Wifi Constantly Dropping in Lion

This is perhaps just another data point, but I have been running Lion on a new 2.5 GHz Mac mini for a couple of weeks and I have not seen the problem of wifi dropouts. However I am hugely bothered by the spinning wheel and general slowness (relative to my MacBook Air running Snow Leopard). Very long application startup delays. Is there another thread that is addressing that issue (I didn't fine one when I searched)? I don't want to inject a second topic here but I would like to get it addressed by a larger group.

I also wish to add my name. I have the Wifi drop issue on a MBP 2010 13 inch with 8 GB memory and a MB 2008 4 GB memory. (Apple: I am also getting the dread black display crash). Refund?

I solved my iMac dropping the internet problem by going to System Preferences>Energy Saver>Un-Check the "Wake for network access" box. This worked for me. I hope that it will help solve your problem.

For me, i used to have the dropped Wi-fi connections too in Mac OSX Lion.

I think it has got to do with the IPv6 enhancements which didn't work well.. as I fixed it by setting IPv6 related options in the network settings to [Automatic] or something similar for both the Macbook Pro and the router. hope it helps! 🙂

My WiFi connection seems to be behaving better since, at the suggestion of an Apple technician, I changed my router from a WEP password to a WPA personal password. He said that Apple no longer supports WEP in Lion. I now have very few dropouts, no longer wipe out the entire wireless network, and it even connects after sleep.

Interested in whether this workd for you.

I have the dropout problem at home but not at work, i don't what setup i have there. But the disconnect seems random sometimes it happens repeatly sometimes it doesn't happen at all. I have a wpa password at home.

nope. I have always had a WPA2 password on my AEBS and it continues to drop out regulalrly. Only solution is to downgrade from N only to N+G and lose 2/3 speed.

ping solution also has not worked for me. Same request timeout and no route to host messages mixed with successful pings . . .

And another suffering wi-fi drop out (and unresposnive/crashed programs) since installing Lion on MacBook i7 Pro 2011.

Beginning to wish I had waited for OSX 10.7.1 before installing!

I'm in Italy and I also wanted to add my name to the list. Since installing Lion my wifi connection has never lasted more than a few minutes. I've tried all the suggested workarounds to no avail. Every time the wifi comes back on it fails after a few minutes or my iMac seems to self assign an IP to itself and won't connect to the internet. My husband's laptop running Windows connects properly and so does my iPhone (all at the same time as my iMac tells me there's no wifi signal). Please Apple guys come out with an update, I'm losing my patience!

Same issue here with my iMac 27" i5 2009.

Curious I have no probleme with my MacBook Pro 15" i5 2010.

Hi Guys,

My issue more serious than dropping connections. I CANNOT CONNECT!! I keep getting connection timeout from our all office access points. But anywhere else , i can connect decently.

I joined this company for 6 months now and had no problem whatso ever until 1 day after updating to lion. I HAVE NO IDEA , is it software or hardware!! In boot camp also my wireless is not connecting to routers...I cannot believe it is hardware issue because i can connec to all other networks.

Changing the wireless router config is IMPOSSIBLE. it take me 10 days to get appointment to see the IT guys and they are not going to change anyting on router. I end up buying a wireless usb adapter. It is ******* me off. Any help?

Wireless info:

CoreWLAN: 2.0 (200.46)

CoreWLANKit: 1.0 (100.43)

Menu Extra: 7.0 (700.42)

configd plug-in: 7.0 (700.57)

System Profiler: 7.0 (700.3)

IO80211 Family: 4.1 (410.1)

WiFi Diagnostics: 1.0 (100.26)

AirPort Utility: 5.5.3 (553.20)

Interfaces:

en1:

Card Type: AirPort Extreme (0x14E4, 0xD6)

Firmware Version: Broadcom BCM43xx 1.0 (5.100.98.75.6)

MAC Address: e4:ce:8f:03:ae:20

Locale: APAC

Country Code: X1

Supported PHY Modes: 802.11 a/b/g/n

Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165

Wake On Wireless: Supported

AirDrop: Supported

Status: Connected

Hello all,

I have just got off the phone from Apple, and my ISP about these issues we are having with Lion dropping its WiFi connection all the time. Apparently its to do with the channel your wireless router is transmitting on. The guy at Apple said that of the 12, apple products are made to work with 4. These are Channel 6, and Channel 11. I forget the other two. The way to fix it is to go into your router and change the channel from Auto (as mine was on) and set it so that it broadcasts on one of those channels. Its been an hour now and i havent had my WiFi drop out once.

If you dont know how to change your channel, do what i did. I phoned my ISP and asked, they talked me though it and now everything is working great!!!! Fingers crossed anyway!

Good luck

Mine is already set on Channel 11 for G.

But I generally use N which is set to 36.

Hi Guys,

I had WIFI / Internet problems at home and work after upgrading to OS-X Lion. The only way I could get WIFI to work is to turn it off and on... but it would only work for a short duration of time.

I finally got it working fast and 100% of the time by doing the following:

1. First I made a backup of the folder /Library/Preferences/SystemConfiguration (by backup I mean I just selected that final SystemConfiguration folder and copy + pasted it so there was a "SystemConfiguration Copy" duplicate... I didn't end up needing it but was just being safe.

2. I then deleted the original folder "SystemConfiguration"

3. I then restarted the computer: Apple Icon -> Restart

When the computer restarted I launched the browser and it worked (took a second to re-establish the WIFI connection but it works perfectly now!).

Cheers!

Adrian