AirPort connected but Safari says buffer space exhausted

hi.
I just started my MacBook pro and it connects fine to my AirPort Network. But in Safari I can not open any page. It tells me the buffer space is used up nsposixerrordomain:55. Does anyone know what that means and what I can do about it?
thanks in advance
Best
Rob

I had the same issue after I Stopped my Mac from Syncing and Deleting the Mac from the Sync list. I tried everything and ended up reinstalling. I wished I had known of the Cocktail fix before I Clean Installed my OS! On a positive note , after reinstalling everything its seems much snappier after the effort. This was the same debacle I was in when I Upgrade Installed in the first place. A Reinstall with Preserve settings yielded no fix, so I clean Installed no migration and all is well. When I checked my Network Assistance, It had all the Green lights on and reported a working connection.
Before I did all that I tried reinstalling 10.5.1 update on the hope that would replace the 'damage'. Sheesh All I needed was to fire up Cocktail? OMG Definite bug somewhere here...

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Airport connected but safari says its not

i just reloaded my g5 with original software that it came with. the airport signal is full. but safari still says you are not connected to the internet. and all other computers in my house work fine. what do i do?

Do other Internet apps work, such as email? Does a Mozilla browser work, such as FireFox or Camino?

AirPort says 'connected' but Safari says 'not connected to the internet'

I'm stumped.
I just replaced a failed HD. Installed OS from original disk. Airport shows strong signal and says "connected" but when trying to open Safari or check for software updates I receive a 'you're not connected to the internet' message.
Remember I had upgraded to Snow Leopard, so just installed that from disk as well. Same situation with the attempts to wirelessly connect.
Note - all other computers, smart phones, etc in the house can still connect wirelessly. When I connect the MacBook via the ethernet cable, it's fine. Problem is only with wireless connection.
Service is Verizon Fios. Have tried repeatedly restarting the router.
Any other suggestions?

John,
Yes, I've been running Software Update frequently over the last 24 hours (needed to update all the software on that new HD) said there were no updates at last check. However, followed link you provided above and installed the Combo update.
Was hopeful on initial restart after that install, as I rec'd a message to the effect of: "none of your preferred networks are connected". Selected my home network (which was listed and with strong signal), entered password and same result - not connected to the internet.
Took your advice above and returned to "Using DHCP" setting. Inital response was "no ip address" and then after short time, "self assigned ip address" "will not be able to connect to the internet". Tried "renew DHCP lease" and continually receive same result. All very frustrating.
My next step will be to try and connect wirelessly on a friend or family member's network (my local Apple store is a bit far away. Easier for me to visit the ones near my office during the work week).
If I am able to connect on another's network, does that indicate it's an issue with my router?
If I am UNABLE to connect on another's network, does that indicate it's an issue with my laptop?
This is so disappointing - the replacement of the HD was so easy, as was the reinstalling of software. This connection issue is souring what was a relatively painless and quick experience.
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Christine

Mac shows wireless internet connection, but Safari says "computer isn't connected to the Internet"

Situation:
Computer shows internet connection (full bars), but won't actually connect to the internet and load webpages
Attempted Fixes:
Reset Safari
Quit Safari
Restart the computer
Turn off the computer with router unplugged
Turn off Airport
Swear at the computer
Swear at the internet
Unplug the router and turn the Airport off too
Additional Info:
Second computer (mac) connects to the internet so it's not an internet problem.
Last few days the internet has been slowly dying on the computer (Mac OS X) in question. Meaning that the internet asks me for the router password constantly, which was a new development.
I have seen information about reseting Plists and a few other weird things, but I didn't want to do anything drastic based on someone elses issue. I figured it's best to bring my specific issue to the forum before destroying my Mac by randomly deleting Plists.
Any thoughts appreciated.
Dan

Swear at the computer
Swear at the internet
Excellent troubleshooting solutions which usually works.
Which os version are you using?
First contact your ISP. You need to confirm that the issue is not on their end.
Change your router channel. Sometimes this is all you will have to do.
Power cycling the router. Read the router's user manual or contact their tech support for instructions.
System Preferences/Internet & Network/Network
Unlock the padlock
Locations: Automatic
Highlight Airport
Click the Assist Me button
In the popup window click the Diagnostic button.
System Preferences/Network- Unlock padlock. Highlight Airport. Network Name-select your name. Click on the Advanced button. Airport/Preferred Networks-delete all that is not your network.
Place a check mark next to "Remember networks this computer has joined." Click the OK button and lock the padlock. Restart your computer.
http://support.apple.com/kb/TS1920 Mac OS: How to release and renew a DHCP lease
No internet connection (wireless)
Check to see if an extra entry is present in the DNS Tab for your wireless connection (System Preferences/Network/Airport/Advanced/DNS).
Delete all extra entries that you find.
Place a check mark next to "Remember networks this computer has joined."
Other resources to check into:
Troubleshooting Wi-Fi issues in OS X Lion and Mac OS X v10.6
Configuring 802.1X in Mac OS X Lion and Later
Non-responsive DNS server or invalid DNS configuration can cause long delay before webpages load
Netspot
How to diagnose and resolve Wi-Fi slow-downs
Pv6 troubleshooting
Mac OS X 10.6 Help: Solving problems with connecting to the Internet
What Affects Wireless Internet?
Solutions for connecting to the Internet, setting up a small network, and troubleshooting
If using one of Apple's Airport routers, read its user manual or post in its forum area. If using a 3rd party router, read its user manual, contact their tech support department/website or post in its forum area.
Thank you for listing all the troubleshooting you have tried. Makes it so much for the users here in trying to help.

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Hi iGraham!
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Perhaps you can find a specific answer to your problem in this forum
edit-
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Message was edited by: musicequalslife15

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Did you try to log back into your network using Settings > WiFi > Other Networks and re-entering your network name, security settings, and password?
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I moved my computer and had to change from wired ethernet to wifi. I installed a ralink PCI card in my MDD G4 dual 867. It sees the network and connects but Safari doesn't know it is on a network. What am I missing? I also have to connect manually every bootup. How do I setup autostart? My wireless router is a D-link DIR-615. Thanks in advance for your help.
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Hi David,
The Interface that connects to the Internet, needs to be drug to the top of Network>Show:>Network Port Configurations and checked ON.
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Help
WiFi only works close to router, DNS fail, Signal Bars present but Safari says no Internet, I've deleted and re-added through to reset and full reset, I had no problem with 4.3.2 only 4.3.3 both my iPhone4 and my iPad2. I am now beside router - no problem, but go 20 metres and WiFi becomes unstable. Only way to get either to work is disable WiFi either as a Hot Spot or turn it off and use the 3G connection. This worked with 4.3 & 4.3.2 what has gone wrong? I raised it at the Apple Store in Belfast as a problem but was told that there was no problem with Apple but I must have a faulty router - yeah - that's a lot of faulty routers, my home, my office, my holiday home, Starbucks, my friends house, my son's house. I've tried all the 'fixes'. I think it is a plan to force us to buy Apple Routers

Two ways out, I added two more Belkin Access Points in my house in Spain so that I'm not more than 10Mtrs away, (Reinforced Concrete & solar glass 2010)
I bought 3 Apple Airports, 1 x Extreme and 2 x Express (1 as a hard wired AP, 1 as an extender) for my other house (Brick construction 1930's)
Everthing now works perfectly, as I said 'an apple plot', so either blast them with signal or visit your nearest apple store.
Early beta iOS5 (iPad) is also much inproved in Beta 3, I have not had any problem with 'Lion'
Happy hunting!
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AirPort connected but Safari says buffer space exhausted

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