Dropping Wi FI Signal

There appear to be two solutions. First, go to your user preferences in you user Library and delete the two plist items with the name "internetconf" in them restart and go on line. If that does not work then, if you are using and wireless router, go to you routers wireless setup and change 802.x to either the g or b mode. In my case the setting was b/g and changing g did not work for me but b did. I have no experience with the n mode. Other have has success with different fixes but these two appear to be the only two consistent ones that work.

I tried everything! And I don't use router. I try to share Internet from iMac's AirPort to MacBook & iPhones.

This is completely annoying.

Same story - right after ugrading to SL the Wifi connection at the university stopped working for me.

Open public Wifis seem to work, but the WPA2 - network at the university (ottawa) can't identify me anymore. Never had this problem before with Leopard.
Deleting the airport profile and creating a new one after rebooting only helps for a short while.

****!

Kind of Ironic that I cannot create a USer-account for this forum using Safari and have to switch to Firefox to get inte the discussion. But that´s another issue.

I have had the problem discussed here since upgrading to 1.5.8. Upgrading to SL did nothing to help out, neither to 1.6.1. I have spent well over 50 hours trying to solve this issue. I tried em all until I gave up. It happened on both my networks, at my house and in my shop, using only Apple products (Airport Extremes). Also it occures on two differenet portables. On MBP first gen. And a more or less brand new MB...

I tried all but one thing it turned out. Until recently. Both my separate networks always (or at least for a long time) had an Airport Express attached, to play music, but also to extend the network. Some hours ago I decided I´d unplug the one here at my house, and turn the Ability to Extend my Aiport Extreme off. This has prooved, so far, to do the trick. Now, I only use my Airport Express for Airtunes, streaming music. I´ll try this state at my house for a couple of days and see if the network is stable. If it is, I´ll let you know here in this forum, then I´ll reset my Airport Express to factory setting and set it up, not to extend my Network, but rather only to be used for Streaming my music.

Haha! Forget it already. While writing this, my network disappears again. It was a dud. I alreadsy gave it up once, and decided I would not spend another minute on the issue. I should have stuck to that decision. Please, Apple, do something before you drive me nuts. Now I am giving it up for sure. I´ll just have to put my faith with Apple.

I'm having the same problem with my mac mini, which is about a year old now.

It continously drops the signal.

Purchased a new Belkin N+ Wireless Router to see if that was the problem and no change.

My 7 year old Dell windows laptop using a netgear external wireless usb adapter picks up the signal from further away... So does my iTouch from the same distance.

The mac mini needs to be in the living room against the wall which is nearer to the Belkin router and it still drops the signal and if it does connect, it is a very slow connection.

So my 54 G Linksys wireless router wasn't so bad after all.

I was able to sort out the dropped connections issue by switching over to a USB WIFI dongle and switching off Airport entirely. So far, so good.
Here's my post on it in another thread:
http://discussions.apple.com/thread.jspa?messageID=10381161#10381161
The problem appears to be with how Airport functions, and by functions, I don't mean the Airport Utility or the Airport card itself - I haven't used AU for a couple of years because I don't use an Apple wireless router any more. I know it's not the card, because I have the exact same problem with my 2006 white MacBook 1,1 after installing SL on both machines.

Count me in!

MBP from 2006, Netgear DG834Gv4 at home, Zyxel router at work.
Tried: delete .plist files (various combinations), changed channels on router, rebooted multiple times, changed MTU on router (from strange value), uttered magic words above router, looked for firmware upgrades to router, looked for open-source firmware for router etc etc

Started with 10.5.8 and continues with 10.6.1

No solution in sight and no genius bars in Sweden...

/Anders

I have tried many solution too but am still losing connection to the Router and internet even though my Airport symbol indicates I have a strong signal and everything is OK. This is happening with multiple browsers. To me its definitely a network issue. I am wondering now if their is a lapse in the encryption process between the computer and router? I am just guessing but my only temporary fix is to turn off Airport and then turn it on and re establish a connection. As I say I have updated my routers firmware (router Linksys WRT54GS) and have tried resetting the network connection, Safari, and everything else I could think of. This is occurring on two different Mac's but both do have Snow Leopard.

Further update: The malfunctioning modem/SL combo involves a Qwest supplied Actiontec Wireless DSL Gateway GT701-WG. And yes, I've updated the firmware, and it's using Qwest service. I've also tried the idea of creating a new location.

Message was edited by: Jodin

I fixed this problem by setting my IP through the router (paired with my MAC address), not setting a static IP on my macbook.

Yes, there are problems certainly problems with wireless in Snow Leopard, but remember that wireless is very fussy for everyone (Mac users don't notice this as much as Windows users do) and the problems are often "compatibility" issues, meaning there are two sides and changing the other side might solve the problem. That's why it's important to try everything.

Turn off IPV6 in network settings
Manually change your DNS server (try OpenDNS)
Change channels on your wireless
Turn off "n" mode (limit to g only)
Make sure you are using WPA
Try other wireless points, preferably with known parameters.
Check your wireless firmware
Take your laptop to Genius Bar and let them check it out.
Buy a wireless router (that you can return) that advertises Snow Leopard compatibility, return if doesn't work. This is, of course, if you don't have an Airport.

Even try the "ping" trick or any other "keep alive" utility and see if that works.

Try one test at a time and see what changes. When appropriate, change the setting back before moving on to another test.

In the meantime, remember that Apple while find most of the various bugs and workarounds. And don't forget the Ethernet connection in a pinch.

Stiff upper lip...

Tod

I had a mac mini serving as a router to route internet connection from ethernet over wifi.

Everything was great until Snow Leopard upgrade.

It took a week before and endless complaints from my wife about unreliable internet before I narrowed it down to the Snow Leopard upgrade. I've now downgraded back to 10.5.8

I will install Windows 7 on my mac mini on the 22nd.

I tried everything I could find on this forum and the only thing that fixed it for me was turning off UPNP on my WRT54GS router. Since them I've been rock solid--knock on wood.

hi - would you be able to break that down for me?

I am having some interesting problems with my WiFi set-up... out of the several WiFi enabled devices in my house, the only two who have some issues getting on the WiFi network are two Apple ones sadly 😟...

The main issue is with my MacBook Pro (Unibody, Broadcom WiFi chip) which will not be able to keep a connection if I let it use DHCP to configure itself according to the router's instructions, under OS X I need to configure it with a static IP address for it to stay connected.

I also have Windows 7 x64 RC1 installed and the funny thing is that even with the default Bootcamp drivers it would connect to the same WiFi network using DHCP and keep a stable albeit slow connection (much faster now that I have upgraded those drivers).

This makes me think that it is an issue of the Mac OS X Broadcom WiFi drivers and how they interact with the rest of the system since on the same laptop, connecting on the same WiFi network through the same WiFi interface one OS cannot connect using DHCP while the other one can without any problem.