Q: Lion WiFi Connection Problem

Yes, set Auto Proxy Discovery (Network Preferences>Advanced>Proxies). Worked! (so far)

Well it seems I'm getting inconsistent WiFi start-up after sleep now with 10.7.1

I have found I need to count to ten after opening lid and enering password to start system to allow system to come completely out of sleep mode before attempting internet access. It appears to be operating better. I'll monitor and keep y'all up to date.

I have checked,"Auto Proxy Discovery" in advanced as suggested. Can anyone tell me what the **** that means?

I have the same problem, I know it's a Lion bug because my wife's MacBook Pro, which runs in parallel to mine and which is still running OS10.6 has no problems at all. All this since upgrade my machine to Lion, also a collegue reports similar issues with the same setup. QED?

When the computer first wakes up it will run any maintenance scripts (cron scripts) that should have run on schedule during the night. It also launches off into sync routines and automatic updates. I don't know if there are time delays on these things but often I see the sync icon running and need to let it finish before attempting anything else. iDisk syncs do the same and are notoriously slow too.

Now I set the sleep mode to "never" and have recently taken to leaving the lid open on my MBP at night too, but maybe this is a bit extreme:)

I don't know about Proxies, but the Passive FTP box, at the bottom of that dialogue box, is checked on mine.

I have not had the wifi or freezing problems some others are experiencing. I have a modern router (BT Hub 3) and keep third party software up to date. (Flash, Java, Perian, Filp4Mac, AppTrap, OnyX, Skype, all have recent Lion updates). I also run the OnyX automation script occassionaly, which repairs permissions and clears various caches (it probably does the same as Disk Utility>Permissions, PRAM and SMC resets).

dhwalt,

You are right to avoid using the Power Button, but not just in this case.

Try using the Apple drop down menu to put Mac to sleep rather than pressing the power button; and, do this as a rule rather than an exception.

Generally, it is a good idea to use the power button only in extreme cases or where Apple requires it for resetting PRAM, etc., or to turn on a Mac that had been Shut Down, or when customary methods used in attempts to Force Quit an application do not work.

When it has been sleeping, try waking it by pressing the space bar or any letter key or possibly the trackpad.

Re: Snow Leopard. I actually did have some intermittent WiFi problems that were exacerbated by Lion. But, since loading 10.7.1 yesterday, all seems well on both of my MBP's as well as all the devices. I'm expecting or at least hoping it will stay that way, and so far so good.

....mi sembra preoccupante che il problema del wi-fi non sia stato risolto ad un mese dal rilascio di Lion....comincio davvero a preoccuparmi....forse dovremmo mandare una mail a Steve per saperne di più?

.... it seems worrying that the problem of wi-fi has not been resolved to a month since the release of Lion .... really start to worry .... maybe we should send an email to Steve to learn more?

2 day ago I have only slowly wifi, now after the update 10.7.1 my iMac 2009 have no problem with wifi after start-up but after sleep mode wifi have terrific problem.

I lost, I buy a cable and now Lion go awsome.

SaraSM - Thanks for the reply

Re. "Try using the Apple drop down menu to put Mac to sleep rather than pressing the power button; and, do this as a rule rather than an exception."

In the above instance No WiFi + No warning dialog. A greyed out Wifi icon that requires a choice from the dropdown menu.

Better to let the iMac sleep from idle and WiFi is never lost.

Was having wi-fi drop issue with my late 2009 iMac.  Full wi-fi bars all the time, but connection would drop all the time.  tried all the suggestions in this thread to no avail.

updated to 10.7.1, deleted preferred networks, then added my home network back on.  Was online for 12+ hours and thought 10.7.1 fixed the problem.  Now it has just dropped again.  Same behavior:  full wifi bars, but no connectivity.  So frustrating!  Never had any issues under Snow Leopard.

Seems that 10.7.1 solves the basic problem but if you have the time I tried what you did and still had the same problem as you have.

So I deleted all network and created a new one and so far so good my 4 Macs are working on the new network even after sleep has been on for a while.

Using the Time Capsule, set the new WiFi network while the Time Capsule is related to your computer.  Than restart your Time Capsule using the Airport restart and hopefully you will have the same result as I have to date i.e half a day of being able to work normaly.

It could also be wise to restart your computer after having tested that the connection is good.

Good luck and let's hope that the next upgrade will bring back the speed that was so contant with Snow Leopard.

What The $$@#?

Installed 10.7.1, did NOT solve the wifi reconnection problems, caused my Safari to crash THREE TIMES TODAY so far - in such a way that I have to power cycle my Macbook.

APPLE PLS DO SOMETHING!!!!!

Sending in reports, weeks into this new OS, installed the first (bug fix) upgrade 10.7.1, NADA, NOTHING.

I am becoming more and more p'd off every time Safari crashes at me randomly.

Get the new version of Adobe Flash.

Most Safari crashes are because of Flash content. I'd also reset Safari, delete all cookies and  empty the cache.

I thought my problem was fixed because I had WiFi from early last night, after 10.7.1 was released, until a short while ago. But, when I tried to open Safari about ten minutes ago, I could not load the home page. And, the beachball kept on spinning. I tried three of four times with the same result. Each time I had to force quit. Finally I shut down and restarted my MBP and Safari works again.

I had reset Safari, deleted all cookies and emptied the cache a few days ago, with no luck. But I will get the new version of Flash and try again.

i'm still having hte same issue after updating to 10.7.1. My issues is that if put my computer to sleep when I'm backing up to my 1st gen timcapsule, my wifi won't work when i wake my computer until the backup times out due to lack of wifi. once the backup quits (about 1-2 minutes), then the internet connects and i have t ostart my timecapusle backup all over again. rather annoying. what's the point of a laptop if i can't put it to sleep and move it around without losing wifi and my currect backup?

I just spoke to Apple Support after being extremely disappointed that 10.7.1 did not fix my wifi disconnect on boot or restart problem.  Tried a couple of things but the solution came after following this process.

1. Open System Preferences, and then Network.

2. Click on Wi-Fi in the left hand column (make sure the padlock in the bottom left corner is Unlocked).

3.  Click on Advanced (bottom right)

4.  Under the Wi-Fi tab there is a box labeled Preferred Networks.  I had many networks in this box. Select them all and then click on the "-" button.  This will delete all the preferred networks.  Just a side note, I always have "Remember networks this computer has joined" ticked.

5.   Click OK.

6.   Click on Apply.

7.   Close System Preferences.

8.   Restart your machine.

9.  This is where things got very exciting, as for the first time since upgrading to Lion the wireless connection actually connected.  The Apple Rep then asked me to restart again just to check, and it worked again.

NOTE: I did not have a problem with the wi-fi dropping out once the computer was started.  This fix was for a problem with the wi-fi not connecting on Start Up or Restart.

I would recommend Apple Support, they rang me back within one minute and he said that there was a list of things that they could try.  He was very helpful and the advice was step by step.  The link to the US Apple Express Lane is  https://expresslane.apple.com/GetproductgroupList.do

(other countries, choose before you start or you will have to repeat the process).  Just continue through the process - it only takes a couple of minutes.  The articles didn't help me, so I hit continue, got them to call me and now all is well.  Now I can update the family computers and use the same fix if there is a problem.  The Apple Support guy also said that I can use the case number to call again and get assistance with the other computers, if they have the same problem.

Good Luck!!