WiFi Disconnect/Signal Loss

I recently bought an Airport Extreme WiFi n router to replace my older D-Link router which suffered from disconnects.
The Airport Extreme worked well for about 1 month without a glitch (and I haven't changed the settings) and all of a sudden I get Wi-Fi disconnects.
To reconnect to the wireless network I must unplug the router for 30s every time.
I have the same problem with every computer at home with WiFi (4 :D) which include Windows PCs too.
I am also running the latest firmware for the Base Station, the Laptops, the iMacs everything.
Any ideas? Is this a known bug? Should I just return it for a new one?

I have a similar problem that started about 2 weeks ago. After using WiFi for about 30-60 minutes, I get a disconnect. The only way I can reconnect is to reboot my Macbook Pro. If I turn off airport and turn it back on, it will lose the ability to see any of the local networks in my area. The problem seems to have started after I updated to the latest version of Tiger and airport. I have done all the obvious things like set up a new network, etc. Nothing prevents the disconnect. Any thoughts? Could this be a preference problem? Or ddoes this sound like a hardware issue?

Similar Messages

(Bug) Google Talk on webOS 2.1 doesn't re-login after signal loss

Device: Palm Pre 2
WebOS version: 2.1.0
Issue: Google Talk does not automatically re-login after signal loss (and sometimes gets into a state that it cannot re-login at all)
Description: Whenever I lose signal (go in the elevator, into tunnels on the subway, etc...) I get logged out of Google Talk. On Palm Pre + with 1.4.5 on ATT i would never have a problem as it would always log me back in automatically as soon as (or shortly after) signal was found again, whether wifi or 3g/edge. But on Palm Pre 2 with webos 2.1, it stays logged off. I can manually set status to Available to re-login, but its really annoying and clearly used to work in the past. Additionally, in certain circumstances I get disconnected and CANNOT manually log back in. I try to set status to Available but nothing happens, no spinner, no nothing. The only way to get this to work again is if I do a restart (or Luna restart). I've notice this happens at my school where 3g connectivity is really poor and frequently I don't have any. Instead I connect to the school's wifi network which sometimes disconnects. After losing connectivity too many times and/or too many login failures, it just stops allowing me to re-login, even manually, until I restart.
This is really annoying and is a regression as it used to work in 1.4.5. Any ideas how to fix it and/or if a fix is being worked on would be greatly appreciated.
More info can be found here: http://forums.precentral.net/webos-discussion/282197-google-talk-webos-2-0-doesnt-re-login-after-sig...
Thanks.
Post relates to: Pre Plus p100una (AT&T)

Yes, this forum is frequented by HP Support personnel, though this is not an offical avenue of support for HP customers. The official avenue of support is calling HP Support on the phone. You can also contact HP here: http://www8.hp.com/us/en/contact-hp/contact.html

Periodic signal loss on DCT700 digital adapter

Our kitchen TV is connected to the FiOS ONT via a basic digital adapter (Motorola DCT700/US). On some TV channels, the sound disappears and the picture freezes for up to a few seconds at regular intervals.
The problem affects only channels 11 through 25, as far as I can tell (I didn't try every single one!). It occurs at the top of every minute, at the instant when the on-screen clock display rolls over to the next minute. Sometimes the event lasts for only a second or so, in which case the sound resumes and the picture unfreezes after the interruption. If the signal loss persists for longer, I get a gray screen with a message that "the channel is having technical difficulties" before the program resumes. Either way, it's very annoying.
If I'm watching the same channel via the SD set-top box in the living room, or via either of the CableCards in the TiVo DVR, there is no interruption of sound or picture.
The DCT700 was installed and activated by the Verizon rep as part of my FiOS installation two weeks ago. I don't recall the problem showing up when he performed his final checkup before leaving, but it's possible we chose channels outside the range mentioned above and/or weren't watching the TV during the fairly short time interval during which the problem occurs.
I tried disconnecting the power adapter from the DCT700 for about a minute, but the problem was still present after the DCT700 restarted.

DukeDog wrote:
I pulled the plug and re-plugged all 3 adapters and none of them show a channel number. Very odd. And none of the of the manuals even reference the problem to find out how to correct it.
Do you have any idea why I'm not getting channels like CNN? Am I supposed to be getting channels like CNN?
The "trick" of unplugging should resolve the channel display issue (it only shows up for a short period in the bottom left of the TV screen immediately after changing channels).
As Matcarl said, if you are not getting all the SD channels you are subscribed to you need to contact Verizon as the boxes have apparently not been provisioned correctly.
If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.

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?

Wifi disconnect with in 5 min

Wifi disconnect with in 5 mins

Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
Additional things to try.
Try this first. Turn Off your iPad. Then turn Off (disconnect power cord) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
Change the channel on your wireless router. Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
Another thing to try - Go into your router security settings and change from WEP to WPA with AES.
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

Strange macbook pro wifi problems - selective wifi disconnection

I have 3 macbook pros, two iphones and an apple TV. My primary macbook pro has some very unusual wifi problems that are hard to pin down. It frequently disconnects and reconnects itself to the internet constantly throughout the day. I've been testing it in various ways and today I noticed the strangest anomaly by far.
While working today, my primary macbook pro could not connect to the internet through any of the 3 browsers I use. Airport Utility said the internet was down (internet icon was amber, airport icon was green). However during this disconnection, my p2p application (Soulseek) experienced no disruption of service and continued to download files. I opened my second macbook pro and strangely enough, the 2nd mac was able to connect to the internet through browsers without issue, and the airport utility on the 2nd macbook pro said the internet was connected. My Apple TV was connected too as well as my iPhone.
It is often difficult for me to troubleshoot network problems because there are so many variables (ISP, airport assembly, airport base station, OSX, airport utility, modem) but I guess in this particular instance, it seems clear that the problem has something to do with my macbook pro.
My primary macbook has always had wifi problems (and honestly, my last macbook--the one that actually worked today!--had similar issues back when it was my primary laptop). Last week, my primary macbook pro had the topcase, display and logic board replaced by Apple. When it came back, it had the same wifi connectivity issues it always had. Often, a restart will be a very temporary fix, but not always.
I am at a complete loss for what could be causing these lapses in service. In fact, right now as I was trying to access these forums, I could not even get my primary macbook to open the Apple Support Site on any browser. Every other website would open, except Apple Support. I opened my 2nd laptop and it opened Apple Support just fine. After 15 minutes, my primary laptop finally opened up an Apple support page in Firefox.
It is really hard to diagnose the problem. I find that Airport Utility has been so pared down and streamlined to the point that it is worthless. It is basically a blank window with 2 application logos inside. It looks very simple and user friendly until it has a problem, and then it tells me to do something very technical without an explanation for the layman (such as assigning DNS servers or putting the airport in Bridge mode). I always follow Airport Utility's advice, but I still have odd problems. I am often confused as to whether I should use Airport Utility or the Network button in System Preferences. They have the same options, but they're arranged under tabs with different titles.
Anyway, does anyone recognize these macbook pro wifi connectivity problems? Constant wifi disconnection on one machine (while all others experience no connection problems) coupled with instances of selective disconnection (like browsers not connecting while p2p is able to connect or browser connecting to some sites but not all?)
Thanks for any help or guidance
PRIMARY MACBOOK PRO
2014 Retina Macbook Pro 15" OSX 10.9.4
AirPort Utility 6.3.2
AirPort Express 7.6.4
SECONDARY MACBOOK PRO
2013 non-Retina 15" OSX 10.9.4
Airport Utility 6.3.2
AirPort Express 7.6.4

Same exact issue here. It happened once when I updated to Mavericks 10.9.2. It just happened again last night and I can't seem to fix it.
I tried all sorts of things like deleting the SystemConfiguration folder, PRAM, SMC, DNS flush, etc. Nothing helped. As I recall, the last time it happened it mysteriously fixed itself after a day or two.
Very weird problem. I have been troubleshooting computers my whole life but this one is tough to figure out. Other machines in the house connect up just fine.

WIFI & Phone Signal Fluctuation

Ever since my 2.0 update, the wifi & phone signal fluctuate randomly. Sometimes the bars are 5, then suddenly 0, wifi keeps disconnecting and asking for the wifi password again, is this an update issue?

Matt Symons wrote:
With WIFI Turned on and 3G Turned off - Full Signal for most of the day!
3G Turned on - Signal lowers to 1 Bar in my area!
Is this because the phone is showing me the signal strength of 3G instead of the Phone signal itself?
Did you read my first post, or any of the others? I'm not sure what you mean by "Phone signal itself". 3G signal covers both voice and data, except when Wi-Fi is on. The signal strength (bars next to AT&T) is the strength of the cell network signal. If 3G is on and received, it is the 3G protocol. If 3G is off or not available, it is the Edge/GSM. If Wi-Fi is on, the phone doesn't show which one - only the Wi-Fi icon with its signal strength - when you turn Wi-Fi off, it will display which one.
Your phone dropped to 1 bar with 3G, because the 3G signal is weaker than Edge/GSM in your area. If you read the article I referred you to, you'll see that the number of bars isn't so important with 3G - for voice or data.

Any noticable signal loss with the DVI-to-video adapter?

Hi, there. Would any of you happen to know whether there's an appreciable signal loss when converting from DVI to, say, composite video via the DVI-to-video adapter? I'd like to hook my MBP up to an HDTV (when I eventually get one), and I'm wondering if going through the adapter would produce a degraded picture for DVDs, compared to a direct digital connection from a DVD player to the TV.
Actually, I'm wondering the same thing about the audio connection. Any loss in audio quality when using an adapter to connect the MBP's mini-jack to an HDTV or receiver?
Thanks much.

ragamoffyn,
While there's no "signal loss," as such, there is a considerable loss in signal quality. However, you're over-thinking this...
HDTVs accept HDMI connections, and your Macbook Pro has a DVI output. The ports are dissimilar, but digital video signal is the same. In other words, you would simply use a DVI-to-HDMI cable. In fact, many HD cable boxes (mine included) still have a DVI port, not an HDMI port. There is no loss of signal or quality.
Really, the only difference between DVI and HDMI is the fact that HDMI transmits both video and digital audio. DVI doesn't do this, so you must resort to transmitting audio separately. Not a problem: use an optical digital cable, which your Macbook Pro will accept (as will most HDTVs). That said, you might be better off connecting the audio portion of your MBP's output to a home entertainment (surround sound??) receiver.
Now, I'm not sure about the "progressive scan" capabilities of the Macbook Pro and DVD Player. You'll have to research that yourself. I can tell you that normal DVDs can be "upconverted" by a progressive scan set-top DVD player, and the result looks absolutely stunning on an HDTV. It's not quite as good as full HD, but it comes pretty close. Also, many newer units are being made with HDMI ports. In other words, the DVD is upconverted, and the result is transmitted over a full HD connection. Best of all, these set-top boxes can be had for under $100.
BTW, the composite video you suggest is simply "standard definition," and not the best SD at that (S-Video is better). Component video (where there are three separate "RCA"-type connectors) is much, much better, but even that doesn't match digital (DVI or HDMI). Also, the DVI-to-HDMI cable you will need can be had at Walmart for around $30. They can also be found at places like Best Buy or CompUSA, but these retailers tend to over-charge for over-blown items (No one needs a "Monster" HDMI cable that costs over $100, and which does no more than the $30 cable from Walmart; digital is digital).
Scott

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?

Wifi disconnect issue w new Mac

I bought a new Mac about a week ago. Right away I started experiencing wifi disconnect issues. I called customer support line and they had me reset the eprom. I don't recall the key sequence now. The problem went away for a week but has now returned. Is this a hardware quality issue?

right my friend, you know this is not an uncommon issue with mac, all my macs have the same issue (macbook, mac pro, mac mini and older imac), i disconnect the wifi and reconnect to sole the issue. it depends alot on what you have thats goign on around you, if there is a lot of wireless networks in your area then this might cause the issue. i improved this problem using a time machine and set the wireless to 5ghz only - it helped. i also bought an airport express to strengthen the network and touchwood this is a rare problem for me now!
try moving the modem around in case it this - ensure its not on the floor or touching the floor, there are many tips for improving modem connections look on youtube
however the sequence for this is on
http://support.apple.com/kb/HT1379

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

I have a airport extreme as my base station. I am experiencing a large signal loss in a particular room. Will an airport express restore that signal? l

I have an airport extreme base station. Experiencing large signal loss in a particular room. Will an airport express, placed in that room, restore the signal? Thanks, Glenn.

The Express can only "extend" the bandwidth of the wireless signal that it receives.
So, you would not want to place the Express in the same room where you need more signal, you would want to locate the Express approximately half way between the AirPort Extreme and the area that needs more wireless coverage.

I bought a new Iphone 5 Friday the battery goes flat in less than half a day also the wifi disconnects in less than 40 secs

I bought a new Iphone 5 Friday the battery goes flat in less than half a day also the wifi disconnects in less than 40 secs this is really frustrating I think I have a dud phone or is this the new IOS6.1 software update?

Basic troubleshooting steps clearly outlined in the User Guide are restart, reset, restore from backup, restore as NEW device. If you've been through ALL the steps listed and you're still having problems, then you'll need to bring your phone into Apple for evaluation and possible replacement.

Wifi disconnects when waking from sleep mode; running Mountain Lion

Had this same issue with Lion as well,, wifi disconnects when waking from sleep mode,,,any ideas how to fix this pesky issue?

Hi Sky,
This has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7…
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.
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.
Also, turn off IPv6:
System Preferences » Network » AirPort » TCP/IP tab » Configure IPv6
Or whatever Interface you use.

WiFi Disconnect/Signal Loss

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