Airport blocks the internet connection since Maverick is installed

When I try to install my Airport Express my WiFi network gives problems.
The network stops on the Mac form where I try to get the Airport working.
On the other computers in the network it still works.
The Airport seems to get working normally, without error reports.
After a restart of the computer the network connection works fine again, but as soon as I try to play music through the Airport the problems start again.
All attempts to change or adjust the Airport lead to malfunction of the network.
It seems to have to do with the firmware of the Airport Express, but I do not see how I can change it under the circumstances.
Who knows a strategy to change it?

It is possible. While it's not common, sometimes you could have a working router and a working wireless card in a laptop, but they just don't communicate. It sounds like that might be the problem unfortunately.
- Peter

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My Satellite A25-S279 (WinXP) will not connect to the internet wirelessly since UVerse was installed

My Satellite A25-S279 (WinXP) will not connect to the internet wirelessly since UVerse was installed. (Rather, I should say
it 'connects', then immediately disconnects.) When I had regular DSL, there was no problem, but since UVerse installation,
I can connect ONLY with the ethernet cable.
Thinking it was my 'old' computer, I took it to the local computer place---they were able to connect instantly (wirelessly) AND maintain connection. Sooo...I've told this to ATT, & had 2 different techs out here, both of whom were very patient & tried EVERYTHING they could think of, & both of whom failed to fix the problem. They maintain that it is NOT the fault of the modem/router, but is some 'miscommunication' between my laptop & the modem/router.
Is that possible? Is there a setting I need to change on the laptop? If it worked BEFORE UVerse, and if it STILL works at the Computer store, and if it works WITH the cable, why won't it connect wirelessly?
Thank you SO much for any thoughts!

It is possible. While it's not common, sometimes you could have a working router and a working wireless card in a laptop, but they just don't communicate. It sounds like that might be the problem unfortunately.
- Peter

Resetting Airport Extreme disabled my home network. Now when i attempt to get to internet with iPad, or iPhone, I see an Earthlink (ISP) window with message: The internet connection is currently in use by another computer (nun.nn.n.nn)

Resetting Airport Extreme disabled my home network. Now when i attempt to get to internet with iPad, or iPhone, I see an Earthlink (ISP) window with message: The internet connection is currently in use by another computer (nun.nn.n.nn) Enter your DSL Account logon psassword to switch the internet connection to this computer. If I do that, other messages follow. I am usually able to switch connection, but can have only one device on internet at a time. Tried to correct problem using Airport Utility, but failed.

Unfortunately, there is mass confusion about whether a device might be a modem or a modem/router since the terms are mixed up all the time. Even though a device might have only one Ethernet port, it can still be a router.
If this is your "modem".......
http://reviews.cnet.com/routers/netopia-cayman-3341-router/4507-3319_7-30484785. html
It is not a modem.....it is a modem/router. If that is the case, then the AirPort Extreme is not the only router on your network....it is one of two routers, and it should be configured to operate in Bridge Mode.
Does this device appear to be your "modem"?

Airport extreme loses internet connection all the time with imac and macbook pro

I keep losing the internet connection with airport extreme on my imac and macbook pro but NOT with my pc

Ok, so when you say you lose internet connection, is it disconnecting from your wireless network so there are no bars?
And are there usually full bars?

HT3546 Although I am connected to the internet via Airport the internet connection does not stay on and comes with a "time-out" message. The airport connection is still on however. I have recently bought an old Mac Book 1.1.

I have recently bought an old Mac Book after having purchased an iPhone and iPad.
The internet connection (via Airport) keeps timing out while the Airport connection is still on as confirmed by the Mac and shown on the task bar.
Any ideas?
Thank you,
Peter

Only fixed this in the last day or two . . .with this!
https://discussions.apple.com/thread/3588501?start=0&tstart=0

My airport express frequently drops the internet connection. Once I unplug it and re-plug it in, everything is fine until it drops the signal again. This happens on a regular basis. Is there anything I can do ensure it maintains the internet connection?

My airport express frequently drops the internet connection. Once I unplug it, and re-plug it in, my Macbook Pro17,IMac 24, iPad air and my wife's Acer 15 works fine until it drops the signal again. This happens on a regular basis. Is there anything I can do ensure it maintains the internet connection?

It is tricky..
But yes it can be done as long as you use a different IP subnet to what is being used for the internet..
So I need to know what modem router you have?? Does it have wireless as that would make it very easy?
What IP is the computer getting?
Then I can give you the details to setup wireless statically on a different subnet.

TC: The Internet connection is currently in use by another computer...

So, I have a TC connected to a Netopia ADSL modem from Earthlink. Ocassionally, when the computer has left the wireless network, I will come home to find the following page with the Earthlink logo at the top:
“The Internet connection is currently in use by another computer
( 172.16.1.10 ).
Enter your DSL Account logon password to switch the Internet
connection to this computer.”
If I enter the password and click "Obtain Connection", I am taken to another page that says that I can now access the Internet, blah blah blah... and another button that says "Release Connection".
First of all, it does not seem like that should be happnening, but no big deal as it takes 5 seconds out of my day to work around. The bigger problem is that only one computer can be connected to the Internet at a time. If a friend with another laptop comes over and tries to access the Internet at the same time as me, he will get the same Earthlink page popping up. If he enters the password, he will kick off the first computer and on and on and on...
I called Elink support and they, of course, told me it is a TC issue. I called Apple and they, of course, told me it is an ISP issue. I suspect that it has something to do with my TC settings (bridge mode, maybe?), but have no idea what I am doing there.
Anyone have any ideas for me? I have friends coming into town this weekend and we won't be able to share stupid YouTube clips as efficiently with only one computer!

There is nothing you can do.. if you want more than one device connected then you must double NAT. This is common practice with Satellite providers.. I am not sure why they cannot afford to buy a block of public IP.. maybe it is deliberate to prevent people using servers.
Just select ignore in the airport utility.. for the double NAT problem.. this is the equivalent to sticking your head in the ground and therefore your problems don't exist. (your opponents cannot see you if you have a bird brain!!) Of course when the opportunity comes up.. move. Go to fibre or 3g/4g with a reliable ISP who hands out public IP. Until then tighten your belt.. short commons are the order of the day.

My MBP keeps dropping the internet connection

Since yesterday, my MBP (Late 2011) keeps dropping the internet connection from my Airport Express. I'm still connected to the network, it just loses the internet connection on the MBP. I restart the computer, and it works for a few minutes. I turn off router, and it works for a few mimutes...but no matter what I do, after 2-3 minutes, I get the exclamation mark in the wifi indicator saying there is no internet connection.
And this is only happening on that single MBP. All of the other devices in the house, another MBP (mid 2012), an iPad (retina with lightning connector) and 2 iPhones (one 4 and one 5), can all connect. And the router we have is an airport express.
Why is this happeneing only on the one computer, and how can I fix this?
Thanks.

First, changing your DNS settings could not possibly have any effect on this problem.
When you see an exclamation point in the Wi-Fi menu, from the menu bar, select
 ▹ System Preferences... ▹ Network
Click the Assist me button and select Assistant. Follow the prompts. You may get a warning that Wi-Fi is not available, that you're too far from the base station, or that you're using the wrong password.
Assuming that you've ruled out those possibilities, click the lock icon in the lower left corner of the preference pane and authenticate, if necessary. From the Location menu at the top of the window, select Edit Locations. A sheet will drop down. Click the plus-sign button to create a new location. Give it any name you want. In the new location, set up the Wi-Fi service with the same settings you used before. Click Apply and test.

The internet connection is currently in use by another computer

I am trying to replace my old linksys router with Airport Express. I can get it connected and and I can access the internet on my MacBook but when I try to use WiFi on my iPad, I get the message "The Internet connection is currently in use by another computer (172.16.1.11)" from Earthlink, my ISP.
I have a Netopia modem from Earthlink. My MacBookPro is running OSX 10.9.4.
I understand that I need to have the AirPort Express look like the only device attached to the Netopia modern, and then the AirPort Express will handle multiple devices' connections correctly (MacBook Pro, iPad, iPhone). I just can't figure out how to set this up.

There is nothing you can do.. if you want more than one device connected then you must double NAT. This is common practice with Satellite providers.. I am not sure why they cannot afford to buy a block of public IP.. maybe it is deliberate to prevent people using servers.
Just select ignore in the airport utility.. for the double NAT problem.. this is the equivalent to sticking your head in the ground and therefore your problems don't exist. (your opponents cannot see you if you have a bird brain!!) Of course when the opportunity comes up.. move. Go to fibre or 3g/4g with a reliable ISP who hands out public IP. Until then tighten your belt.. short commons are the order of the day.

When i open firefox it runs in background but does not open. if i disable the internet connection immediately it opens. each and every time i do this when i start work. what kind of problem is this

i am using windows xp profession sp3 os
when i open firefox it runs in background but does not open(see through task manager or one message "firefox is already running in background" when i again click the icon.)
if i disable the internet connection, immediately it opens. each and every time i do this when i start work. what kind of problem is this
== This happened ==
Every time Firefox opened
== i every time starts firefox

I had the same problem and it was because of my firewall settings, which I had set to block all activity and forgot to reset it.

**** rid my pooter of the internet connect pop up

hello,
the popup window for "internet connect" haunts this computer.
can you help me get rid of it?
this is a imac g5 power pc. currently running 10.4.7
about to be running 10.4.8
there is no internal modem. only an ethernet port.
there are only the following options in system preferences > network > show >
NETWORK STATUS
BLUETOOTH
BUILT IN FIREWIRE
BUILT IN ETHERNET
AIRPORT
NETWORK PORT CONFIGURATIONS
what is making the internet connect window pop up?
in bluetooth > bluetooth modem : an apple internal 56k is listed, with no option to turn it off.
bluetooth is configured over ppp
(the only bluetooth in use is keyboard and mouse)
in built in ethernet >tcp/ip we are configured over dhcp. no proxies, no pppoe and apple talk IS active
built in firewire > tcp/ip is configured over dhcp
airport> tcp/ip is configured over ppp and airport> pppoe : connect using ppp is checked
thanks for any help in this ghostbusting.
w

I'd start by trashing...
/Users/nnnn/Library/Preferences/com.apple.internetconnect.plist
/Library/Preferences/SystemConfiguration/preferences.plist
/Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist
/Library/Preferences/SystemConfiguration/NetworkInterfaces.plist
/Library/Preferences/com.apple.sharing.firewall.plist
Then Reboot and setup again your Network(s).

Is anyone else losing their internet connection since installing mountain lion?

since installing mountain lion when I come home from work safari won't pick up the internet connection without rebooting. Once rebooting everything works fine until the next day when I incur the same issue. Any thoughts?

Are you on 10.8.2 as ypur profile says? If so, it's worth updating to 10.8.3 which was released last week.
http://support.apple.com/kb/DL1640
Here's a link to some suggestions that helped some users with similar problems in Lion. May still be relevant to MLion. Also check the links within the article:
http://osxdaily.com/2011/11/06/lion-wi-fi-problems-solution-mac/?utm_source=feed burner&utm_medium=feed&utm_campaign=Feed%3A+osxdaily+%28OS+X+Daily%29&utm_conten t=FaceBook
Also when I had wifi problems in the past, creating a new network location resolved it:
http://support.apple.com/kb/HT5289 (under the heading 'Making New Locations'.
I've also seen threads where users with wifi problems have successfully solved them by changing the channel in the router's wifi settings.

Lion mountain newest update :I loos the internet connection, but the network shows connected. And IPhone, IPad stay connected and work. Only the MacBook Pro , which worked perfectly before with Lion unless I updated to Mountain. I have tried everything.

I have a MacBook Pro, Early 2011, 2 GHz Intel Core i7 which I udated some days ago with Lion Mountain 10.8.2. Before it worked just perfect. Now, since the update, I loos the internet connection after a wile, (at the beginning every 20 sec, now up to 4 hours) even that the sign of the WiFi network connection shows to be perfectly connected.
My other divices like IPhone, IPad stay connected and work. The rooter is new and cannot be the problem. I tried nearly everything I found on the bloggs, but nothing helped actually. It must be a softwear problem on Lion Mountain, what can I do?
Thanks for any help

I FINALLY SOLVED THIS ISSUE!!!!
New routers have "mixed" modes for your network; this means that it will automatically choose the best option between wireless-B, wireless-G and wireless-N network modes. I used to experience this issue using the 2.4 GHz. mixed mode wireless network.
Thankfully, my router can create 2 networks: a 2.4 GHz. network and a 5 GHz. network.
When I randomly changed this value to "use only wireless-B and wireless-G" trying to fix an issue with a wi-fi expander, the iMac wi-fi issue dissapeared! I tried it with wireless-N only, but it didn't work.
So, finally, I have a 2.4 GHz network with only wireless-B and wireless-G modes which works PERFECT with the iMac, and a 5 GHz. network with a mixed* wireless mode for everything else mode.
*PD: by "mixed" mode it means that the router will automatically choose between B, G and N network modes as it fits better.

My computer loses the internet connection

hello,
I have a big problem. When I connect my iPhone, my computer loses the internet connection. Before everything was perfect. I have my iPhone since June 2010.
I need your help please

I may have the same/a similar problem. I got the my WRT54GS v7 router on Wednesday (12/26) but I didn't have a change to install it until Sunday (12/30). I was able to get it set up just fine (PPPoE access through local SBC DSL)... my wife and I got our computers hooked up (wired) to the router, and our Wii was hooked up wirelessly. Everything seemed to be working great... but the router seems to be dropping the connection every few hours. If I power off/power on the router, it finds the connection again... but I don't want to be resetting the router every few hours from now until forever. I'm not 100%, but this may very well be happening every time we connect wirelessly... the first time was when we got the Wii set up, then when a friend connected wirelessly, and then again with the Wii a few more times. I know it is not the internet connection myself... we've had this connection for a few years, and used an older Linksys router that worked just fine (we went to WRT54GS to go wireless). The router is locked down with WPA2-personal encryption, and quite a long random string to get in, so I'm pretty sure it is not outsiders. I tried a firmware upgrade and that didn't help at all either. I'd be interested in seeing a solution to this problem soon please! (I'm not sure I understand the instructions of the one response already on this thread.)

Why won't my airport express allow internet connection on TV blu ray? I have internet connection on iMac

Why won't my Airport Express allow internet connection on my Blu Ray when there is internet connection on my IMac?

I'm guessing you only have the modem/router supplied by your isp and the Airport Express. Is the Airport Express connected to the modem/router with an ethernet cable? If not, plug one end of the cable into an available port on the modem/router and the other end in to the WAN port, indicated with a dashed circle, on the Airport Express.
Have a nice day.

Airport blocks the internet connection since Maverick is installed

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