Lost the ability to connect to Internet via DSL

I am running Boot Camp and on the PC side right now because I cannot connect to the Internet on the Mac side!
When I attempt to connect, I get an error message that led me to investigate the Network Connections setup within System Preferences.
However, when I opened up the Network Connections box, a drop-down window appeared immediately to tell me that "another application changed my network settings." I was given only one box to click, titled "okay." Even, though I wasn't okay with that, what else could I click, so I clicked it. The drop-down box disappeared for only an instant, just to reappear. Again and again. I could not check any settings or adjust a thing because when this box drops down, all other areas of the Network Connections box are rendered inoperable. The only way to get rid of the drop-down box is to Force Quit Network Settings.
So, does anyone have an idea 1) why I am getting the drop-down box?; 2) how to STOP getting it?; and, most importantly, how to diagnose the inability to connect to the Internet on the Mac?

UPDATE!!!
Okay, here is what I have (finally) discovered. In the PPPoE settings, for some reason, an incorrect password was stored. When I changed the password to the correct one, everything works as expected and I instantly am logged on to the Internet!
However, trying to get my correct password to be stored there is not happening! I enter it and then click the lock and accept the change. But, as soon as I do, the password reverts back to the shorter, incorrect one!!!
So, as a temporary fix, I have disabled the SAVE PASSWORD button, which (I think) means I will have to manually enter the password each time I logon. Heck, at this point, I don't care!
Why I cannot seem to get the correct password to stay saved is beyond my comprehension right now.

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I have recently lost the ability to connect my ipad to Apple TV. Any thoughts?

Try the following steps, check whether things are working after each step where appropriate, before trying the next.
Check AirPlay is turned on on the Apple TV (turn it off and on if it already is)
Check that both devices are on the same network (Settings > Wifi, on the mobile device and Settings > General > Network, on the Apple TV).
Restart the Apple TV (Settings > General > Restart).
Restart the Apple TV by removing ALL the cables for 30 seconds.
Restart your router. (Also try removing it’s power cord for at least 30 seconds)
Restart your mobile device.

Lost the ability to connect to both WiFi and Bluetooth on my iPhone 4S. Any suggestions on how to fix this?

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Have you followed http://support.apple.com/kb/TS1559 ?
Also try settings>general>reset>reset all settings
If you have followed that article and restored your phone and set it up as new and you're still having that issue you may call and explain you followed the article and are still having the problem. Most likely they will either set up a replacement for you. If they ask you to set up the one time phone support agreement, and they assist you with a restore again, they won't bill you if they end up having to repair it.

I have a Mac connected to Internet via DSL modem. Just bought iPad (today). What hardware do I need to set up wireless LAN so iPad can be used anywhere in house? Will Linksys work with Apple?

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Bob Timmons wrote:
Thanks for the info. You are correct. I was speaking in general terms here based on my experience with the two devices in day to day use, and not in terms of exact specifications.
A better choice would have been to say that the "coverage" is about the same with the edge going to the Extreme....due to the newer mutliple antenna design.
We sure could use more help on the forums. Hope that you will become a regular.
Hi Bob
RF is a minefield, but one that I have worked in for ages, the most critical factor in my experience is location, location, location!
Better routers have more intelligently designed antenna systems, output power as I said is the same, radiation pattern (coverage) is dependent on antennas and physical location more than all other factors.

Lost all ability to connect to internet - Please Help!!

This evening, opened my MBP 2010 and found that my networks will not connect to internet. It says I'm connected to wifi but nothing will load, no apps that require network connection, safari, nothing. Tried ethernet cable which says connected with DHCP when I'm looking at network prefs, but no connection of any kind. I have a Verizon Fios router with Time Capsule (most recent version from Jan 2012) creating a separate network and a AEBS and Airport Express extending that network throughout the house. No problems of any significance (that couldn't be solved with turning router on and off) in the past. Of note, my wife's Macbook Air (which I'm typing this email on) is having NO problems connecting to either the Verizon network or the Airport network. On my MBP, I get neither. I have tried deleting the networks from Network Prefs and adding back but they just will not connect. Is there a way to completely reset my network prefs and start over? Do I need to do that? How can I have one Macbook that connects to everything and another that can't connect to anything. Both are running 10.7.4 and have similar software installed. I tried booting in SAFE MODE and get the same results. I even get the exclamation mark inside the wifi symbol on my menu bar for both of them. WHAT THE HECK is going on??!!? PLEASE HELP!!!

OK, I understand that you can connect to the Verizon router using an Ethernet connection and wireless does not work.
I also understand that you have deleted all of the network listings in System Preferences > Network > WiFi > Advanced.
Please check again to make sure that all of the listings are cleared out. Be sure to click OK and then Apply when you do this.
Next, open Macintosh HD > Applications > Utilities > KeyChain Access
Look for any listing with the name of the Verizon wireless network. Click on that listing to highlight it, then click the Delete key on your Mac.
Then do the same for any of the wireless networks that are provided by the Apple devices.
Close KeyChain Access and restart your Mac.
See if you can log on to the Verizon wireless network now. You should be asked for the password to connect, if you successfully deleted the old networks and the listings for the password in KeyChain Access.

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UGgh i have iphone 4s and its the same problem, been looking for a solution all day but nothing worked. Sorry i cant help but i think a solutionwill come up soon because it is it keeps popping up more frequently. There is one thing if you can find reset network settings in the settings that might work but it didnt fr me

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Can't connect to internet via DSL

Hi,
I have recently signed up to a new ISP with a DSL broadband connection. The ISP supplied me with a DSL modem which i connect to my iMac G5 via an ethernet cable.
My ISP advised me that I need to connect using DHCP. When I try to connect in the Network settings in System Preferences it picks up a self assigned IP address (169.XXX...)
I contacted my ISP and they said that the problem is on my end as they were able to ping various addresses from my modem.
I ran Network Diagnostics and got to the stage where it asked me to restart my external modem. I did this but it could not detect the modem. My ISP has advised me that my DSL modem is compatible with Macs.
Please can somebody help me to overcome this problem.
Thanks,
Dan
iMac G5 PowerPC Mac OS X (10.4.4)
iMac G5 PowerPC Mac OS X (10.4.4)

Open Network preferences, select the Ethernet port and click on the Configure button. Click on the TCP/IP tab in the window and set the Configure IPv4 drop down menu for DHCP. Click the Apply button.
Now shut down the modem, router (if you use one,) and the computer. As a brody has suggested wait at least one minute. Then in sequence, first, turn on the modem and wait until the status lights indicate communication with the ISP; second, turn on the router and wait until the status light indicates communication with the modem; lastly, turn on the computer. Open Network preferences again, go to the TCP/IP window per above instructions and verify you have a valid IP address (should not be 169.xxx.xxx.xxx.)

My macbook pro is connected to internet via my time capsule but my iPad and iPhone won't. it shows wifi connection to the time capsule but when i go on to the internet on the iPad or iPhone, it comes up with network error. can anyone help?

my macbook pro is connected to internet via my time capsule but my iPad and iPhone won't. it shows wifi connection to the time capsule but when i go on to the internet on the iPad or iPhone, it comes up with network error. can anyone help?

This can be caused by a number of issues.
Was everything working and then suddenly stopped??
Or is this a new clean setup and has never worked.
Do you have a cable modem which is not a router and the TC setup in bridge? That will cause it. The TC must be in router mode, ie dhcp and nat.
Check the IP the MBP gets including dns and gateway..
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Unable to connect to internet via the proxy - Proxy set up OEM 12c

Windows server 2008 64 bit
OEM 12.1
I have to get agent software for Windows server 2003, and as far as I know the only way is through self update in OEM, is this the only way?
But when I input my Oracle support credentials I get an error :
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test successful :
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Unable to complete network operation against My Oracle Support. Please check network connectivity to Oracle Support Site.
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2012-07-22 18:28:50,753 [EMUI_18_28_49_/console/admin/rep/proxy/server] ERROR core.patch logp.251 - [EM-01942] Unable to connect to internet via the proxy. Http Proxy - company:80. Destination URL - https://server:proxy/emd/main/. Protocol - https. Error Message - Cannot establish proxy connection: 502 Proxy Error ( The specified Secure Sockets Layer (SSL) port is not allowed. Forefront TMG is not configured to allow SSL requests from this port. Most Web browsers use port 443 for SSL requests. ).
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Please check the following section in
http://docs.oracle.com/cd/E24628_01/install.121/e24089/firewalls.htm#EMADV626
Enabling Oracle Management Service to Access My Oracle Support
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aru-akam.oracle.com
ccr.oracle.com
login.oracle.com
support.oracle.com
updates.oracle.com
About the dontProxyfor Property
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You have installed several additional Management Agents on hosts that are outside the firewall. These hosts are installed in the .example.uk domain.
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http://support.oracle.com
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proxyHost=proxy42.example.com
proxyHost=80
dontProxyFor=.example.com, .example.us.com
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My iMac does not connect to internet via wireless after I log in. I have to open network preferences and run the assistant everytime to make it work. Its a new system, updated to Mountain Lion,.

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Hi, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
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The interface that connects to the Internet should be dragged to the top of the list.
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For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.
Also, turn off IPv6:
System Preferences » Network » AirPort » TCP/IP tab » Configure IPv6
Or whatever Interface you use.

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http://support.apple.com/kb/ts3899
Tap Safari and attempt to load a webpage (try any webpage). If you can load a webpage, then your device has Internet access. If you are unable to load a webpage, follow these troubleshooting steps.Try to use an alternate Internet connection if available:
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GOT MINE FIXED -
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They suspended my iPhone service immediately (as I would expect them to) and THAT is why I couldn't get on.
Called Verizon wireless - they restored me in 30 seconds - EVERYTHING WORKS AGAIN.
They said "we've been doing this ALL MORNING."
Hope this works for others, too!
You blow bright orange chunks, Microsoft, er, I mean, Apple.

Lost the ability to connect to Internet via DSL

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