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

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Q: Losing network or internet connection after sleep/wake

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  • by steelhead41,

    steelhead41 steelhead41 Mar 27, 2014 11:10 AM in response to antzcrashing
    Level 1 (0 points)
    Mar 27, 2014 11:10 AM in response to antzcrashing

    Running 10.9.2 on Mac Book Pro.  Turned Blue tooth off and that fixed the problem.

  • by antzcrashing,

    antzcrashing antzcrashing Mar 30, 2014 10:09 AM in response to Reforger
    Level 1 (0 points)
    Mar 30, 2014 10:09 AM in response to Reforger

    I created another, more focused thread on this issue, since the page1 info on this thread is confusing.  Let's continue the discussion here:

    https://discussions.apple.com/thread/6045281

  • by nikitkas,

    nikitkas nikitkas Apr 1, 2014 8:41 AM in response to Reforger
    Level 1 (0 points)
    Apr 1, 2014 8:41 AM in response to Reforger

    Words cannot describe how angry this problem makes me. How can world's largest tech company not been able to fix their biggest bug for this many months now?!?!

     

    All these forums are overflowing with the same **** problem: WIFI DOESN'T CONNECT AFTER COMING BACK FROM SLEEP ON MAVERICKS.

     

    How many thousands of people have to post the same godddamn problem for how long?

     

    And no, disconnecting Bluetooth doesn't work (even if it did, its not an acceptable solution). I took my MacBook Air to Apple store twice already and they cannot help either.

     

    aaaAAAAaAaaAAaaarrrrghhh, I'm going to go insane from this problem.

     

    I miss Steve.. he wouldn't let something like this go on for this long. Can a half a trillion dollar company pay attention to its own support forums or at least google "wifi-not-connecting-after-sleep-mavericks" and realize what incompetent company you have become?!

     

    I give you 30 more days, Apple. Afterwards we're going to FTC to try to start the biggest recall you've ever seen.

  • 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 Apr 1, 2014 9:23 AM in response to Reforger
    Level 1 (5 points)
    Desktops
    Apr 1, 2014 9:23 AM in response to Reforger

    Yes, this is incredibly frustrating. I appreciate the post with all of the potential solutions outlined, but unfortunately none of them really address the issue. I use a bluetooth keyboard and mouse with my Macbook Air because it's situated on a standing desk and connected to an external monitor in a dual monitor setup. It's impossible for me to use the built-in trackpad and keyboard, and it's a pain to use a wired keyboard/mouse because I frequently take the MBA out with me.

     

    This should just work.

     

    I submitted feedback to Apple. Maybe by 10.9.4 it will be fixed.

  • by Aikedo1925,

    Aikedo1925 Aikedo1925 Apr 4, 2014 4:17 PM in response to s_w_i_t_t_e_r_s
    Level 1 (0 points)
    Apr 4, 2014 4:17 PM in response to s_w_i_t_t_e_r_s

    Running Mavericks 10.9.2...iMac is less than two months old...Out of the box I never once lost a connection.  Three days ago I needed to shut down my iMac to unplug the machine.  Since I started it up everytime it goes to sleep for any extended period of time it loses it wi-fi connection.  If I turn manually turn off/on the wifi it regains the connection.  I'm also having email server connection problems.  Not sure if that's related but I never had those issues either prior to shutdown/re-start.  It should be noted this was the first time I totally powered down my new iMac.  Immediately after that all the problems started.  This is annoying and unacceptable if it's a OS issue or worse yet a hardware issue.

     

    I should also add that at the around the same time I did the power shut down I also downloaded an update for my wireless printer which actually did not function corrently after the updates.  I had to unistall the printer then re-install it (Epson XP-410).  I noticed else where that wireless printers may affect the wifi connection after sleeping.

  • by sandjensen11,

    sandjensen11 sandjensen11 Apr 5, 2014 5:18 AM in response to MarkH356
    Level 1 (0 points)
    Apr 5, 2014 5:18 AM in response to MarkH356

    I'm not sure if my problem is the same as the original issue here or the many similar ones. But I have fixed it so will relate:

     

    Recently upgraded to mavericks. But not THAT recently.

     

    Out of the blue my MacBook Pro kept dropping wifi connection, while using, not necessarily on sleep. Would take ages to find the connection. And then it just got worse and worse, and when I tried to connect, a dialogue box told me I could not connect and to run diagnostics. No use that. Then I was asked for my password for the wifi... and although correct password entered, it did not take. Over and over again. Going to network connections I had this new dialogue about Thunderbold Bridge, never seen it before so did some searches and it appeared other users were having problems with wifi with this. So I disabled it, no change. I followed some suggestions: trashed SystemConfiguration folder fixed permissions several times (and of course rebooted etc). On the phone with Apple we reset PRAM and SMC  - (and for some reason when setting SMC my green light on the power cord does not change as it should.. but never mind I hope). We deleted location, added new location etc etc. Tried it in Safe Mode and it seemed to work, although wifi VERY slow, but not working in a test user mode. Then the Apple care person got me to some new grey blank screen (sorry don't remember what it was) with internet password and Network login - but it would not accept my password. So he said I'd changed my password, which I hadn't.(we had other macs on this network doing just fine). We tried my IPod, and although it was working fine, once we 'forgot' the network, ti too would not accept the correct password.

     

     

    He couldn't do anything for me at that point so I rang my profider, Plus Net, who showed me how to reset the router to original password. He told me probably I needed to upgrade my software on iPod and Mac but both are as up to date as possible ( I have old iPod). As I was near the router with my mac, I noticed that the issue seemed to be working... whether it was the router reset or not I didn't know. The iPod too. Accepted password (same old one..) and did not drop wifi. Back in my office.... which is very close to the router, and there are no interferring objects inbetween... the same problem happened. Dropped connection. Wouldn't pick it up. But was fine if I was next to the router.

     

    Rang Apple. Finally got put through to a high level specialist including his direct number and email address. He suggested trying the delete keychain idea.  As I have so many I had to copy and save all these which took me an hour and a half, and he was due to ring the next day. After saving all my passwords etc, and now on long ethernet cable in my office, I scrolled through these pages here.

    I read about this:

    setup your non-Apple wireless router to only use 801.11g as it seems to be 801.11n that Mavericks struggles with. My router at home has both an "n" channel and a guest "g" channel. I don't get any drop outs when I connect via the guest channel, but do when trying to use the faster "n" channel.

     

     

    I went to my router and could find NO WAY to change this. It seemed set at 802.11b/g/n. BUT. I remembered from years ago a fix on another situation/computer/router: change the CHANNEL from automatic to a fixed channel. I chose Channel 1.

     

    Problem fixed.

     

    But WHY, and why I had a brief problem with the Ipod too, I don't know. As there have been absolutely no changes in our apartment in terms of what could be interfering - unless the neighbours are doing something. I'm not techincal so maybe someone here has an explanation.

     

    Well so far so good. After 8 hours and many grey hairs. Hope the fix stays, if it doesn't I'll be back...

  • by kevinstylus,

    kevinstylus kevinstylus Apr 6, 2014 7:42 AM in response to Reforger
    Level 1 (0 points)
    Apr 6, 2014 7:42 AM in response to Reforger

    Hi, I have a 3ghz iMac running Mavericks9.2  I'm using an Apple Airport/Time-macchine as my wifi Network router and have same sleep/no-network problem - so you can discount the A.N.OtherBrand hardware incompatibility.

     

    The new Location and resetting everything didn't work for me.

     

    The problem began for me when I installed MicrosoftOffice 2011 - but it could be co-incidence as there was an OS update around the same time. I haven't seen anyone on here with a newer Mac yet, is this an 'old mac forced obsolecence' thing?

  • by fireflymd,

    fireflymd fireflymd Apr 6, 2014 8:08 AM in response to kevinstylus
    Level 1 (4 points)
    Apple Watch
    Apr 6, 2014 8:08 AM in response to kevinstylus

    kevinstylus, I purchased a brand new iMac when Mavericks came out, incorrectly thinking it would be pre-loaded on the computer.  The computer still had Mountain Lion and I wish I had experimented with Mountain Lion before doing the upgrade to Mavericks.

     

    I have tried everything on this forum as well as contacting Apple Support, but the problem persists.  Oddly enough, it happens in waves and periodically.  Sometimes it connects just fine, then there are periods of time where I have to disconnect WiFi to reconnect.

     

    Lesson learned.  I will never upgrade again until a few weeks/months have gone by when all the kinks are apparent and worked out. 

  • by antzcrashing,

    antzcrashing antzcrashing Apr 13, 2014 7:43 AM in response to fireflymd
    Level 1 (0 points)
    Apr 13, 2014 7:43 AM in response to fireflymd

    I think the lesson to learn is always create a backup from day 1 that you buy a mac or any laptop for that matter.  And once you have you system setup as you like it create another backup.  Time machine is also convenient for reverting if you find and issue revert to backup just previously.

  • by PJDJ77,

    PJDJ77 PJDJ77 Apr 22, 2014 9:46 PM in response to m@rk_o
    Level 1 (0 points)
    Apr 22, 2014 9:46 PM in response to m@rk_o

    Deleting //Library/Preferences/SystemConfiguration did it for me. Many thanks!

  • by MalcolmR,

    MalcolmR MalcolmR Apr 25, 2014 7:04 AM in response to Reforger
    Level 1 (0 points)
    Apr 25, 2014 7:04 AM in response to Reforger

    >Reforger: Many thanks. Your solution solved my problem. (iMac upgraded from Lion to Mavericks about 4 weeks ago; I use this machine to serve iTunes to my Airtunes network. It had run for years without any problems, but as soon as Mavericks was installed, the Airtunes network would drop for 20 seconds on the hour at :51mins and 34secs. I could set my watch by it)

     

    Prior to your solution, I'd been through the gamut of DNS and DHCP tweaks, converting all my nodes to static IP addresses, and shutting down IGMP on my router (Verizon/ActionTec). Some of these seemed to solve the problem, but only briefly.

     

    I'd like to see a proper explanation for this Mavericks behavior and wonder if it is related to Apple's relationship with the NSA.

     

    Anyway, thanks again Reforger.

  • by Sonia Webb,

    Sonia Webb Sonia Webb Apr 28, 2014 6:00 AM in response to Reforger
    Level 1 (10 points)
    Apr 28, 2014 6:00 AM in response to Reforger

    Thanks Reforger,

     

    I've been going through this problem for months now, what a pain! I sometimes could not log into my mac remotely because of no connection and boy what a problem that was. I have tried multiple suggestions in other discussions. I have been up and running connection-wise for 3 without an issue. Never thought to look at what was trying to connect first and set wi-fi to be first.

  • by MalcolmR,

    MalcolmR MalcolmR Apr 28, 2014 6:36 AM in response to MalcolmR
    Level 1 (0 points)
    Apr 28, 2014 6:36 AM in response to MalcolmR

    SPOKE TOO SOON. Problem not fixed. As both a Lion based and Mavericks based Macs lose network on the LAN at the same time, it points more to some quirk in routing. Ethernet and WiFi are both affected.

     

    The LAN and WAN drop for 20 seconds every hour starting at 10:51:34 AM and ending at 6:51:34 PM. The router logs are full of daemon errors a few minutes prior to these clcok-like events.

     

    Verizon FiOS support was unable to shed any light on the issue, but is sending me an up-to-date router (the current Actiontec is rev A from 7 years ago).

     

    Message was edited by: MalcolmR

  • by yottzumm,

    yottzumm yottzumm May 1, 2014 2:29 PM in response to nikitkas
    Level 1 (0 points)
    May 1, 2014 2:29 PM in response to nikitkas

    I have a mac mini I bought last year.   Occasionally my router goes out and I have to reset it.  More often, when I sit down at my mac, I can see it connect in skype, and then it will disconnect.  The last time this happened, I logged off and logged back in and the problem was solved.  I don't know why this solved my issue this time.  I will try turning off bluetooth next time.  I don't think I have any bluetooth devices, but I can see the bluetooth icon.

     

    For others, is it possible that removing your system configuration turned off bluetooth?

  • by PhillipUK,

    PhillipUK PhillipUK May 6, 2014 11:28 AM in response to MalcolmR
    Level 1 (0 points)
    May 6, 2014 11:28 AM in response to MalcolmR

    Same here.

    Thanks for the tips. Tried them all. It works ok for a day or so but reverts back to the way it was.

     

    I have an ethernet connection and it takes about a minute or so to reconnect after a wake. I think it is something to do with the lease renewal between my iMac and router (Asus RT-N66U) as my previous Thomson one didn’t suffer from this. I have also bought a new iMac since and the same happens. Pain in the neck really. Wondering if a static IP from ISP will make a difference???

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