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Since upgrading my Fall 2009 21.5" iMac to Lion my wifi connection will drop out about every minute and the I have to turn Wifi off and then back on to get it to connect again. Is there any known way to fix this? Any suggestions will be appreciated
Thanks
iMac, Mac OS X (10.7)
Hi All,
If you updated from 10.7.3 to 10.7.4 and then got wifi dropping problem, look the posts at this thread
I hope that this is still working for you? I can't get a connection to update... €{%|>£#]{* hard to believe that this problem continues
Have you checked if there is a firmware upgrade for your Linksys AP ?
Hello! I set my wifi router to only works with the G network mode, not N, and the drops are gone. It's not the best solution, but at least my Imac isn't dropping all the time. It's a linksys router.
Cheers!
Really annoying,
new MBP (2 weeks old) running Lion 10.7.4 and I have to face constant dropping WIFI connections :-( Same network with a second MBP running Snow Leopard without any Wifi issues! I changed the router channels and installed a new “location” without any improvement.
Well done Apple :-)
Yes - it is annoying. Wondering when this issue is going away....
I was running 10.7.3 earlier and updated to 10.7.4 end of last week. Since then my WiFi connection dropped constantly ... again... as I had the same issue with 10.7.1 and 10.7.2 earlier. To solve it, I changed the router configuration (AVM Fritz 7270) to stop using "optimized 300 mbit/s channels". This solved the problem.
As I switched the router software end of last week too (same time as switching to 10.7.4), "usage of 300mbit/s channels" was ticked again. Once I switched it off again (this morning), WiFi seems to work again... (at least so far for a few hours without interruption).
As you seem to be based in Europe, you may try to avoid usage of channels 12 and 13 for WiFi...
Hope this helps to sort your issue.
I'm willing to try the same thing. I have a Linksys E3000 (802.11 a, b, g, n compatible. Where within the router's admin pages do I turn off "n"., leaving the other standards unaffected? thx
Latest iMac WIFI to Verizon MIFI disconnecting issue and solution :
After two days of no disconnects, I think I've found a solution! (knock on wood) A level 1 tech at Verizon suggested trying a Wireless USB adapter with Mac OS drivers.
I purchased a Wireless N USB adapter (Airlink 101) for $13 at Amazon which included Mac OS drivers on a CD and the connection is working fine.
With gratitute for Verizon having tech folk to at minimum, "LISTEN" TO THE ISSUE, I can put this time consuming wifi problem behind. Apple may want to take note ... if anyone is listening ????
maybe its not imac/Lion issue. i got wifi drops on ipad, iphone or imac. the common is the Time capsule gen4 with Firmware 7.6/7.6.1.
after crashed Time Capsule Gen1 (works fin over 3 Years) i get a new TC gen4. now i have Wifi drops during time periods other peoples are coming home (evening) or weekends.
same place, same neighbors but other Time Capsule. Apple support could not help, tried all forum posted ideas, changed to all channels ... nothing is helping. changed the TC same issue.
difference:
the old TC gen1 hat a wifinoise iinterferenc button under 7.5.1 Firmware, the new TC gen4 does this Version no mor support, with 7.6 and above is this noise-buttom no more available.
i think its not imac/lion issue, id could work, but nothing is shure. changing neighbors and tomorrow you have wifi drops. i'm locking furture with apple support, but this guys in front does not understand the issue ... box back to sender .. this does apple not interest.
why apple is changeing running modes - not allways new is better 😟
Some people have changed the MTU setting in
System Preferences -> Network-> Airport
down from 1500 to (customized) 1280 and saw
their wireless issues solved. I'm one of them.
This is weird. I had this problem for quite a while. When I disabled 802.11n, it went away. After 10.7.4, I re-enabled 802.11n, and it works fine now. My router is a MicroTik RB751U-2HnD.
Cheers,
Alan Shank
Woodland, CA, USA
I set MTU to 1492 some weeks ago (page 120 of this topic).
Also for me the issue is disappeared so far!
MTU you can change on Mac, but not on the iPad and this is not working. there is no option setting possible about.
No, you can't change on ipad... but I think it's a different issue...
I have an iPad 2 on the same network, updated to last FW version, I've never experience the same problem...
I posted this on another post--same topic. Good luck!
I've tried all the solutions posted on the internet:
-Rolling back the wifi driver
-Adjusting MTU
-Running background internet activities: ping and Pandora
-Deleting network settings: preferred network, keychain, etc.
-Resetting PRAM and NVRAM
-Router Settings
It has been a frustrating process trying to resolve this issue.
I finally have stable wifi on my 21 inch iMac.
I downloaded Signal from the App store, and played around with the recommended channels.
I tried channel 11; it worked for a little bit, but it eventually started dropping.
I switched to channel 1, now I am on day two. Wifi has no issues when after waking, and no random drops.
Wireless experts recommend channels 1,6, and 11, so I would start with those settings.
I hope you guys have as much luck as I did with this solution.
Wifi Constantly Dropping in Lion
