Airport network connected on full bars but "no internet connection" and missing lock icon!

this is really frustrating!
I'm using wireless in my house. when i click on my network it connects and it shows perfect connection which is full bars.
on Network Preferences it says that i'm connected to the Airport but when i go to Safari it shows "You are not connected to the Internet" so i click on Network Diagnostic where the 3 network status on top has the green indicator but the ISP, Internet and Server show red and failed.
I don't think there's anything wrong with my internet connection since I'm able to go online using my sister's computer and also on my iPhone.
There's also usually a Lock icon/symbol next to my network's name but when i'm connected to my network the Lock icon seems to be missing but it still shows full bars connection. I really don't get how it's possible to be connected to a network, but no internet connection, while i can access the internet on other devices.
Please help me out here. I've tried ways like going to library>preferences then put the system configuration into Trash, and going to Network Preferences and removing the Airport service and creating a new one.
and one more thing. all mentioned above are when i clicked on Advanced on network preferences then i clicked on TCP/IP and changed the Configure IPv4 from Using DHCP to Manually. When i'm back to using DHCP there's an exclamation point over the airport icon on the top bar and it says no internet connection.

Got my own question answered by a colleague.
He had me create another "Location" in the network pane of System Preferences, then choose it and click Apply. I created a new location which I called 'Airport', chose it and clicked Apply and sure enough, an IP address showed up and all is well.
Justin said it's a network bug in Leopard.

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I have an old PowerPC and a Macbook Pro running 10.6.7 sitting side by side. Both are using AirPort to connect to the internet wirelessly to the same router, but the old Mac connects with full bars, but the MBP struggles with only 2. Pls help, thanks!

I have an old PowerPC running 10.4.11 and a Macbook Pro running 10.6.7 sitting side by side. Both are using AirPort to connect to the internet wirelessly to the same wireless router. The old Mac connects with full bars but the MBP struggles with only 2 bars. Pls help, thanks!

BDAqua,
Thanks for the response.
Apple has used the term "Digital Audio" to identify this machine. System Profiler has the following information:
Machine Name:          Power Mac G4
Machine Model:          PowerMac3,5
CPU Type:          PowerPC G4 (2.1)
Number Of CPUs:          1
CPU Speed:          800 MHz
L2 Cache (per CPU):          256 KB
Memory:          768 MB
Bus Speed:          133 MHz
Boot ROM Version:          4.3.3f2
Serial Number:          XBxxxxxMK9
Sales Order Number:
Yes, I could connect them by ethernet if all I wanted to do was transfer files, but I would like to network them so I could use wireless internet. The machines are not always so close together, I did that to simplify the testing. With the very slow transfer speeds I am reluctant to move ahead with the internet step.
<Edited By Host>

Installed Snow Leopard OK, but when uploading the Mac os x Update Combined, it would not save. It said it could not connect to update server, but my internet connection is working?

Installed Snow Leopard OK, but when uploading the Mac OS X Update Combined, it would not save. It said it could not connect to update server, but my internet connection is working. Any suggestions on fixing?

Run software up date, write down the update name and version. Go to the Apple site and do a search for the updates one at a time and download them one at a time. Use an ethernet connection, sometimes software update "crushes large updates. I have experienced this before. Hope it helps. ATB

Airport is connected w/4 bars, but no real connection or IP address

This one has me scratching my head.
MBP/2.4 GHz/10.5.4 connecting to a Linksys WRT54G wireless router with WPA security.
The MBP sees the Network and shows a strong signal, 4 bars, but there is no internet connection.
In the Network System Preference, Airport shows No connection and no IP address.
Other computers connect perfectly well.
Aside from scratching my head, I've restarted the computer, the modem and the router.
I've discarded the System Preference .plist (couldn't find a Network plist)
I've repaired permissions and run Disk Warrior to rebuild the directory.
I had a thought that it might be the VM Ware Fusion, so I disconnected it from the network and then shut down Windows and restarted: No change.
Who's got a brilliant insight this morning?

Got my own question answered by a colleague.
He had me create another "Location" in the network pane of System Preferences, then choose it and click Apply. I created a new location which I called 'Airport', chose it and clicked Apply and sure enough, an IP address showed up and all is well.
Justin said it's a network bug in Leopard.

Wifi bars, but no Internet connection.

After two weeks of using the new Ipod Touch 4g, the wifi suddenly stopped connecting to the internet. All other computers and my xbox has working internet except my Ipod Touch. It says that the Ipod is connected to my network and shows bars, but when I try to access Youtube, Safari, or any other application that requires an internet connection, it says that there is no connection to the internet. Both Wifi and Bluetooth addresses appear in the About section under General in Settings also.
I've tried the first three suggestions in
http://support.apple.com/kb/TS1559
, which includes reseting Networks, data, and the whole Ipod itself.
Any suggestions on what should I do?

Try this article:
http://support.apple.com/kb/TS1398

Trying for wireless network with D-Link modem, but no Internet connection

I am trying to figure out a way to use my iBook elsewhere in my house, without being physically connected to my modem. I have a SpeedStream 5100 modem, use DSl, and just got a D-Link DI-524 router. My problem is that I cannot access the configuration page for the router. When I type in 192.168.0.1, as instructed, my we b browser "times out." I also cannot "ping" this address.
I have tried multiple web browsers, have tried resetting the modem and the router, and have tried to contact D-Link and SBC for help, to no avail.
My iBook recognizes a wireless network when all of the machines are connected, but I can't get online on either machine.
As instructed by D-Link, I have changed the ISP address in my network preferences, but something doesn't seem to be working.
What am I doing wrong?
By the way, I have downloaded no firmware or drivers for the D-Link; I just hooked it up.
Thanks in advance!

Yes, the cable from the modem is plugged into the WAN port; the cable from the iMac is plugged into the WLAN port (I've tried all four ports). (By the way, don't feel bad about asking; I am not the most tech-savvy.)
The IP address I have been trying to connect with the router/modem setup is 192.168.0.1. There is no way for me to input any numbers in the "router" box; it is blank.
Normally, when I connect using DSL, my IP address is different, and there is a router number there, too.
I have tried contacting D-Link's customer support via e-mail. After exchanging about three e-mails with them, they have declared me beyond their help. Ugh! I'm sure it's something simple that I'm not doing, but I just don't know what!

LinkSys Wireless Card connects to "Access Point" but no internet connection

I have 2 LinkSys wireless cards. one is 802.11g, the other b. The signal for the Airport Extreme 802.11n Wi-Fi Wireless Base Station is very strong, but when I try to connect, it says "You are connected to the access point, but the Internet cannot be found". No internet access, and I can't ping anything (Ping request could not find host...). And of course the printer hooked to the AirPort is also not recognized. My iMac and Macbook both have no problems connecting to the network. There is no problem with ethernet connection to the Airport. Is it possible to have a compatibility problem between the Linksys and Airport hardware? I thought as long as they were were compatible 802.11, they would work together. The cards had no problem with my old DLink router or other hotspots in the city. Is there a set-up I missed for setting up the PC-based cards with the AirPort?

Is your wireless network secured?
The box said windows xp or better... So I installed Linux!

I have personal hotspot in my iPhone 4S I can connect to my phone but no Internet connection

I can connect to my iPhone hot spot with no problems but I have no Internet
Please help, cellular data is on, also my computer gets IP address subnet and gateway,

I'd first be sure the Hot Spot service is provisioned correctly with your cell provider. I'd then follow the restart/reset/restore troubleshooting path.
http://support.apple.com/kb/HT1430
http://support.apple.com/kb/HT1414

Airport Express signal fine but no internet connection

We have been using an Airport Express for wireless Internet access and recently are unable to connect to the Internet. We use a Comcast cable modem, through a Linksys router, to the Airport Express. We can connect by network cable to the router and access the Internet, but are unable to connect wirelessly. We are getting a signal from the Airport Express (the light is green), but no Internet connectivity. We have restarted and done a hard reset (holding the reset button while plugging the Airport Express in) of the Airport Express, but it did not seem to help. The hard reset did not result in resetting the settings, so perhaps there is another way to reset it or perhaps there is another problem.
Has anyone had similar problems?

I tried power cycling the cable modem, downloading new firmware (why didn't Software Update tell me about this?), deleting the DNS servers, hard reset of AirPort Express, factory reset of AirPort Express, fiddling with AirPort Admin Utility, fiddling with AirPort Setup, all of the above in different order and different combinations, and it still would not work.
Power cycling the cable modem was one of the first things I did, and that resulted in getting Internet connection through the cable modem onto the ethernet cable; just no Internet through AirPort. Finally, after a factory reset of the AirPort Express did not help, I decided to power cycle the cable modem again, even though I had already just confirmed again that I was getting the Internet through the ethernet cable. Once the cable modem finished the power cycle, it finally worked! I was back on the Internet via AirPort!
I'm not exactly sure which solution fixed it for me, but I suspect that it didn't work at first because I did not power cycle the cable modem afterwards. In other words, if after changing AirPort settings you still are not connected to the Internet, try power cycling the cable modem. Do this every time for each change you make to the AirPort settings.
The other thing I learned is that unplugging the cable modem from the wall power outlet or turning off the power strip will NOT power cycle the cable modem properly. Instead, you must remove the power cord from the cable modem. I tried all three of these methods and for whatever reason, the only time it worked was by removing the power cord.

AIRPORT: have bars but can't connect to internet

In the last week and a half, my MBP's Airport has been really weird lately.
I haven't updated anything aside from iTunes and I think Iphoto.
My airport would say it's connected and that it has full bars, but I can't connect to the internet
This doesn't just happen to my home connection but to my school's connection too.
I've tried creating new Airport by what people told me to do (+/-) etc... and this worked for a while, but then it stopped working OR it would work then drop my connection a couple hours later.
My connection is really bipolar at the moment. It's like one moment, I log on, and I have internet... then the next moment, I don't.
Anyone else having the same problem? Help.

In System Preferences > Network > Airport/Wireless ...
... make certain Airport/Wireless is at the Top of the list. If not, there is a command accessible with the gear Icon under the box to re-order the list and put it there.
To get it to make up its mind more quickly, ask to join new Networks [√] and on the ( Advanced | Airport/Wireless ) Pane, make sure your Home Network is listed and at the top of the list.
You are not using IPv6, ( Advanced | TCP/IP ) so turn it off.
If it continues to give you trouble, use the ( Assist Me ) button. If "diagnostics" does not give any satisfaction, use "Setup" to set it up again from scratch by answering the questions.

How do i restore my wifi setting back to the factory settings? I have changed it somehow :/ and now my wifi will not connect. My Airport is on and showing full strength but will not connect.

How do i restore my wifi setting back to the factory settings? I have changed it somehow :/ and now my wifi will not connect. My Airport is on and showing full strength but will not connect.

Ok, if other devices are connecting but just not your MacBook then let's start troubleshooting the MacBook to possibly find out why.
Please try each of the following, in order, until hopefully resolved:
Note the following are excerpts from an OS X Daily article.
* Turn Airport on & off – You can do this via the Airport menu bar or from the Network Preferences. This is the first thing you should try when troubleshooting Mac wireless problems.
* Make sure Wireless/Airport card software & firmware is up to date – This is usually done just by going to the Software Update menu, if there are any updates available for your Mac or Airport, install them.
* Delete and recreate connection – Try deleting and recreating/reestablishing the wireless connection, sometimes a setting can be corrupted and this may fix it.
* Create a new Network Location – Similar to the above suggestion, try creating a new and different wireless network location to see if it resolves the connection problems.
* Change DHCP auto settings to manual – sometimes there is a problem with the DHCP server, and if you manually set an IP address on the network you can be fine. Remember to set the IP to a high number so it wouldn’t interfere with other DHCP machines. As long as you have the subnet mask, router, and DNS settings configured manually as well, this shouldn’t be a problem.
* Flush the DNS cache – Launch the Terminal and enter the following command onto one full line within the Terminal: dscacheutil -flushcache
* Zap the PRAM – Reboot your Mac and hold Command+Option+P+R during restart until you hear another chime, let the Mac boot as usual.
* Delete Wireless Config files – Delete com.apple.internetconfigpriv.plist and com.apple.internetconfig.plist files from ~/Library/Preferences and reboot
* Trash your home directories SystemConfiguration – Remove all files within ~/Library/Preferences/SystemConfiguration/ and then reboot your Mac.
* Reset your Mac’s System Management Controller (SMC) – For MacBook and MacBook Pro’s: Shutdown the MacBook/Pro, remove the battery, disconnect the power, hold the Power Key for 15 seconds. Replace the battery, reconnect power, and zap the PRAM and wait for 2 chimes before letting the keys go. Let boot as usual.

Airport status at 3 bars but can't connect to internet

My 17" Powerbook is the only one of five Macs in the building that isn't able to connect to the internet with our Airport Extreme base station. The airport status icon shows 3 "bars" but will not connect. When we put the Powerbook within 15 - 20 feet of the base station, it works fine, but this is not practical.
If it matters, the other computers are a G4 MDD, an eMac, a 14"iBook and a G4 iMac "flower", all using a mix of older Airport cards and new Extreme cards. I have checked the Interference Robustness setting and it doesn't have any effect.

"When we put the Powerbook within 15 - 20 feet of the base station, it works fine"
So if I have this correct, when the powerbook is close it behaves normally, when it is moved away it still sees 3 bars, but will not connect. but other compouters have no problem.
it sounded like interference at first, but other computers ought to be similar on that point.
Can you see the other computers on the network when you can't get to the internet?
can you see the base station? (airport admin utility)
any other networks in the area?
handheld phones / microwaves nearby etc?
airport card seated properly in the powerbook?
If you restart does the connection return temporarily?
any encryption running? if so, turn it off and see if the connection returns after restart.

G4 (800MHz) connects to airport network via N300 wireless modem but won't bring up a browser page (Safari or Firefox)

G4 (800MHz) connects to airport network via N300 wireless modem but won't bring up a browser page (Safari or Firefox) - so the connection is there, everything says its a goer - I get a clear black signal icon in the menu bar on top, and a clear signal strength in the Internet connect dialogue box - - but when I run either of the browsers, it just says 'not connected to internet' - even for the 'software update'.
the N300 is a Netgear N300 Wirelsess Modem Router (model DGN2200) - ADSL (802.11 b/g/n)

tests to try:
-- have you tried connecting by cable? What happens?
-- Set your dns to 8.8.8.8 and 8.8.4.4 This is the google dns server. generally faster.
Check out your settings.
apple > system preferences > network
Double click on network connection you are using.
Pick the TCP/IP tab.
Verify that you have a DNS Server.
You can use
harddrive > applications > utilities > network utility
to diagnose the situation.
You can ping google.com.
Result:
Ping has started ...
PING google.com (64.233.167.99): 56 data bytes
64 bytes from 64.233.167.99: icmp_seq=0 ttl=244 time=215.362 ms
64 bytes from 64.233.167.99: icmp_seq=1 ttl=244 time=279.597 ms
64 bytes from 64.233.167.99: icmp_seq=2 ttl=244 time=189.747 ms
64 bytes from 64.233.167.99: icmp_seq=3 ttl=244 time=250.657 ms
64 bytes from 64.233.167.99: icmp_seq=4 ttl=244 time=183.232 ms
64 bytes from 64.233.167.99: icmp_seq=5 ttl=244 time=243.753 ms
64 bytes from 64.233.167.99: icmp_seq=6 ttl=244 time=173.108 ms
64 bytes from 64.233.167.99: icmp_seq=7 ttl=244 time=230.239 ms
64 bytes from 64.233.167.99: icmp_seq=8 ttl=244 time=180.639 ms
64 bytes from 64.233.167.99: icmp_seq=9 ttl=244 time=232.177 ms
--- google.com ping statistics ---
10 packets transmitted, 10 packets received, 0% packet loss
round-trip min/avg/max/stddev = 173.108/217.851/279.597/33.615 ms
If that does not work, try pinging 64.233.167.99 Result:
Ping has started ...
PING 64.233.167.99 (64.233.167.99): 56 data bytes
64 bytes from 64.233.167.99: icmp_seq=0 ttl=244 time=189.655 ms
64 bytes from 64.233.167.99: icmp_seq=1 ttl=244 time=213.471 ms
64 bytes from 64.233.167.99: icmp_seq=2 ttl=244 time=257.873 ms
64 bytes from 64.233.167.99: icmp_seq=3 ttl=244 time=172.745 ms
64 bytes from 64.233.167.99: icmp_seq=4 ttl=244 time=226.723 ms
64 bytes from 64.233.167.99: icmp_seq=5 ttl=244 time=171.883 ms
64 bytes from 64.233.167.99: icmp_seq=6 ttl=244 time=260.308 ms
64 bytes from 64.233.167.99: icmp_seq=7 ttl=244 time=172.963 ms
64 bytes from 64.233.167.99: icmp_seq=8 ttl=244 time=198.840 ms
64 bytes from 64.233.167.99: icmp_seq=9 ttl=244 time=181.215 ms
--- 64.233.167.99 ping statistics ---
10 packets transmitted, 10 packets received, 0% packet loss
round-trip min/avg/max/stddev = 171.883/204.568/260.308/32.247 ms
If pinging 17.254.3.183 works but pinging Google.com doesn't. You have a bad DNS Server address.
I use Google.
Google provides free dns lookup. Their numbers are:
8.8.8.8
8.8.4.4

I have full bars but i can't connect to the internet. I've done all the usuall thing like reset the ipad reset my internet security but everytime it says "safari cannot open the page because it is not connected to the internet" Any ideas?y

I have full bars but i can't connect to the internet. I've done all the usuall thing like reset the ipad reset my internet security but everytime it says "safari cannot open the page because it is not connected to the internet" Any ideas?

As with previous posts this is usually a DHCP issue and occurs frequently especially with routers connected to Cable Modems or those Micro-Cell towers.
Unplug all Routers, AirPorts (or other off brand Wi-Fi broadcast units) and any other Wireless broadcast unit that might provide you with a WDS (often other AirPorts feeding off the signal of the AirPort closest to Cable/DSL Modem) and best to totally power down the Unit affected; lastly either hold a reset button on Cable/DSL modem for 30-45 seconds or actually power it down if an option (not suppose to power down Cable Modems that have Telephony for some odd never completely explained to me reason).
Let Cable/DSL Modem re-boot till 'all green lights'. Then power up each device involved in order from closest to farthest waiting each time for completion of initiation. Micro-cell towers can take 10 minutes to completely re-boot and you must wait for across the board green lights in my experience. Even WDS can add a few minutes till all green on mother AirPort unit.
Only NOW may you re-start the offending device and see if it will connect. Works about 99% of the time!

Airport Says It's Connected -- But No Internet Connection...

This is driving me mad...
We're using Airport to connect a 12" PowerBook G4 (10.4.11) to a WirelessLAN (the modem is an Arcor A300 WLAN -- a German make)
We had been having no problems until it one day said "you are not connected to the internet".
I've tried all the restarting the modem rigamarole, and the PB can connect via Ethernet. Opening Internet connect, Airport signal strength is 100%, it states that it's connected to the Arcor modem.
Under System Preferences / Network it states "You are connected to the internet via Airport"
Also, I can see the PowerBook mounted in My Mac Pro's Finder...so it must be connecting wirelessly to the Arcor box --- My Mac Pro is connected to the Arcor Box via Ethernet cable.
Anyone got any ideas, suggestions as to what's going on?
TIA,

I am having a very similar problem with one of the iMacs here at our office on AirPort. We have four machines using an Airport Extreme, but only one has this issue--a full set of connection bars and access to everything else that is shared, but the internet connection keeps dropping every 15-20 minutes and won't reconnect. From the Airport icon we turn off the Airport, then connect again and it works fine for another 15 minutes until it quits again. I finally had to use a cable to hard-connect that computer to our network and now it works fine, so it can't be the computer itself.
What to do? I'm afraid this problem will start with the other machines, as well. Can anyone assist?

Airport network connected on full bars but "no internet connection" and missing lock icon!

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