Apple MacBook Pro is dropping wireless connection:

Question

Level 1

0 points

Apple MacBook Pro is dropping wireless connection:

Hi All,

For the last 2 days my wirless connection is not persistent. it connects for minutes and then it gets disconnected automatically.(says Authentication server is not responding but it is still connected for few minutes). Afer some 2-3 mins connection gets disconnected. If i turn off n on the wireless adapter it gets connected again. below are my system logs, after reading some thread in some forum i understand some Airport issue with the mac pro. Im ready to try out your thoughts,

23/10/2012 23:43:47.011 eapolclient[234]: en1 START

23/10/2012 23:43:47.000 kernel[0]: MacAuthEvent en1 Auth result for: 00:1a:92:b7:b9:3f MAC AUTH succeeded

23/10/2012 23:43:47.000 kernel[0]: wlEvent: en1 en1 Link UP virtIf = 0

23/10/2012 23:43:47.000 kernel[0]: AirPort: Link Up on en1

23/10/2012 23:43:47.000 kernel[0]: en1: BSSID changed to 00:1a:92:b7:b9:3f

23/10/2012 23:43:47.000 kernel[0]: en1::IO80211Interface::postMessage bssid changed

23/10/2012 23:43:47.042 configd[18]: network changed: v4(en1+:192.168.1.7) DNS+ Proxy+ SMB

23/10/2012 23:43:47.047 mDNSResponder[49]: mDNS_RegisterInterface: Frequent transitions for interface en1 (FE80:0000:0000:0000:1240:F3FF:FE9E:4F46)

23/10/2012 23:43:47.048 mDNSResponder[49]: mDNS_RegisterInterface: Frequent transitions for interface en1 (192.168.1.7)

23/10/2012 23:43:47.053 UserEventAgent[11]: Captive: en1: Not probing 'DAVE' (protected network)

23/10/2012 23:43:47.057 configd[18]: network changed: v4(en1!:192.168.1.7) DNS Proxy SMB

23/10/2012 23:44:47.000 kernel[0]: wlEvent: en1 en1 Link DOWN virtIf = 0

23/10/2012 23:44:47.000 kernel[0]: AirPort: Link Down on en1. Reason 8 (Disassociated because station leaving).

23/10/2012 23:44:47.000 kernel[0]: en1::IO80211Interface::postMessage bssid changed

23/10/2012 23:44:47.698 eapolclient[234]: en1 STOP

23/10/2012 23:44:47.919 configd[18]: network changed: v4(en1-:192.168.1.7) DNS- Proxy- SMB

23/10/2012 23:44:47.928 mDNSResponder[49]: DeregisterInterface: Frequent transitions for interface en1 (10.0.2.11)

23/10/2012 23:44:48.057 eapolclient[241]: en1 START

23/10/2012 23:44:48.000 kernel[0]: MacAuthEvent en1 Auth result for: 00:1a:92:b7:b9:3f MAC AUTH succeeded

23/10/2012 23:44:48.000 kernel[0]: wlEvent: en1 en1 Link UP virtIf = 0

23/10/2012 23:44:48.000 kernel[0]: AirPort: Link Up on en1

23/10/2012 23:44:48.000 kernel[0]: en1: BSSID changed to 00:1a:92:b7:b9:3f

23/10/2012 23:44:48.000 kernel[0]: en1::IO80211Interface::postMessage bssid changed

23/10/2012 23:44:48.097 configd[18]: network changed: v4(en1+:192.168.1.7) DNS+ Proxy+ SMB

23/10/2012 23:44:48.108 UserEventAgent[11]: Captive: en1: Not probing 'DAVE' (protected network)

23/10/2012 23:44:48.112 configd[18]: network changed: v4(en1!:192.168.1.7) DNS Proxy SMB

23/10/2012 23:45:48.000 kernel[0]: wlEvent: en1 en1 Link DOWN virtIf = 0

23/10/2012 23:45:48.000 kernel[0]: AirPort: Link Down on en1. Reason 8 (Disassociated because station leaving).

23/10/2012 23:45:48.000 kernel[0]: en1::IO80211Interface::postMessage bssid changed

23/10/2012 23:45:48.938 configd[18]: network changed: v4(en1-:192.168.1.7) DNS- Proxy- SMB

23/10/2012 23:45:48.947 mDNSResponder[49]: DeregisterInterface: Frequent transitions for interface en1 (10.0.2.11)

23/10/2012 23:45:49.636 eapolclient[241]: en1 STOP

23/10/2012 23:45:49.955 eapolclient[252]: en1 START

23/10/2012 23:45:50.000 kernel[0]: MacAuthEvent en1 Auth result for: 00:1a:92:b7:b9:3f MAC AUTH succeeded

23/10/2012 23:45:50.000 kernel[0]: wlEvent: en1 en1 Link UP virtIf = 0

23/10/2012 23:45:50.000 kernel[0]: AirPort: Link Up on en1

23/10/2012 23:45:50.000 kernel[0]: en1: BSSID changed to 00:1a:92:b7:b9:3f

23/10/2012 23:45:50.000 kernel[0]: en1::IO80211Interface::postMessage bssid changed

23/10/2012 23:45:50.032 configd[18]: network changed: v4(en1+:192.168.1.7) DNS+ Proxy+ SMB

23/10/2012 23:45:50.044 UserEventAgent[11]: Captive: en1: Not probing 'DAVE' (protected network)

23/10/2012 23:45:50.048 configd[18]: network changed: v4(en1!:192.168.1.7) DNS Proxy SMB

23/10/2012 23:46:16.619 librariand[259]: MMe quota status changed: under quota

23/10/2012 23:46:26.585 WindowServer[72]: CGXSetWindowListAlpha: Invalid window 0

23/10/2012 23:46:27.587 Dock[130]: CGSReleaseWindowList: called with 5 invalid window(s)

23/10/2012 23:46:28.571 WindowServer[72]: CGXSetWindowListAlpha: Invalid window 0

23/10/2012 23:46:29.572 Dock[130]: CGSReleaseWindowList: called with 5 invalid window(s)

23/10/2012 23:46:30.000 kernel[0]: Sandbox: sandboxd(265) deny mach-lookup com.apple.coresymbolicationd

23/10/2012 23:46:30.211 WindowServer[72]: CGXSetWindowListAlpha: Invalid window 0

23/10/2012 23:46:30.588 sandboxd[265]: ([264]) mdworker(264) deny file-write-owner /Users/macbook/Library/Containers/com.apple.Notes/Data/Library/Notes/NotesV1.st oredata-wal (import fstype:hfs fsflag:480D000 flags:240000005F diag:0 uti:com.apple.notes.externalrecord plugin:/Library/Spotlight/Notes.mdimporter - find suspect file using: sudo mdutil -t 423878)

23/10/2012 23:46:30.594 sandboxd[265]: ([264]) mdworker(264) deny file-write-owner /Users/macbook/Library/Containers/com.apple.Notes/Data/Library/Notes/NotesV1.st oredata-shm (import fstype:hfs fsflag:480D000 flags:240000005F diag:0 uti:com.apple.notes.externalrecord plugin:/Library/Spotlight/Notes.mdimporter - find suspect file using: sudo mdutil -t 423878)

23/10/2012 23:46:31.213 Dock[130]: CGSReleaseWindowList: called with 5 invalid window(s)

23/10/2012 23:46:46.029 WindowServer[72]: CGXSetWindowListAlpha: Invalid window 0

23/10/2012 23:46:47.031 Dock[130]: CGSReleaseWindowList: called with 5 invalid window(s)

23/10/2012 23:46:50.000 kernel[0]: wlEvent: en1 en1 Link DOWN virtIf = 0

23/10/2012 23:46:50.000 kernel[0]: AirPort: Link Down on en1. Reason 8 (Disassociated because station leaving).

23/10/2012 23:46:50.000 kernel[0]: en1::IO80211Interface::postMessage bssid changed

23/10/2012 23:46:50.869 configd[18]: network changed: v4(en1-:192.168.1.7) DNS- Proxy- SMB

23/10/2012 23:46:50.878 mDNSResponder[49]: DeregisterInterface: Frequent transitions for interface en1 (10.0.2.11)

23/10/2012 23:46:52.307 eapolclient[252]: en1 STOP

23/10/2012 23:46:52.631 eapolclient[270]: en1 START

23/10/2012 23:46:52.000 kernel[0]: MacAuthEvent en1 Auth result for: 00:1a:92:b7:b9:3f MAC AUTH succeeded

23/10/2012 23:46:52.000 kernel[0]: wlEvent: en1 en1 Link UP virtIf = 0

23/10/2012 23:46:52.000 kernel[0]: AirPort: Link Up on en1

23/10/2012 23:46:52.000 kernel[0]: en1: BSSID changed to 00:1a:92:b7:b9:3f

23/10/2012 23:46:52.000 kernel[0]: en1::IO80211Interface::postMessage bssid changed

23/10/2012 23:46:52.665 configd[18]: network changed: v4(en1+:192.168.1.7) DNS+ Proxy+ SMB

23/10/2012 23:46:52.676 UserEventAgent[11]: Captive: en1: Not probing 'DAVE' (protected network)

23/10/2012 23:46:52.679 configd[18]: network changed: v4(en1!:192.168.1.7) DNS Proxy SMB

23/10/2012 23:47:00.584 WindowServer[72]: CGXSetWindowListAlpha: Invalid window 0

23/10/2012 23:47:01.586 Dock[130]: CGSReleaseWindowList: called with 5 invalid window(s)

23/10/2012 23:47:01.972 WindowServer[72]: CGXSetWindowListAlpha: Invalid window 0

23/10/2012 23:47:02.974 Dock[130]: CGSReleaseWindowList: called with 5 invalid window(s)

Thanks,

Mak.

MacBook Pro, OS X Mountain Lion (10.8.1)

Posted on Oct 23, 2012 3:10 PM

Reply

Answer 1

iskipper

Level 1

0 points

Oct 25, 2012 12:30 PM in response to replymaki

Once I had a problem like the one you show. I my router closer to improve network connectivity.

This made my connection stable.

Reply

Answer 2

ds store

Level 7

30,705 points

Oct 25, 2012 1:09 PM in response to replymaki

WiFi, Internet problems, possible solutions

Reply

Answer 3

replymaki Author

Level 1

0 points

Oct 25, 2012 3:36 PM in response to ds store

You have a DCHP "lease" which allows a machine to be on a certain amount of time with the router.

Check the time and date are correct in your computers System Preferences and that it's being updated with Apple's time servers.

Check with Airport Utility that there is a update that needs to be applied to the Airport's firmware.

Also run your Software Update fully for OS X too.,

I have done above suggestion but still not resolved. I see an error

AirPort Utility is saying "no configured AirPort base stations have been found. Airport Utility will continue searching." but it's not finding anything.

let me know if i need to do something to resolve this error.

Reply

Answer 4

CMCSK

Level 6

11,452 points

Oct 25, 2012 4:27 PM in response to replymaki

You may have already tried some of these suggestions -

OS X Mountain Lion: Solve problems with connecting to the Internet

OS X Mountain Lion: Solve problems

OS X Mountain Lion: If you can’t choose a Wi-Fi network

OS X Mountain Lion: Join a Wi-Fi network that is protected with Wi-Fi Protected Access

Change your router channel. Sometimes this is all you will have to do.

Power cycling the router. Read the router's user manual or contact their tech support for instructions.

System Preferences/Internet & Network/Network

Unlock the padlock

Locations: Automatic

Highlight Airport

Click the Assist Me button

In the popup window click the Diagnostic button.

System Preferences/Network- Unlock padlock. Highlight Airport. Network Name-select your name. Click on the Advanced button. Airport/Preferred Networks-delete all that is not your network.

Place a check mark next to "Remember networks this computer has joined." Click the OK button and lock the padlock. Restart your computer.

http://support.apple.com/kb/TS1920 Mac OS: How to release and renew a DHCP lease

No internet connection (wireless)

Check to see if an extra entry is present in the DNS Tab for your wireless connection (System Preferences/Network/Airport/Advanced/DNS).

Delete all extra entries that you find.

Place a check mark next to "Remember networks this computer has joined."

Other resources to check into:

Troubleshooting Wi-Fi issues in OS X Lion and Mac OS X v10.6

Configuring 802.1X in Mac OS X Lion and Later

Non-responsive DNS server or invalid DNS configuration can cause long delay before webpages load Netspot

How to diagnose and resolve Wi-Fi slow-downs

Pv6 troubleshooting

What Affects Wireless Internet?

Solutions for connecting to the Internet, setting up a small network, and troubleshooting

Reply

Answer 5

replymaki Author

Level 1

0 points

Oct 31, 2012 5:38 AM in response to CMCSK

Hi All,

I had visited apple support center for this problem and they confirmed that these logs related to network issue. and they tested my hardward throughly, it was good. so I believe that there is someting network issue related. still i dont have successful wifi connection in my home network with mac but successful with my mobile(htc wildfire).

Thanks,

Mak

Reply

Answer 6

Nov 1, 2012 9:01 PM in response to replymaki

I had the same problem with my linksys business router, TERRIBLE! I threw it in the trash and got a netgear with the 2 radios. Havent had one single similar problem since. Or Excuse me, I havent had a single problem since, not one, no not one drop, not one router spontanious reboot, nothing.

Reply