Q: Lion WiFi Connection Problem

kickassss wrote:

 

Same problem here after upgrade to Lion 10.7. updated to 10.7.1 still doesn't fix the wifi problem

Joining the choir and singing "Me too" is not a working attempt to solve your issue.

What has the file "com.apple.alf.plist" to do with the wifi-problem?

Is there any link ?

The file "com.apple.alf.plist" is needed for the firewall-function.

I have read that this file shouldn't be deleted, because the system won't rebuild this file itself?!

Is it really a good idea to delete the file "com.apple.alf.plist"?

Thank you for your help!

maumusica wrote:

 

you need to delete the fle "com.apple.alf.plist" which is located in: Hard Drive/Library/Preferences/

this configuration depends to the firewall and control outgoing connections.

Deleting it may have helped you in your case as you eventually had activated the firewall.

But it's not a general solution for everyone with a WiFi problem.

Generally, be VERY careful in recommending others to delete or manipulate *.plist files without explaining the reasons and circumstances, as such a step could lead others in serious trouble with their systems.

Do I have to delete the file "com.apple.alf.plist.lockfile", too??

ChristianMoehler wrote:

 

Do I have to delete the file "com.apple.alf.plist.lockfile", too??

I, personally, would NOT recommend this.

Thank you.

I will try to delete only "com.apple.alf.plist".

Personally, I do not use the firewall of Lion.

My problem is, that wlan does not connect automatically after a reboot or sleepmode.

I have delete bluetooth-plists and everything was fine.

But adding the Magic-Mouse and Wireless-Keyboard had the result, that the Wifi-Problem turned back.

Any idea, this Problems depends on?

Do you think deleting "com.apple.alf.plist" would help??

do not trash anything but the com.apple.alf.plist, there is No risk on doing this, i had the same problem with my MBP and i fixed by doing this, as soon as you trash it and restart, when you launch your browser a new updated file will be created. if you dont believe me, dont do it and good luck, i had a problem and solved it, thats all i wanted, to help ppl with the same issue.

ChristianMoehler wrote:

 

But adding the Magic-Mouse and Wireless-Keyboard had the result, that the Wifi-Problem turned back.

In this case, deleting the plist is no solution.

As Bluetooth and 2.4GHz WiFi uses the same frequency you may have interferences.

Using different WiFi channel by setting one manually is more an idea. Try one 5 digits away from the actual one.

You may also enventually force your systems (as your situation allows this) the WiFi router and the clients to use the 5GHz WiFi.

Lupunus

maumusica wrote:

 

do not trash anything but the com.apple.alf.plist, there is No risk on doing this,

Will you be so kind and explain to us in which way this may help christiankoehler with the Bluetooth / WiFi interferences ???

I am running Lion on a mid-2010 iMac and since installing it, I have had continuous wifi drops. I was able to reconnect by switching wifi off and back on again. After searching around various forums for solutions, I believe I have managed to repair my wifi connection. Btw, 10.7.1 did nothing for me.

• In Settings/Network delete all services apart from wifi
• Hit Advanced and in the Wi-Fi tab make sure your network is the only one listed. Make sure 'remember networks you have joined' is checked
• Under TCP/IP,  configure iPv4 Using DHCP and IPv6 Link Local-only
• Under DNS add server 8.8.8.8
• Finally, I think this one fixed it for me, since all of the above have been suggested before, visit your router interface through your browser (I have a Belkin N) and:
1. Make sure your Mac does not have a reserved DHCP MAC address, if it does remove it from the list. Once I did that, a dialog popped up from Networks saying that another computer is using my wireless connection, or something along those lines, but instantly another address was assigned automatically for iPv4.
2. Set the router to transmit on 802.11 b,g and n, in my case I had it transmitting only on g and n.

These steps fixed the problem for me, I hope they are of assistance to you too...

Datalinks wrote:

 

These steps fixed the problem for me, I hope they are of assistance to you too...

That's likely to my expessions before, exept the DNS Server entry 8.8.8.8 what I think is mostly useless as this not replace the DNS Server entry you got automatically from your ISP everytime your router connect.

The 8.8.8.8 entry will only stay as second (on a maximum of three possible) Servers for resolving Names. For that, you may put in the address of any open DNS Server you know.

Lupunus

I tried the bash script noted on oxdaily and some other sites. didn't work.

hopefully, this will be addressed with an OS update.

Sam Beaver wrote:

 

I tried the bash script noted on oxdaily and some other sites. didn't work.

hopefully, this will be addressed with an OS update.

This posting was futile and contains neither information nor useful help to others.

Don't join the "me too" choir and rant.

Instead, If you are seeking for serious help with YOUR issue, start your own question in the appropriate community and provide any information you think that may help others to assist you.

Lupunus

no need to be a jerk guy.

me too joining in case a simple solution is actually found.

"No update ever will fix it. You have to do it."

Rather presumptious and generalized comment coming from someone that has been barking at others about not having all the facts about each individual person's set up and settings before making a diagnosis. 

If there was a simple fix to everyone's wifi issues there wouldn't be 55 pages of mostly "i tried X, Y, Z etc and NOTHING worked for MY problem"

The fact that there are 55 and growing pages suggests that in fact it is NOT an easy fix and who knows, for some folks perhaps an OS update will fix it. Even if it didn't for you.