I want to join.

     

    I'm not sure if this is the same problem described here, or a different one? Is this what you are all experiencing?

     

    It seems as if it's connecting to the WiFi network when it wakes from sleep, but losing the internet connection?

     

    I'm going to start a new thread in case this isn't the same problem.

  • by scottfitzroy,

    scottfitzroy scottfitzroy Nov 18, 2013 10:09 AM in response to Reforger
    Level 1 (0 points)
    Nov 18, 2013 10:09 AM in response to Reforger

    Update: My connection is working now, and I don't know why. I removed the folder from librarysystem preferences, I re-inputted all the information from the original thread here in network (new location, new set order, make inactive etc) and nothing as I mentioned above worked right away, but after a few days it suddenly started connecting. The ONLY other thing I did in this time was I went off site with my Air. I left the house and it was in my bag as I ran some errands which I hadn't done since before Mavericks download, and it started connecting after that. It sounds weird I know but it seems somehow the system had to disconect from the server area in order to work again. I couldn't tell you whether it is simply that as a quick fix or it was a combination of that plus one of the other fixes from here, but it has been a five days it all works perfectly again. We will see how long it lasts but my recommendation is to do all of the above AND go off site - see if it works for you too.

  • by MarkH356,

    MarkH356 MarkH356 Nov 18, 2013 2:12 PM in response to scottfitzroy
    Level 1 (35 points)
    Nov 18, 2013 2:12 PM in response to scottfitzroy

    You might be on to something there. I was still having a few drop outs from sleep after setting up the new location, but having taken the computer into work and connected it to the work network, it now doesn't drop out either at work or when I take it back home. Maybe those still having problems with drop outs after setting a new location could try connecting their laptops to a public, work or friends wifi network and see if this fixes the problem.

  • by s_w_i_t_t_e_r_s,

    s_w_i_t_t_e_r_s s_w_i_t_t_e_r_s Nov 18, 2013 2:22 PM in response to MarkH356
    Level 1 (5 points)
    Desktops
    Nov 18, 2013 2:22 PM in response to MarkH356

    Unfortunately I have taken my Macbook Air out and about several times and connected to other networks, and I still have the problem.

  • by scottfitzroy,

    scottfitzroy scottfitzroy Nov 18, 2013 2:45 PM in response to Reforger
    Level 1 (0 points)
    Nov 18, 2013 2:45 PM in response to Reforger

    Did you do the other steps listed in this thread? As mentioned I did them all, not sure which or what helped but it may be a combination of them, or them all. It's the only other thing I can think of, that and if applecare still comes back with something I will let you know. Their engineers have heard all about this problem they tell me, and are working on a fix..

  • by Anteeker,

    Anteeker Anteeker Nov 19, 2013 2:45 AM in response to Reforger
    Level 1 (0 points)
    Nov 19, 2013 2:45 AM in response to Reforger

    Hope Apple fixes this issue.  I just purchased a new iMac a month or two ago.  Everything worked like a charm until I downloaded Maverick.  Since then, I'm having the same problem of not being able to connect to the internet after waking from the sleep mode.  All my settings look like what the posters have recommended.  At first I was blaming the cable company, but finally realized I just have to restart the computer to immediately reconnect to the internet.  Also have to hit the Time Machine to Backup Now, as backup shows as delayed.  The last backup time seems to correlate to when the computer went to sleep.  Frustrating since I was hoping switching to an Apple would be better than my ongoing problems with Windows and my Dell.  If it's a known problem, I'll check back to see if there's a software update or fix from Apple.

  • by Anteeker,

    Anteeker Anteeker Nov 19, 2013 3:39 AM in response to Anteeker
    Level 1 (0 points)
    Nov 19, 2013 3:39 AM in response to Anteeker

    Just as an aside, I was wondering if enabling power nap in Energy Saver preferences would solve the problem.  I don't know much about power nap, other than what I've read on Apple, but it sounds like it stays connected to the internet.

  • by scottfitzroy,

    scottfitzroy scottfitzroy Nov 20, 2013 5:18 PM in response to Reforger
    Level 1 (0 points)
    Nov 20, 2013 5:18 PM in response to Reforger

    Alas it didn't last, after one week of working the wifi connection stopped today. I am back to manually connecting. I will go offsite again to see if it works etc, but back to the drawing board, no fix is permanent I am afraid, yet.

  • by AngryTurk,

    AngryTurk AngryTurk Nov 21, 2013 7:12 AM in response to scottfitzroy
    Level 1 (0 points)
    Nov 21, 2013 7:12 AM in response to scottfitzroy

    This has to be router related.  Or at least some configuration in there.  My home router is the problem which is a new mac daddy network beast the Netgear R6250.  Drops ALL the time.  Checked everything from MTU size  (1500) to whatever else I can configure there.  Updated firmware, etc... the router runs DHCP.

     

    I have an older Netgear router in my office work group... no problems.  I connect and stay connected the whole time I'm at work.  8+ hours no drop, come home 10- minutes and dropped. 

     

    I am on a mixed wireless on both connect to 5g n.  My thought could be interference from the other crap in my house of which I have a lot... 2 apple tvs, several ipads, iphones, smart tvs, sirius xm, connected blu rays, xboxes... wow that all sounds scary that all my appliances are online...  I will try to power down all devices and test my theory... and report back.

     

    I have a 13" so a wired connection is not an option...

  • by scottfitzroy,

    scottfitzroy scottfitzroy Nov 21, 2013 7:18 AM in response to Reforger
    Level 1 (0 points)
    Nov 21, 2013 7:18 AM in response to Reforger

    It is router related but it has to start with Mavericks - it has to be Mavericks related also, as this wasn't happening before we downloaded the new operating system, they went in tandem, to the day. Obviously Mavericks isn't capable of continuous connection recognition with some routers but I want apple to fix it instead of paying for other new equipment all over my house, personally. I'm going to call apple support this week for an engineeer update...

Previous Page 2 of 13 last Next