Installation went great, but now the internet doesn't work

same with me...
alice modem (siemens) with airport express - worked fine until I updated my mbp 13" to snow leopard. full reception over airport but no connection to the internet. not even over ethernet. I have tried basically everything mentioned in this and in a couple of other threads but nothing really helped. resetting all the hardware, setting up new locations, deleting some settings...no internet for me but it works fine for my girl's macbook with leopard and my iphone. the strange thing is though, that my iphone and my girl's mb loose their connection as soon as my mbp wants to connect. they won't connect after restarting router and airport again.

cheers
tibor

maybe we have to buy a new router? groupbuy anyone? 😀

(50% provocative joke 50% working solution, since my snowleo works with neighbours modem/router)

Message was edited by: mflux

Don't waste your money on new routers. I am using Apple's simultaneous dual Airport Extreme Base station and still have wifi problem with Snow Leopard. All the components of the home network are from Apple at my home and I still have problem with my 2008 model mac mini whereas my 2009 model mac mini is working fine.

None of this has worked for me. Any answers Apple?

helped me: enter the dns-server manually.

I have been all over on this issue... I started off with my AT&T 2WIRE dsl modem serving as my wireless provider, and was having connection issues - mostly after waking my MacBook Pro from sleep. (Exclamation point on the Airport icon in menu bar)

I decided to get an Airport Extreme, since I use all Macs at home. I had some questions about how to best set it up and wound up putting it in bridge mode, and hooking up my iMac to that, shutting down the wireless on the 2WIRE, and using the Airport for wireless.

I created the new network, and all was well... Then it happened again. After sleep - no connection.

So... This still seems to be a mystery!

well, it seems that the WEP implementation in SL is buggy. For me, changing the location to something else than Automatic + renew the DHCP didn't work at all. When I tried to connect it seemed Airport didn't even try. So that made me try changing the security on my router. I tried the following:

open netwerk (no security) > works perfect
WEP > airport cannot connect in any way
WPA > works perfect

So try to change the security settings on your modem/router to something else than WEP (open/shared). I think changing the location only works if you don't use WEP.

I'm using WPA and I'm experiencing the same exact problem. Just installed 10.6.1, rebooted and still having network issues.

Created new location doesn't help. Where is Apple on this issue?? I shouldn't have to do a new install just to upgrade my OS.

My issue got resolved mysteriously today right in front of Apple engineers who had come home to debug this issue. It was a mix of elation and embarrassment. Read more on this thread http://discussions.apple.com/thread.jspa?threadID=2141344&tstart=0&start=50

Hi Guys,

To solve my wireless not working after upgrading to 10.6, I hooked up my ethernet cable to router to check that was working. It was, so I downloaded the 10.6.1 update and the problem was fixed.

I made sure to create a network location incase the automatic setting has issues in the future.

I am running 02 wireless box, and since updating to SL and 64 bit Safari, the internet seems a heck of alot faster! 🙂

Yes, the patch can help some of the folks here as it fixes a DNS issue as per the Apple engineers.

I just did a clean install (as in FORMAT and INSTALL) and I'm still seeing the same issue. This is not upgrade related 😟

hi guys,

I was also one of you before I figured out the problem. Full bar connection to my router and safari dropping in and out constantly, basically what it came down for me was changing an option in my router settings to NOT use my router as a dns server (this was in the dhcp settings) instead I used opendns.com

and put in 208.67.222.222 and 208.67.220.220

for some reason I suspect this is not actually related to my router, but something messed up in how SL deals with DNS's as I had a friend who had the exact same problem, totally different router and it worked for him!

Hope this can help some of you.

I also upgraded to the latest patch of SL and turned the setting back onto use my router as the dns server and the problem returned immediately.

I've tied all of the solutions above and not one of them has worked. My router uses Open DNS IPS for the DNS and Snow Leopard will not access the internet with those IPs or without those IPs. The 10.6.1 upgrade has not fixed the problem either. Have reverted back to Leopard for the second time.

My wireless loses connection every 10 to 15 minutes. To get connected again I have to "Turn Airport Off" and then turn it back On on my MacBook.

I kept a ping running to www.yahoo.com and www.google.com and found that I get intermittent "Request timeout for icmp_seq" even when wireless seems to be working works. After around 10 to 15 minutes when wireless stops working i get continuous thread of "Request timeout for icmp_seq".

I went to apple store to make sure its not my router. I experienced the same problem connected to the wireless in Apple store. I showed the problem to Apple Genius and he booted the computer from external hard drive with Leopard installed on it. He tested the connection and there were no timeouts. He concluded it may be because of bad upgrade and suggested a clean Snow Leopard install.

I did a clean install of Snow Leopard on an external drive and booted from that. Problem still exists. The problem is not upgrade related.

Wanted to make sure that it really works with Leopard, so I installed a clean copy of Leopard on my external drive and problem is fixed.

I tried creating a new "Location" and other suggestions in this thread on by Snow Leopard installation but nothing helped.

Anyone has any suggestions?

Apple: Any comments?