Slow LAN Networking Speeds after Resuming from Sleep

I use my mac mini as a HTPC running Plex. I have it connected to my Windows media server with 802.11n. Works fine but sometimes after resuming from sleep the network speed drops off to an unacceptable level (from 72 Mb/sec to 5 Mb/sec). Disconnecting and reconnecting doesn't help. Switching to G doesn't help. Only restarting the mini restores the connection to full speed.
None of my Windows clients on the same network have any troubles.
Thoughts?

Looks like Plex might be causing the problem. I always have plex running and it appears as though if Plex makes a request for a file on the share before OS X is done re-mounting it after sleep, it kills the whole process.
Shouldn't the OS be robust enough to handle a situation like this?

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X220 very slow reconnecting to WiFi when resuming from sleep

So my X220 with the Intel 6205 card is having issues reconnecting to WiFi when resuming from sleep or hibernation. It takes about a minute for it to do so, though occasionally it will reconnect right away. Maybe 1 out of 20. When doing a cold boot or restart, it connects immediately upon the desktop showing up.
This was not always the case, in fact when I first got my X220 in June, I have not had this issue.... In fact, I don't know when it started happening, but it was maybe a couple months ago. I just thought it was my old router going bad. Well I got a new router, and it still happens. I have the latest Intel WiFi drivers from Lenovo, and I even tried downgrading to the previous driver from Intel's site. Still the same problem. I tried setting a default profile in access connections, and that does not help. In fact, it behaves the same way if I totally uninstall access connections as well. In fact I tried this on three different brand routers, and I can reproduce it on all of them (Asus, Netgear & TP-Link) so I think this is not a router issue. Other devices in the house reconnect right away with no issues (iPhone 4, PS3, Mac desktop, Dell laptop).
I currently have BIOS 1.24, but this was happening with 1.21 and 1.23 as well. My X220 originally came with 1.16, and I haven't updated it until 1.21. Unfortunately I don't remember that far back, if the problem started occuring then.
There was a brief discussion about this in another thread, but it went nowhere so perhaps this will get more attention. At least one other user reported the same issue.
Here's a clip of exactly what happens. When i press the button or open the lid from sleep, the windows wifi icon will start spinning for a few seconds, then turn into an X. then only about a minute later, does it quickly connect to the wifi and I have full signal. Manually clicking on the icon and selecting the access point does not speed up the process. It will only connect when it wants to, about a minute after resuming from sleep/hibernation.
http://youtu.be/dmboeA7HBgg
| X220 i7-2620M | 12.5" IPS | Intel 520 Series 180GB Main SSD | Mushkin 120GB mSATA SSD | 8GB RAM | Intel 6205 WiFi | BT | Win7 Pro 64 SP1 |
Solved!
Go to Solution.

Normally when a laptop running windows tries to connect to a network, it may also seek to identify certain components on the network, for example, asking the router "Who are you?". In your case, maybe the config are corrupted because the network address entries are messed up. Queries send out to the network come back with no replies, and the computer waited for the default time till timeout and it gives up.
Try this one at a time, reboot, or try all at once and reboot
TCP/IP stack repair options for use with Vista or 7.
Start, Programs\Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.
Reset WINSOCK entries to installation defaults: netsh winsock reset catalog
Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log
Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log
Reboot the machine.

Update to 10.6.8 - system hang (mouse issue) after resume from sleep

I am on older
MacBook Pro3.1
Intel Core 2 Duo
2.6GHz
Run on 10.6.8 almost flawelessly. Shortly after upgrade to 10.6.8 system started to hang periodically after resuming from sleep. Symptoms are that it stops responding to mouse (be it touch pad or USB mouse). Keyboard seems to be ok but system doesn't seem to be fully functional. I am able to ssh from the other computer and 'shutdown -r now' after reboot system seem to be ok until next resume from sleep. What interesting though is that this problem newer manifests then I am using external monitor.

Found problem. It was due to magic mouse that I left on. I carry this mouse in the laptop bag but rarely use it. Last time I used it (around the same time I install the update) I left it on in the bag. It was apparently disconnecting/connecting on its own and by some reason sometimes was breaking touch pad and other usb mouse connected to laptop, as soon as I switched magic mouse off broblem was fixed

My Mountain Lion mac crashes after resuming from sleep

Hello
My Mountain Lion mac crashes after resuming from sleep every time I use it
It happens every time the mac resumes from sleep and it started like a week ago
I remember installing the new updates for flash? and xquartz and nothing else.
I have also had microsoft word installed on my mac for about 1 weeks before this problem started so might be related to that
Please share with me any tips on how to fix this because I am really annoyed of losing stuff after each time my mac resumes from sleep

I have an iMac bought may -11, and it worked fine with Snow Leopard.
About a week ago I bought and installed Mountain Lion 10.8.2. Everything went fine, and all software worked ok. iPhoto had some problems, but after installing update the system prompted to do, it has worked ok.
The propblem occurs now and then, when computer is waked up from sleep. The Desktop occurs, but no software starts, not even System Tools untlil rebooting the computer. Of course, I can not reboot the computer from "Apple menu", but holding the power button down.
This is very embarassing! OsX Mountain Lion has turned out to be a very big disappointment. I installed id because of iCloud (i have a new iPad, too with iOs 6 installed).
Can anyone help me? Is there any other way to solve the problem than re-installing good old Snow Leopard?
I would not like to do that, I bought Mac because I was bored in re-installing and recovering!
Thank you

My Mac Pro loses network connection after wake from sleep since Yosemite upgrade.

Mac Pro loses network connection after wake from sleep since Yosemite upgrade. Any one have this issue as well. And is there a work around?

Wi-Fi?
Wi-FI connection drops
Wi-Fi Problems in OS X Yosemite
Wi-Fi Problems in OS X Yosemite (2)
Wireless Diagnostics
Also try turning off Bluetooth.
Troubleshooting Wi-Fi issues in OS X
Wireless Connection Problems - Fix
Wireless Connection Problems - Fix (2)
Wireless Connection Problems - Fix (3)
Wireless Connection Problems - Fix (4)

Wifi Lost and Network Preferences Inaccessible after Resume from Sleep

Macbook Pro, shipped with Lion.
I've had a problem when Lion resumes from sleep of not being able to access any networks. Specifically, the wifi symbol in the menu bar shows the pulsating waves, when clicked it reports that it is searching for networks, however it doesn't find the standard wireless network it is normally connected to at home, nor can I choose any further options in that dropdown menu. Specifically, I cannot access Network Preferences, via any GUI based method (don't know enough CLI to know how).
Most alarming is that this has happened in a couple of different scenarios:
1) normally putting the laptop to sleep if 2 different users are logged in via fast user switching
2) if the computer shuts itself down from the sleep position because it has been unplugged for too long.
Restarting does revert everything back to normal, but I was hoping for a less drastic fix. Sorry to gripe, but I'm especially disappointed because I'm a mac newbie, and between this and other problems, have had to restart this mac due to spinning pinwheels of death and the like more in 2 months than I ever have a Sony Vaio Z running Windows 7. Kind of disappointing that Mac has the less stable operating system.

That's awkward. It may not be the Mac itself making it unstable, but yet programs on it making it unstable (lazy developers maybe). Although do remember that OS X Lion is fairly new, and a few bugs are still being ironed out.
First thing you should do is Repair permissions. Open up Disk Utility, Chose your disk on the Left and click on the Repair Permissions button. This can take about 20 minutes and fixes most problems.
Questions:
Have you installed any additonal system prefence panels?
Have you installed any programs that alter with WiFi?
Does your WiFi Access point have enough strength for where you are?
If you have installed addional system preferences then I suggest that you go to Finder, and in the top bar click on "Go" and navigate to "Go To Folder". In that box put this: "~/Library/PreferencePanes" (No quotes though - and remember the "~" ).
It'll take you to a folder, copy those into a safe location and remove the contents of that folder.
If you are an Administrator of your computer then do the same in "/Library/PreferencePanes".
Hope all goes well! Good luck!

Lets speed up resume from sleep

So I am a laptop user and most everything works, but suspend(I rarely power down) is a little slow, or should I say resuming from suspend. I counted it to be around 20-25s to come up. I did some poking around and started editing some of my suspend scripts in /usr/lib/pm-utils/sleep.d. I removed the suspend resume network manager because I use Arch Assistant and netcfg2. That didn't seem to make a real difference (maybe a second). The next thing I changed was the netcfg script. I changed the netcfg2 all-resume/resume to run in the background via a & at the end and that seemed to make a big difference. Suspend was a few seconds faster and resume now took around 10s. So the question I have for all of you experts is what other scripts can be tweaked or added to the background to speed up the resume process? By the way my network has seemed to work just fine and I can ping addresses as soon as the system awakes.
Lets see if we can get arch to resume in 2 seconds! If it can already enlighten me please.

You can do a little test... Issue:
echo "mem" > /sys/power/state
as root. That will send your computer to sleep without running any scripts on suspend/resume. Time how long it takes to resume from sleep. There is a chance that the system will not resume properly, since that method uses no hardware specific quirks, so be warned, but it should give you an idea of how fast it can be made to work or, in other words, what the hardware/kernel limitations are.
10 seconds sounds about right, by the way. 2 seconds? No way!

X120E Touchpad inoperable after resuming from sleep

hello friends I'm a happy X120E user and a tech [pc's, mac's, lans, etc] - I do all sorts of tasks with my x120e and its been great. I recently "upgraded" my SSD so a fresh new install of Windows 7 was in order. After updating everything I have a problem I did not experience previously at all - not once in 3 years of use.
Upon resuming from sleep [and as far as I can remember this only occurs when resuming on battery], the touchpad/cursor is inoperable, frozen in the centered position, and I have found no way to 'wake' it. I finally have to shutdown/restart to get things functioning again. Keyboard works fine, but not touchpad or trackpoint [either/both].
maddeningly, its not consistent in this. sometimes it works, sometimes it does not.
I have seen the same issue with, and without, the supplied Lenovo Ultranav driver installed.
Question: in the X120E implementation, is the touchpad a PCI bus device or a USB device? I see no power plan options [i.e. "Advanced" >"Allow this device to wake the computer"] available via Device properties. There are no pointer/mouse/touchpad options whatsoever under Power Plan Settings.
Will Fn+F8 enable/disable the touchpad on this notebook? or,... should it?

No. Powering off and on again didn't work. My drive is a Seagate 750GB internal SATA drive in a Vantec NexStar-3 external enclosure. I don't think it is a driver issue. After the device removal error it won't mount on my PC or my Mac via FireWire or USB.
What I need to know is if there is some way to connect to the drive and make it mount with other software, using some kind of keystroke during startup, or maybe through terminal or something. I can't even try to repair the drive because it won't show up in disk utility.

Airport no longer works after resuming from sleep

I got a new MacIntel a month or so ago, and it has always done this, under 10.4.4 and now 10.5.5
When resuming from sleep, airport shows full strength for second, then the signal disappears. NOTHING in settings, reconnecting etc will get it to work again. (this is 'deep' sleep, not just the display turning off)
If you restart (restart not shut down), then when it comes back, airport is just gone - even the menu bar indicator. The computer now thinks it has no airport installed at all. No matter how many times you restart, there is no longer any airport.
If you shut down, wait a minute and restart, it works as normal.
Since airport is the only way I connect to the network, and I don't want to waste electricity, this is unacceptable and clearly a flaw.
I called tech support and they had me move airport to the top of the list, delete plists and other stuff, none of which made any difference. I'm thinking this is a low level system software fault, and I hope I don't have to take it back for a motherboard replacement.

I also have this problem, although, not very often.
I'm still running 10.4.4. This never happened with
prior versions. Rebooting is the only way to
correct the problem. Simply turning off Airport and
turning it back on does not help.
Thats interesting actually because I Never had any trouble on my G5 iMac of otherwise identical specification, on on intel. Hmm. I was thinking this was an intel issue.
Wonder if its a hardware problem (though I suspect not).

T440S OSD Brightness control failure after resume from Sleep

Hi,
I have owned a T440S since late 2013.
Relevant Details:
T440S
Model : 20AQCTO1WW
OS : Windows 7 professional (original installation by Lenovo)
Latest Drivers installed as of June 2014 - including HotKey and Power Management
HotKey ver : 8.30
Power Managment : 6.65.1
Since receiving this laptop, OSD birightness control has always failed to work, i.e. does not appear on the screen
when using the Fn+F5/F6 key combination nor does it control actual screen brightness AFTER FIRST resuming from sleep
mode.
Sequence of steps that demonstrates the above symptom:
1. OSD brightness works fine after reboot
2. Putting the machine to sleep (I do not use hibernate) for a duration longer than a few minutes
3. Open lid the first time, hit Fn to resume machine
4. Pressing Fn+F5/F6 key combo does not display the brightness slider nor does it control brightness
5. Closing the lid and opening it again, causes OSD brightness slider to flash brifely and is now fully functional
using Fn+F5/F6 keys
Your tech department should easily be able to re-create this issue on any stock T440S/Win7pro machine, as
I have seen others comment about this very issue across other T440/OS variants.
This very same behavior has been there since the beginning.
When is Lenovo going to FINALLY FIX IT ONCE AND FOR ALL?
Thx,
--Alon
Solved!
Go to Solution.

Try this hotfix:
https://support.microsoft.com/kb/2752407
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen

Network connection after waking from sleep

Hi... More or less any time I allow my MacBook Pro to go to sleep, when I wake it up I am nearly always disconnected from my Airport connection (I connect to a NetGear wireless router via my internal Airport card). I go up to the menu bar and click on the now grey airport icon and I do still see my network in the list of available networks. I click on it, after several seconds a message comes up that says "there was an error joining the Airport network "network name""... But I then simply click on OK (rather than Try Again, I've learned that by trial and error) and the network reconnects just fine... Then when I let the machine sleep again at some later time, I do that all again... Any suggestions of what might be going on??? I do have "Use Interference Robustness" turned on (not that I know why exactly) but I've also had it off before and that seems not to matter... Any suggestions??? thanks... bob..
FW800 G4 dual 1.25 Ghz and 17 inch MacBook Pro Mac OS X (10.4.8)

I have "join preferred networks" selected, and mine os the only one on the list, and it still does not connect after waking from sleep. It is WEP security, not WPA2. I checked out the following article, but it was of no help:
http://docs.info.apple.com/article.html?artnum=304482

Mac Os X Lion Crashes after resuming from Sleep

Hi Everybody, i'm experiencing an issue on my 13'' MBP Early 2011 (i5 processor, 4GB RAM, 750GB HD SATA). My MBP often got stuc after i resume from my monitor sleep. I'll explain it in a better way: After i resume from sleep, there's at first a black screen in which the mouse can move, after that the mouse becmes the classic loading wheel and it freezes copletely, remaining in this situation. I thought it was a screensaver compatibility issue, but the problem stand still after i uninstalled screensaver and deactivate the screensaver options. I think it's a problem with Lion with the HD, but i have no evidence of it. Can Anyone help?
Thank you in advance,
Daniele.

Whenever someone comes to me with crashing and freezing on waking up I look at 3 things and typically in this order:
(1) Hard drive - usually if it is the hard drive SMART has already given a warning if the drive is actually failing or running Disk Utility reveals problems - often problems that cannot be fixed. Also, when the crashes are related to the hard drive there may actuallly be nothing wrong with the drive and a simple erase and reinstall will fix it.
(2) Software issues - the old trick of creating a new account and logging into it to see if the problem is in your account or global helps. Looking in console to see if there's an error message logged just before the crash can be instructive - or not. Often the crash occurs before an error is logged. Sometimes reinstalling the OS is the solution - that's where having a FireWire hard drive is helpful. I can just boot with it and see if the computer still crashes on waking. If not I know to reinstall the OS.
(3) RAM - marginal and faulty RAM can be the culprit in many cases. The frustrating thing about RAM is that RAM tests seldom give false positives, if the test says you have bad RAM, you do. Unfortunately when the test reveals nothing wrong the RAM might still be defective, just not enough for the test to catch.
However, past history has led me to put RAM at the top of the list after an OS upgrade. Marginal RAM has been the culprit of many crash on wake problems with previous OS upgrades. I especially recall Leopard and Snow Leopard being affected - at the shop where I sometimes work we did a lot of RAM warranty replacements after those two upgrades. And here at the support forum we saw lots of people complaining of crash on wake problems coming back and saying, "Yep, got my RAM replaced and all is well." So if any of you are like me and upgraded your RAM, if you have the original RAM sitting around swap it in and see if the crashes stop.

Network issues after returning from sleep mode

I'm noticing this issue on T440, Twists, T420s, whether it's Windows 8, Windows 8.1 or Windows 7. Sometime around the end of last year and the beginning of this year, my users suddenly started reporting problems with the machines after returning from sleep mode. The network adapter (whether plugged in or using wifi), would show limited connectivity and would not connect to the internet until the machine is rebooted.
I've tried updating drivers, using system restores, disabling the network adapters from shutting down to conserve power, OS network diagnosis & network adapter resets, none of which has worked. Hibernation is disabled on all machines.
The only fix I have is to reinstall the OS over the top of the system and reinstall all updates. Looking for help with this issue.
Thanks!
Solved!
Go to Solution.

Hi Mertz74,
Thank you for replying us back!
Please check with uninstalling power manger and reinstall it with latest driver.
Download chipset driver from Lenovo drivers page and install it.
Please check with above option to resolve the issue.
Below is the link to enter the downloads page and download updates accordingly, please click on "Select Product" then in "QUICK PATH" enter the MTM no. select the exact model.
http://support.lenovo.com/en_US/downloads/default.page#
Hope this helps. Do post back if issue persists!
Best regards.
Hemanth Kumar
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High CPU load after resuming from sleep mode

When my laptop resumes from sleep mode, LabVIEW 2012 starts to generate a very high and always constant CPU load (25%) without any VI running. I need to close all front panels to get back to the usual <1% CPU load level.
This behaviour spoils my carbon footprint and frequently eats up my battery. Any ideas what is causing this ?
Thank you,
Dirk

I'm guessing your issue may be related to this:
http://forums.ni.com/t5/LabVIEW/Why-is-using-100-of-a-CPU-1-out-of-8-when-it-does-nothing/m-p/242745...
Dirk@LV wrote:
This behaviour spoils my carbon footprint and frequently eats up my battery.
Thank you,
Dirk
Sorry about your carbon footprint, NI has a lot to answer!
Beginner? Try LabVIEW Basics
Sharing bits of code? Try Snippets or LAVA Code Capture Tool
Have you tried Quick Drop?, Visit QD Community.

Network connection slow to become active after waking from sleep.

Using MBP (2007) with OS 10.8.2 I put my machine to sleep each night after work. Each morning when I wake it, the network connection takes over 90 seconds to become active. This is on a WIRED network. Didn't have this problem before Mountain Lion upgrade. Before ML the connection was nearly instant. Any clues?

I am seeing the same issue. I believe it started after upgrading to 10.8.2. (I did not notice such long network reconnections after wake with either 10.8.0 or 10.8.1.) I am also on a wired network. Same result using DHCP and fixed IP.
The network reconnection after wake used to be nearly instantaneous.

Slow LAN Networking Speeds after Resuming from Sleep

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