Wifi disconnect randomly

I m using Macbook Air 2013 model, recently i m facing wifi disconnection problem on my mac. It keeps disconnect for few mins and reconnect automatically. And this disconnecting & reconnecting continues for regular interval (5 mins once). Its really make me irritating and need ur help to sort out this issue..

Network preferences may be corrupted ...
Open the Finder. From the Finder menu bar click Go > Go to Folder
Type or copy paste the following:
/Library/Preferences/SystemConfiguration
Click Go then move all the files in the SystemConfiguration folder to the Trash.
See if that makes a difference.
Your Mac will generate a new SystemConfiguration folder for you.
If that didn't help, try the troubleshooting steps here > Wi-Fi: How to troubleshoot Wi-Fi connectivity

Similar Messages

X301 WiFi disconnections random

Lenovo X301
I have just purchased 2 x Lenovo X301's Model 2776-LEG and downgraded to XP SP2. The Laptops cost over £1,500 each !.
The Wifi card is a Intel 5300. The laptop connects to my access unit fine and I can use the internet for a good 1 to 2 hours fine without any issues.
At random times after this it will disconnect from the Router / Access unit. I then use the ThinkVantage Access Connections to Connect again to my WiFi and it works again for a few hours, and then disconnects again. I have disabled all Power saving features, in Control Panel, and also on the network adapter as far as I can see. I changed my Dlink Access units, and have just purchased a Linksys Wireless -N wap4400N access unit to see if this helps, but no success still disconnects
I spoke with 1st line Lenovo helpdesk who advised to upgrade .Net Framework to 3.50 which was a big mistake, Laptop went very very slow afterwards , and had to uninstall and keep at .net 3.0. I have also updated Access connections to 5.21 and no difference. I am awaiting Lenovo 2nd Tier support to call me back to see what else I can do.
Q1: Is anyone else suffering from the same issue ?
Q2: I see Intel have a later 5300 driver, and want to know if anyone installed it without any issues, and did it fix the disconnection issue ?
Q3: Why are Lenovo sending out £1,500 laptops that have not been fully tested fully with both hardware and software !!!!.
I have AVG 8.5 Installed, and BeCrypt dat protection software , which in the past have not caused problems with Lenovo T60 and T61 laptops
A very Annoyed customer !!!!!!

I´m having the same problems. I bought this fancy X200 machine for my wife and it´s driving her mad. It disconnects randomly like you describe and I have reinstalled the operating system (XPpro), tried a different router, done the things mentioned above and even changed the IP. I took it to the dealer for a checkup but they could not find enything and charge me for it so now I´m looking at selling this crap(if I can find somebody that I really don´t like) and get her a HP like I´m using.
I thougt I was buying quality but I have only got a crap machine and crap service. If somebody here can come up with a solution or even just an explanation I´d like to hear it.
Good luck to ya all
Arnar

ProBook 6570b, Broadcom WiFi disconnects randomly.

Dear Friends!
My ProBook 6570b is dropping WiFi connection with a router randomly.
WiFi adapter: Broadcom BCM943228HM4L 802.11a/b/g/n 2x2 WiFi Adapter
OS: Windows 8.1
Router: TP Link N600 (TL-WDR3600)
It happends this way.
After some time being online network apps like Skype or VPN Client report that network was lost.
Then the Windows icon that idicates network status shows a yellow exclamation mark.
Then if I click that Icon I see that my Wifi network has "Limited" label below the AP name.
To restore the connection I need to Disconnect from WiFi AP manually and then connect again.
When "Limited" or disconnected I also cannot access my router (pinging 192.168.0.1 fails) so I'm sire that this is wifi issue between laptop and router. At the same time all other devices are working properly. I even recorded a small screen video of how it happends, with comments: https://youtu.be/C96XtgzA9rw
There is one more strange thing. There is a checkbox "Connect automatically" in Windows Networks panel. Even if I click it before connecting it does not save its state - after connection fails again the checkbox is not checked again.
One important note is that there are four more WiFi client devices in a room using the same router without issues.
I spent much time trying to fix it but still nothing. What I did in total:
1. Tried different drivers. Currently I have version 6.30.223.170 from HP site (the latest one)
2. Replaced an adapter with a new one. The same model. Nothing changed.
3. Always install all Windows Updates it offers. Both required and optional.
4. Added my MAC address to address reservation list on a router to minimise address re-issuing.
5. Disabled Power-Off option for the adapter
6. Reset TCP/IP settings with netsh int ip reset resetlog.txt
Please help to find out the solution.

Dear All!
Is there anyone who could help to resolve this issue?
Thanks in advance.

Iphone 4s wifi disconnects randomly and setting page freezes when trying to enter wifi networks

After the Ios 7.0.3 update, this started happening. I'm using wifi then suddenly it disconnects from it, and when I go to scan for wifi, the setting page freezes upon touching the wifi network and it crashes. and when It doesn't lfreeze, I can't see any wifi network although the router is within 5 feet from my location. after some time the wifi comes back again for 10 minutes and then it does the same thing.

Go to Settings>General>Reset>Reset Network Settings, then try joining again and you should get the password prompt.

IPhone 5 wifi disconnecting randomly since iOS 7.1 install

Since updating recently to iOS 7.1 my iPhone 5 has decided it will only connect to a wifi network if I'm within 2-3 metres of the router. My iPad hasn't been updated to iOS 7.1 and still works as it did, and my wifes iPhone 4 hasn't been updated either and that still works fine.
I use my iPhone for work as well - it links via a wifi signal to a camera which I can then operate from my iPhone. I attach the camera to a pole which is then extended up to roof height to do roof surveys with. Problem is that the wifi signal drops once the camera is extended any further than 2-3 metres (making roof surveys impossible now) which suggests to me that it's not a router issue but more a problem since the iOS 7.1 update. The wifi link with the camera worked perfectly prior to the update. I've tried colleagues phones (not updated to 7.1 yet) and they all work fine so I'm convinced that it's the phones wifi that's the problem.
I've reset the network settings, didn't make any difference. I've reset the phone using the home button/screen off button and that didn't work either.
I've just backed up the iPhone again so I guess the next step is a full factory reset?
My nearest Apple store is close to 100 mile round trip so taking it into a store isn't ideal.
Any other thoughts? Seems there's a lot of others having the same issue, anyone managed to find a fix for this hugely inconvenient issue yet?

You should reset your router before doing anything else. Just unplug it for 30 seconds, then try to connect to it again.

After updating 8.1 , wifi still randomly disconnect sometimes. It never happened to me when i had iphone 4. That's really hard to accept.

After updating 8.1 , wifi still randomly disconnect sometimes. It never happened to me when i had iphone 4. That's really hard to accept.
Is it worth 900 dollars for a smartphone that has so many issues ? After 3 updates? After 1 month? I wasted 2 gb of mobile internet cause of ios 8.
And battery is terrible.

same here, iphone 6 plus 64 gb.
additionally in 5 ghz networks the wifi connection is very slow or there is no data transfer possible ( the wifi icon is already there and in a good status) other devices hasn't any problems in that network

Wifi is randomly disconnecting and won't let me reconnect

After updating my iphone to the latest version of iOS, my wifi disconnects EVERY.SINGLE.NIGHT. When I wake up in the morning, it's not connected. Then, when I go to wi-fi, it shows my network, but no others. When I try to connect to my network, it asks for my password, even though it's stored. When I enter my password, it asks for my password again. Here's what I've tried so far:
1.) Forget network and then connect again. Sometimes it won't let me because it tells me that my password is incorrect, which it isn't.
2.) Turn phone off and on again. This worked once or twice, but that's it.
3.) Connect to itunes. Again, this worked a couple of times, but the problem happens again that night.
4.) Reset to factory settings. I've done this TWICE. I've wiped out everything and started over. But that night, it happens again.
5.) I've done everything listed here: iOS: Troubleshooting Wi-Fi networks and connections - Apple Support
Sometimes these things will work to get my wifi up and running again, but then when I wake up the next morning, I have to start all over. This is ridiculous. I had zero issues until I downloaded the recent update and now I have to go through a long, frustrating process every single morning just to get wifi??

Mine is the one at the top... it seems pretty unique, especially when there are no others like it in my range. Also, I never had an issue with it until just about ten days ago or so.

G700 random wifi disconnections

Hi,
I have a G700 with windows 8 and I have noticed many wifi disconnections, from my home but also from other places where I can connect. So I'm know sure that it is not a problem with my home wifi connection...
I have just a few knowledge about windows 8 and don't know exactly what to do to fix this problem...
thank you for your help

hi Missparker
Welcome to Lenovo Community Forums!
"Given that you have already did a Router modem Power cycle and still the same results and you have a working LAN connection to download some drivers"
1.
Open System Properties and go to Advanced System Settings
Then this
Spoiler
Now on the options
do this
Spoiler
2.
Download the driver based on you Wificard model
WLAN Driver (Broadcom, Qualcomm)
run the Downloaded file and just go ahead with it till it finishes the installation.
3. Open device Manager / Under Network Adapter, right click on WLAN device and select update driver
Now on the pop up window select "Browse my computer for driver software
Then select "Let me pick from a list"
You will be provided with a list of driver
Now select a driver and Check your Wireless connectivity
If it shows the same behavior
repeat step 3 and select another driver
and see how it goes.
Please Let me know your findings
Cheers!
Solid Cruver
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Constant Wifi Disconnect After Moving To SystemD

Hi All,
I used netcfg for months with a WPA2 connection using the initscripts. I finally moved to systemD. I was getting dbus errors from systemD using systemctl so updated via pacman which fixed the errors. I did this within minutes apart so not for sure if a kernel update broke something - stupid move on my part.
Any how I followed the wiki guide for netcfg, within a few minutes and after a reboot was happily working away. I configured the wifi like so:
systemctl enable netcfg@gloryhole
Then the wifi disconnecting started at random intervals but very quickly, what seems to be less than 3 minutes.
localhost kernel: [ 9.331945] wlan0: authenticate with 90:a4:de:2f:1f:b9
localhost kernel: [ 9.351603] wlan0: send auth to 90:a4:de:2f:1f:b9 (try 1/3)
localhost kernel: [ 9.554574] wlan0: send auth to 90:a4:de:2f:1f:b9 (try 2/3)
localhost kernel: [ 9.556136] wlan0: authenticated
localhost kernel: [ 9.556291] rtl8192se 0000:1f:00.0: wlan0: disabling HT as WMM/QoS is not supported
localhost kernel: [ 9.567893] wlan0: associate with 90:a4:de:2f:1f:b9 (try 1/3)
localhost kernel: [ 9.569768] wlan0: RX AssocResp from 90:a4:de:2f:1f:b9 (capab=0x31 status=0 aid=3)
localhost kernel: [ 9.570797] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
localhost kernel: [ 9.570870] wlan0: associated
localhost kernel: [ 326.279834] NVRM: GPU at 0000:02:00: GPU-23b184ce-812d-5661-9f43-2ee29ea56551
localhost kernel: [ 383.804336] wlan0: deauthenticated from 90:a4:de:2f:1f:b9 (Reason: 2)
localhost kernel: [ 383.820139] cfg80211: Calling CRDA for country: EC
localhost kernel: [ 384.966159] wlan0: authenticate with 90:a4:de:2f:1f:b9
localhost kernel: [ 384.985739] wlan0: send auth to 90:a4:de:2f:1f:b9 (try 1/3)
localhost kernel: [ 384.987245] wlan0: authenticated
localhost kernel: [ 384.987311] rtl8192se 0000:1f:00.0: wlan0: disabling HT as WMM/QoS is not supported
localhost kernel: [ 384.998889] wlan0: associate with 90:a4:de:2f:1f:b9 (try 1/3)
localhost kernel: [ 385.000853] wlan0: RX AssocResp from 90:a4:de:2f:1f:b9 (capab=0x31 status=0 aid=3)
localhost kernel: [ 385.001928] wlan0: associated
localhost kernel: [ 443.766995] wlan0: deauthenticated from 90:a4:de:2f:1f:b9 (Reason: 2)
localhost kernel: [ 443.785044] cfg80211: Calling CRDA for country: US
localhost kernel: [ 444.920930] wlan0: authenticate with 90:a4:de:2f:1f:b9
localhost kernel: [ 444.940676] wlan0: send auth to 90:a4:de:2f:1f:b9 (try 1/3)
localhost kernel: [ 444.942174] wlan0: authenticated
localhost kernel: [ 444.942247] rtl8192se 0000:1f:00.0: wlan0: disabling HT as WMM/QoS is not supported
localhost kernel: [ 444.953807] wlan0: associate with 90:a4:de:2f:1f:b9 (try 1/3)
localhost kernel: [ 444.957208] wlan0: RX AssocResp from 90:a4:de:2f:1f:b9 (capab=0x31 status=0 aid=3)
localhost kernel: [ 444.958280] wlan0: associated
localhost kernel: [ 503.737604] wlan0: deauthenticated from 90:a4:de:2f:1f:b9 (Reason: 2)
localhost kernel: [ 503.759940] cfg80211: Calling CRDA to update world regulatory domain
localhost kernel: [ 504.899167] wlan0: authenticate with 90:a4:de:2f:1f:b9
localhost kernel: [ 504.918917] wlan0: send auth to 90:a4:de:2f:1f:b9 (try 1/3)
localhost kernel: [ 504.921386] wlan0: authenticated
localhost kernel: [ 504.921458] rtl8192se 0000:1f:00.0: wlan0: disabling HT as WMM/QoS is not supported
localhost kernel: [ 504.932053] wlan0: associate with 90:a4:de:2f:1f:b9 (try 1/3)
localhost kernel: [ 504.933936] wlan0: RX AssocResp from 90:a4:de:2f:1f:b9 (capab=0x31 status=0 aid=3)
localhost kernel: [ 504.935006] wlan0: associated
localhost kernel: [ 517.536570] wlan0: deauthenticating from 90:a4:de:2f:1f:b9 by local choice (reason=3)
localhost kernel: [ 517.569924] cfg80211: Calling CRDA for country: US
After reading some forums they recommended net-auto-wireless.
systemctl enable net-auto-wireless
Still no luck, another forum recommended removing netcfg and trying some thing else, since they had constant disconnects. I installed wicd and disabled services that could conflict with wicd. Disconnect problem still exists
I verified hardware is OK, in windoze wifi card works great, pulled down many gigs with no problem testing. My laptop has native systemD install with wicd and works great so nothing with my AP.
My system info:
mr337@chronos ~ $ uname -a
Linux chronos 3.6.9-1-ARCH #1 SMP PREEMPT Tue Dec 4 08:04:10 CET 2012 x86_64 GNU/Linux
mr337@chronos ~ $ lspci | grep -i network
1f:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8191SEvB Wireless LAN Controller (rev 10)
If anyone can spot a trouble service
mr337@chronos ~ $ systemctl list-units
UNIT LOAD ACTIVE SUB DESCRIPTION
proc-sys...t_misc.automount loaded active running Arbitrary Executable File Formats File System Automount Point
sys-devi...net-wlan0.device loaded active plugged /sys/devices/pci0000:00/0000:00:04.0/0000:1f:00.0/net/wlan0
sys-devi...-net-eth0.device loaded active plugged /sys/devices/pci0000:00/0000:00:06.0/0000:3f:00.0/net/eth0
sys-devi...-sda-sda1.device loaded active plugged WDC_WD1001FALS-00J7B1
sys-devi...-sda-sda2.device loaded active plugged WDC_WD1001FALS-00J7B1
sys-devi...-sda-sda3.device loaded active plugged WDC_WD1001FALS-00J7B1
sys-devi...-sda-sda4.device loaded active plugged WDC_WD1001FALS-00J7B1
sys-devi...-sda-sda5.device loaded active plugged WDC_WD1001FALS-00J7B1
sys-devi...block-sda.device loaded active plugged WDC_WD1001FALS-00J7B1
sys-devi...-sdb-sdb1.device loaded active plugged WDC_WD2500AAKS-00UU3A0
sys-devi...-sdb-sdb2.device loaded active plugged WDC_WD2500AAKS-00UU3A0
sys-devi...block-sdb.device loaded active plugged WDC_WD2500AAKS-00UU3A0
sys-devi...block-sr0.device loaded active plugged TSSTcorp_CDDVDW_TS-H653Q
sys-devi...und-card1.device loaded active plugged Logitech_USB_Headset
sys-devi...und-card0.device loaded active plugged /sys/devices/pci0000:00/0000:00:14.4/0000:07:04.0/sound/card0
sys-devi...tty-ttyS1.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS1
sys-devi...tty-ttyS2.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS2
sys-devi...tty-ttyS3.device loaded active plugged /sys/devices/platform/serial8250/tty/ttyS3
sys-devi...tty-ttyS0.device loaded active plugged /sys/devices/pnp0/00:07/tty/ttyS0
sys-subs...ices-eth0.device loaded active plugged /sys/subsystem/net/devices/eth0
sys-subs...ces-wlan0.device loaded active plugged /sys/subsystem/net/devices/wlan0
-.mount loaded active mounted /
dev-hugepages.mount loaded active mounted Huge Pages File System
dev-mqueue.mount loaded active mounted POSIX Message Queue File System
home.mount loaded active mounted /home
proc-sys...infmt_misc.mount loaded active mounted Arbitrary Executable File Formats File System
sys-kernel-debug.mount loaded active mounted Debug File System
tmp.mount loaded active mounted /tmp
cups.path loaded active running CUPS Printer Service Spool
systemd-...ord-console.path loaded active waiting Dispatch Password Requests to Console Directory Watch
systemd-...ssword-wall.path loaded active waiting Forward Password Requests to Wall Directory Watch
colord.service loaded active running Manage, Install and Generate Color Profiles
cronie.service loaded active running Periodic Command Scheduler
cups.service loaded active running CUPS Printing Service
dbus.service loaded active running D-Bus System Message Bus
[email protected] loaded active running Getty on tty1
ntpd.service loaded active running Network Time Service
rc-local.service loaded active exited /etc/rc.local Compatibility
sshd.service loaded active running OpenSSH Daemon
syslog-ng.service loaded active running System Logger Daemon
systemd-journald.service loaded active running Journal Service
systemd-logind.service loaded active running Login Service
systemd-...les-load.service loaded active exited Load Kernel Modules
systemd-remount-fs.service loaded active exited Remount Root and Kernel File Systems
systemd-sysctl.service loaded active exited Apply Kernel Variables
systemd-...es-setup.service loaded active exited Recreate Volatile Files and Directories
systemd-...-trigger.service loaded active exited udev Coldplug all Devices
systemd-udevd.service loaded active running udev Kernel Device Manager
systemd-...sessions.service loaded active exited Permit User Sessions
systemd-...le-setup.service loaded active exited Setup Virtual Console
wicd.service loaded active running Wicd a wireless and wired network manager for Linux
cups.socket loaded active listening CUPS Printing Service Sockets
dbus.socket loaded active running D-Bus System Message Bus Socket
syslog.socket loaded active running Syslog Socket
systemd-initctl.socket loaded active listening /dev/initctl Compatibility Named Pipe
systemd-journald.socket loaded active running Journal Socket
systemd-shutdownd.socket loaded active listening Delayed Shutdown Socket
systemd-...d-control.socket loaded active listening udev Control Socket
systemd-udevd-kernel.socket loaded active running udev Kernel Socket
dev-sda2.swap loaded active active /dev/sda2
arch-daemons.target loaded active active Arch Daemons
basic.target loaded active active Basic System
cryptsetup.target loaded active active Encrypted Volumes
getty.target loaded active active Login Prompts
graphical.target loaded active active Graphical Interface
local-fs-pre.target loaded active active Local File Systems (Pre)
local-fs.target loaded active active Local File Systems
multi-user.target loaded active active Multi-User
remote-fs.target loaded active active Remote File Systems
sockets.target loaded active active Sockets
sound.target loaded active active Sound Card
swap.target loaded active active Swap
sysinit.target loaded active active System Initialization
syslog.target loaded active active Syslog
systemd-...iles-clean.timer loaded active waiting Daily Cleanup of Temporary Directories

So still being frustrated and tired of having a long cat5 cable across my house I decided to take another whack at this.
First thing first I disabled WPA2 on the AP and let it wide open, even though every other device was working. Was hoping to rule out wpa but instead it got worse.
I first tried netcfg, after removing everything I could find on wicd. The issue with netcfg is I could connect but couldn't surf. A little testing showed that there is a problem with the wifi link established. It won't allow much or any traffic to go through. Pings barely work, surfing was hit and miss.
I decided to just connect via cli, once again removed netcfg, wicd, removed any trace files, disabled related services and rebooted to remove previous entries.
mr337@chronos ~ $ sudo iwlist scan
eth0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 90:A4:DE:2F:1F:B9
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=56/70 Signal level=-54 dBm
Encryption key:off
ESSID:"GloryHole"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Mode:Master
Extra:tsf=000000005d6beed4
Extra: Last beacon: 33ms ago
IE: Unknown: 0009476C6F7279486F6C65
IE: Unknown: 010482848B96
IE: Unknown: 030101
IE: Unknown: 0706555320010B1B
mr337@chronos ~ $ sudo iwconfig wlan0 essid GloryHole
mr337@chronos ~ $ sudo dhcpcd wlan0
dhcpcd[2132]: version 5.6.3 starting
dhcpcd[2132]: wlan0: sending IPv6 Router Solicitation
dhcpcd[2132]: wlan0: broadcasting for a lease
dhcpcd[2132]: wlan0: offered 176.16.128.30 from 176.16.128.1
dhcpcd[2132]: wlan0: acknowledged 176.16.128.30 from 176.16.128.1
dhcpcd[2132]: wlan0: checking for 176.16.128.30
dhcpcd[2132]: wlan0: sending IPv6 Router Solicitation
dhcpcd[2132]: wlan0: leased 176.16.128.30 for 7200 seconds
dhcpcd[2132]: forked to background, child pid 2158
mr337@chronos ~ $ ping google.com
PING google.com (74.125.225.37) 56(84) bytes of data.
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=1 ttl=54 time=31.6 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=2 ttl=54 time=28.9 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=3 ttl=54 time=36.9 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=4 ttl=54 time=34.1 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=5 ttl=54 time=44.8 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=6 ttl=54 time=52.1 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=7 ttl=54 time=40.8 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=8 ttl=54 time=41.6 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=9 ttl=54 time=26.9 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=11 ttl=54 time=32.1 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=12 ttl=54 time=26.7 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=14 ttl=54 time=34.0 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=15 ttl=54 time=28.6 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=16 ttl=54 time=27.9 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=17 ttl=54 time=67.7 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=18 ttl=54 time=52.6 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=19 ttl=54 time=698 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=20 ttl=54 time=720 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=21 ttl=54 time=380 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=22 ttl=54 time=383 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=23 ttl=54 time=852 ms
64 bytes from ord08s06-in-f5.1e100.net (74.125.225.37): icmp_seq=24 ttl=54 time=986 ms
I was doing the pings while trying to do a quick speed test but that hung too
mr337@chronos ~ $ wget -O /dev/null http://cachefly.cachefly.net/10mb.test
--2012-12-17 14:20:11-- http://cachefly.cachefly.net/10mb.test
Resolving cachefly.cachefly.net (cachefly.cachefly.net)... 205.234.175.175
Connecting to cachefly.cachefly.net (cachefly.cachefly.net)|205.234.175.175|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10485760 (10M) [application/octet-stream]
Saving to: ‘/dev/null’
13% [============> ] 1,405,172 --.-K/s eta 20m 24s ^
Again I am getting these in the kernel.log
Dec 17 14:17:15 localhost kernel: [ 569.314584] wlan0: authenticate with 90:a4:de:2f:1f:b9
Dec 17 14:17:15 localhost kernel: [ 569.324640] wlan0: send auth to 90:a4:de:2f:1f:b9 (try 1/3)
Dec 17 14:17:15 localhost kernel: [ 569.527632] wlan0: send auth to 90:a4:de:2f:1f:b9 (try 2/3)
Dec 17 14:17:16 localhost kernel: [ 569.730752] wlan0: send auth to 90:a4:de:2f:1f:b9 (try 3/3)
Dec 17 14:17:16 localhost kernel: [ 569.933897] wlan0: authentication with 90:a4:de:2f:1f:b9 timed out
Dec 17 14:18:42 localhost kernel: [ 656.135945] wlan0: authenticate with 90:a4:de:2f:1f:b9
Dec 17 14:18:42 localhost kernel: [ 656.145999] wlan0: send auth to 90:a4:de:2f:1f:b9 (try 1/3)
Dec 17 14:18:42 localhost kernel: [ 656.150370] wlan0: authenticated
Dec 17 14:18:42 localhost kernel: [ 656.150404] rtl8192se 0000:1f:00.0: wlan0: disabling HT as WMM/QoS is not supported
Dec 17 14:18:42 localhost kernel: [ 656.162493] wlan0: associate with 90:a4:de:2f:1f:b9 (try 1/3)
Dec 17 14:18:42 localhost kernel: [ 656.365624] wlan0: associate with 90:a4:de:2f:1f:b9 (try 2/3)
Dec 17 14:18:43 localhost kernel: [ 656.568769] wlan0: associate with 90:a4:de:2f:1f:b9 (try 3/3)
Dec 17 14:18:43 localhost kernel: [ 656.579139] wlan0: RX AssocResp from 90:a4:de:2f:1f:b9 (capab=0x21 status=0 aid=2)
Dec 17 14:18:43 localhost kernel: [ 656.580162] wlan0: associated
Dec 17 14:18:43 localhost kernel: [ 656.580196] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Dec 17 14:23:48 localhost kernel: [ 962.118225] wlan0: deauthenticating from 90:a4:de:2f:1f:b9 by local choice (reason=3)
Dec 17 14:23:48 localhost kernel: [ 962.141969] cfg80211: Calling CRDA for country: US
Interesting thing is I am getting a different deauthenticating reason, originally was 2. Deauthenticated reason=3 means "deauthenticated because sending STA is leaving (or has left) IBSS or ESS The access point went offline, deauthenticating the client" or AP went offline, which it did not. (src: http://www.aboutcher.co.uk/2012/07/linu … on-codes/).
Keep in mind I run my house on the same wifi so if anything went down somebody always tracks me down to fix it. Also my ISP link is not the problem as I was downloading at the same time and not saturating my pipe. At this point I think it is just easier to run a cable under the house and mount a jack. Ideas?

Macbook Pro Late 2011 (Yosemite) Wifi Disconnecting

Hi apple community,
I've recently purchased a 2nd hand refurbished macbook off Ebay.
This is my first Mac computer in my possession (I've used them at friends, school etc though)
and I love it but...
The wifi keep disconnecting randomly when my phone signal goes (I tether my phone to get internet).
Is there any setting to make it always stay connected to my wifi whatever the reception of my phone?
Thanks for reading!
ps. My phone is on the right next to be (so no wall is stopping it)
=D

Hi apple community,
I've recently purchased a 2nd hand refurbished macbook off Ebay.
This is my first Mac computer in my possession (I've used them at friends, school etc though)
and I love it but...
The wifi keep disconnecting randomly when my phone signal goes (I tether my phone to get internet).
Is there any setting to make it always stay connected to my wifi whatever the reception of my phone?
Thanks for reading!
ps. My phone is on the right next to be (so no wall is stopping it)
=D

I can't be the only one with this issue. MacBook Pro Retina Late-2013 WiFi disconnects after waking up from sleep.

Did anyone buy a MacBook Pro Retina 13" from Best Buy this Black Friday?
I'm having an issue where the WiFi disconnects after the MacBook wakes from sleep but only after a couple of minutes.
Once the WiFi disconnects, I can't reconnect to the same network and sometimes it won't find nearby networks.
I have to turn off the WiFi and wait for at least 5 seconds before turning it back on for it to auto-reconnect to my home network.
If I wait less than 5 seconds, it will continue to attempt connection to the home network but won't connect.
I've tried reformatting and deleting my network configurations as well as resetting my modem, power cycling it, etc.
I am using 2Wire Gateway modem/router from AT&T on b/g network.
I've tried connecting to a friend's network under Time Warner Cable and the same issue occurs.
I exchanged the MacBook at a Best Buy for a brand unopened one (I hope) and the same exact thing happens with this new one.
Really, I can't be the only one with this issue. Unless in a 0.00001% chance I received two defective units in a row?
Please.. does anyone have a clue why this is happening?

You're definitely not the only one. I have the same issue. I spent 6 hours over multiple days on the phone with Apple support trying a variety of things (some of which are mentioned above), and none of them worked. They finally sent me a replacement laptop. I made sure to try it periodicaly as I was moving files and installing applications to see if I ran into it again and things seemed okay at first but now I am running into the same issue and it is terribly annoying. I've got 5 other devices that connect to the same router and I've never had this issue with any of them.
My router is a Linksys E2000. I haven't tried changing the router channel but I have tried to cnnecting to other networks in the building I live in and I have run into the same issue there.

Wifi disconnects after about a minute after i am no longer using my computer . Why is this happening?

After logging into my wifi connection, which does take some time to do.
Why does my wifi disconnect after not using my computer for a few minutes?
I am on osx lion 10.7.5

Computer entering sleep mode after few minutes?

[SOLVED] External USB HDD drive gets disconnected randomly

Hi,
I'm encountering problem with external HDD drive. Recently I've installed a new drive and reinstalled Arch. I use my old disk as external one connected by USB. Unfortunately it get's disconnected randomly. This is what I found in journal:
journalctl
lut 22 17:06:39 t61 kernel: usb 2-1: USB disconnect, device number 2
lut 22 17:06:39 t61 udisksd[346]: Cleaning up mount point /run/media/kuba/ExtStorage (device 8:19 no longer exist)
lut 22 17:06:39 t61 systemd-udevd[165]: error opening USB device 'descriptors' file
lut 22 17:06:39 t61 kernel: Buffer I/O error on dev sdb3, logical block 33062912, lost sync page write
lut 22 17:06:39 t61 kernel: JBD2: Error -5 detected when updating journal superblock for sdb3-8.
lut 22 17:06:39 t61 udisksd[346]: Cleaning up mount point /run/media/kuba/ea5c6a7b-1f73-4527-b99c-29920084bd42 (device 8:17 no longer exist)
lut 22 17:06:39 t61 kernel: Buffer I/O error on dev sdb1, logical block 5275648, lost sync page write
lut 22 17:06:39 t61 kernel: JBD2: Error -5 detected when updating journal superblock for sdb1-8.
lut 22 17:06:40 t61 kernel: usb 2-1: new high-speed USB device number 4 using ehci-pci
uname -a
Linux t61 3.18.6-1-ARCH #1 SMP PREEMPT Sat Feb 7 08:44:05 CET 2015 x86_64 GNU/Linux
smartctl -a /dev/sdb
smartctl 6.3 2014-07-26 r3976 [x86_64-linux-3.18.6-1-ARCH] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Scorpio Blue Serial ATA
Device Model: WDC WD3200BEVT-00A23T0
Serial Number: WD-WXG1AB002023
LU WWN Device Id: 5 0014ee 2054a2f6c
Firmware Version: 01.01A01
User Capacity: 320,072,933,376 bytes [320 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: 5400 rpm
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Sun Feb 22 20:46:13 2015 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: ( 7800) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 93) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x7037) SCT Status supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 1
3 Spin_Up_Time 0x0027 152 147 021 Pre-fail Always - 1375
4 Start_Stop_Count 0x0032 096 096 000 Old_age Always - 4249
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 100 253 000 Old_age Always - 0
9 Power_On_Hours 0x0032 087 087 000 Old_age Always - 9983
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 096 096 000 Old_age Always - 4032
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 113
193 Load_Cycle_Count 0x0032 162 162 000 Old_age Always - 114798
194 Temperature_Celsius 0x0022 115 096 000 Old_age Always - 28
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 7530 -
# 2 Short offline Aborted by host 90% 7530 -
# 3 Short offline Aborted by host 90% 6969 -
# 4 Short offline Aborted by host 90% 5007 -
# 5 Short offline Completed without error 00% 5006 -
# 6 Short offline Completed without error 00% 3168 -
# 7 Short offline Completed without error 00% 1270 -
# 8 Short offline Completed without error 00% 944 -
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
So it's like I want to continue watching a movie from external drive and then player crashes because my hard disk partitions got unmounted...
I'm wondering if it can happen because disk is underpowered (it's connected only to one USB port because I lost my original USB cable which had two USB plugs). Anyway it would be strange as problem occurs also when disk is 'idle' so then the power consumption is also lower I assume. I can only say this disk was working just fine when used as internal drive. Any ideas?
Last edited by jakub (2015-02-22 20:08:50)

Your recommendation to check cable was just - a good recommendation I played a little bit with the B connector and disk immediately stopped working. OMG it was so simple ;p Thanks. I have to buy a new cable (I hope the case is all right).
EDIT:
Confirmed with portable mp3 player. Cable (B connector) is damaged.
I just won't delete this thread as it's a perfect example to show that basic stuff and simplest things should be always checked first !
Last edited by jakub (2015-02-22 20:28:26)

My WiFi crashes randomly and I need to reboot to get it working again

So I got my Macbook Pro 15" late 2011 repaired two weeks ago. After that the Laptop worked okay and after a few days I upgraded to 10.9.3 (from 10.9.1) and now my WiFi crashes randomly. It just stopes working. It doesn't find the network anymore and if I try to switch it of and on again, it won't go on anymore. The only way to fix this is to reboot the whole machine. This happens pretty randomly.
Currently I don't know if the repairs (Apple switched the logic board) is the problem or if there is a bug in the Mac OS that creates this.
Has anyone else have the same issue on their Mac OS 10.9.3 ? How do I find out if this is hardware related? Rebooting helps, so for me this is not an obvious hardware failure, but what do I know
Bodo

Is it Wifi or USB?
Open console in Applications>Utilities, check the system log for the date/time of the last problem & the Startup right after that for clues.

My Airport disconnects randomly when USB disk is attached..HELP NEEDED !!!!

My Airport Extreme disconnects randomly when USB disk is attached, I have searched this forum but found now obvious solution.
The Airport Extreme has the latest firmware.
Since the airdisk solution is quite useless at this time, I would kindly accept any kind of help .....thanks
Sieber

Len61 got my reply, I have copied below.
Hi - I have been on the phone with support 4X since late December - all good calls. They have been scratching their heads on this issue.
I have 2 printers and 2 drives on the airport -recent experieinces = printers have always behaved, drives have appeared / vanished / "drive needs repair" and it's just fine...
Cutting out the interim fixes, here are the simple but important solutions and everything has been stable for days now.
* rolled back to AEBS firmware 7.1.1
* replaced the passive USB hub with a powered hub ** This is when joy arrived
* make sure your drive has a block size of 512
You can run guest mode however you want, since adding the new hub, it hasn't mattered.
I haven't been brave enough to upgrade firmware to 7.2.1
cheers

Wifi disconnect randomly

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