Applications do not find connection after switching (wireless) network

When I move from one network to another, programs do not recognize that the internet connection works again. This happens to Opera and Spotify running in Wine at least.
Anyone know why?
I'm using NetworkManager and nm-applet.

Hi,
sorry if i lose you ... here is the story
node 1 - 10.100.1.201
node 2 - 10.100.1.203
vip - 10.100.1.202
when both server restarted, i can remote to both servers, no problem.
1. RDP to both node 1 and 2 together on their physical IP. Connected successfully.
2. checked the Active node on node 1. Perform fail over from node 1 to 2, node 1 RDP session loss connection immediately. checked on node 2, cluster node active on node 2. no errors.
3. perform node 2 to node 1 fail over. Node 2 RDP session loss connection immediately, node 1 session came back. checked cluster node active on node 1. no errors.
4. in order to have both can continue to rdp, perform restart on node 2 (the node cannot reconnect), after reboot, rdp back to normal.
5. firewall team confirm connection has reach server, server not responding to rdp apparently.

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Airport Card won't connect after changing wireless networks

Hello,
I have a black macbook with an internal airport extreme wireless card. I use the computer at school and at home. Both school and home have functioning wireless networks in which other computers are connected and running with no problems.
When I open my laptop and wake it from sleep after changing from school to home or visa versa the airport card often will not recognize the wireless network. On many occations, even when the network is recognized it will not automatically connect to it (I have it set to do). A message saying "There was an error joining the network" comes up. The only resolution has been to reset the computer (which doesn't always work) or reset the PRAM.
Sometimes after reseting the PRAM the computer doesn't even recognize that I have an airport card installed at all. When this happens I have to reset the PRAM again to resolve it.
As a final note, when the computer doesn't automatically recognize the network and I click on the desktop wireless network icon, I get the "spinning beach ball" for a period of time before the drop down box with the available networks shows up. This seems strange to me because it shouldn't be a RAM issue as I have 2GB of ram installed on this computer.
Any help would be appreciated.
K.
MacBook (Intel) Mac OS X (10.4.8)

Try the following:
Delete Preferred Network(s)
- System Preferences > Network > AirPort > Configure
- In the "By default, join:" pull-down menu, select "Preferred networks"
- Delete the network(s) you regularly use from the list
Delete AirPort Keychain Entries
- Launch the "Keychain Access" application located in Applications/Utilties.
- Click on the "Kind" filter at the top, and look for any "AirPort network password" entries...and delete them.
- Restart, or log out then back in.
Add Preferred Network(s)
- System Preferences > Network > AirPort > Configure
- In the "By default, join:" pull-down menu, select "Preferred networks"
- Add the preferred network(s) using the "+" button.
- Restart or log out then back in.
If you haven't already, you may want to consider creating a network location for each (school & home) with the appropriate network settings required for connectivity at each. For each location, you can set the preferred network.

My Iphone 5 will not automatically connect to my wireless network

Each time I want to connect my home wireless, I need to go into settings and manually connect, rather than automatic connection, which is what happened with my i4s. How can I change this?

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I have iphone 4 and it connect to some wireless networks and some others are not visible while other lphones can find these networks and i tried to restart the phone many times and there is no result, kindly advice

i have iphone 4 and it connect to some wireless networks and some others are not visible while other lphones can find these networks and i tried to restart the phone many times and there is no result, kindly advice

Some updates and clarifications:
1. I already have my 2.4 channel fixed.
2. Wireless network name is 8 alphanumeric characters; no spaces
3. Already using WPA2 security with a 10 alphanumeric key (again, no spaces)
4. I am running Airport Utility 6.0, Mac OS version 10.7.4
I should also say that these problems started happening less than a month ago...prior to that all devices where working normally.
An added update: My two e-readers (nook ST and Kindle 3) are also refusing to connect...perhaps confirming that I have 2.4 GHz issues?

TS1398 my friend had her laptop at my house and wanted to connect to my wireless network. I could not remember my pass word/ Id so she couldn't go online. How do I find out what it is so that others may connect to the internet when at my home. Thanks.

My friend had her laptop at my house and wanted to connect to my wireless network... I couldn't remember my password and didn't know how to retrieve the info from my ipad.. How can I find ut what the PW is to my wireless network? Thanks

Your password is something you created and is configured in your router. Your router may have the facility to reveal a password but you will have to find that out for your router.
Alternatively, you can reset your router back to factory default which will remove your security settings so you can reconfigure them. This is usually a small button you press on the back of the router. Maybe recessed in a small hole so you need to use a toothpick to depress it.

My iMac is not staying connected to my wireless internet. Any suggestions? My provider says it's a computer issue and not their problem.

My iMac is not staying connected to the wireless internet. My provider tells me it's a computer issue and not their problems. Any suggestions?

Please test after taking each of the following steps that you haven't already tried. Stop when the problem is resolved. Back up all data before making any changes.
Step 1
Take the applicable steps in this support article. The Wireless Diagnostics program generates a large file of information about your system, which would be used by Apple Engineering in case of a support incident. Don't post the contents here.
Step 2
Disconnect all USB 3 devices. If you don't know which are USB 3, disconnect all USB devices except keyboard and mouse.
Step 3
If you're not using a wireless keyboard or trackpad, disable Bluetooth by selecting Turn Bluetooth Off from the menu with the Bluetooth icon. If you don't have that menu, open the Bluetooth preference pane in System Preferences and check the box marked Show Bluetooth in menu bar. Test. If you find that Wi-Fi works better with Bluetooth disabled, you should use the 5 GHz Wi-Fi band. Your router may not support it; in that case, you need a new router.
Step 4
Open the Network pane in System Preferences and make a note of your settings in the Wi-Fi service. It may be helpful to take screenshots of the various tabs in the preference pane. If the preference pane is locked, unlock it by clicking the padlock icon and entering your administrator password. Delete Wi-Fi from the service list on the left by selecting it and clicking the minus-sign button at the bottom. Then recreate the service by clicking the plus-sign button and following the prompts.
Step 5
Reset the System Management Controller.
Step 6
Reset the PRAM.
Step 7
Launch the Keychain Access application. Search for and delete all AirPort network password items that refer to the network. Make a note of the password first.
Step 8
Make a "Genius" appointment at an Apple Store, or go to another authorized service center.

I do not want to switch wireless networks

No, Airport Utility, I do not want to switch wireless networks to get my Time Capsule mounting again. This is because if I switch wireless networks, the network will go spinning its little time wheel of nothingness forever and ultimately report that it cannot find the Time Capsule it switched for. On the other hand, if I choose not to switch, it insists that there's nothing to be done with the Time Capsule that's right up top, all by itself, in the Airport wireless devices in the network.
All I want is for my Time Capsule to stop having these fits where it decides it won't join the network that already exists, that is already quite happy, and that it does not need to be the base station for. What is the problem that keeps making it go off into these fits where it won't join the network and won't let any network join it? And why does this keep happening? And what will stop it short of throwing the Time Capsule out the window?

Due to logistics, I attempted to configure via wireless connection. The AirPort utility recognized the AirPort Express only after I pressed the reset button on the Express. It then showed up and I went through the setup dialogs regarding joining an existing network (my Airport Extreme) which it found. I configured the Airport Express using no security, as I was not sure which to choose and I was told there was an issue with my older Mac and working with the newer security protocol. The dialog box indicated that the configuration was complete, "The settings for this Airport Express have been successfully updated.. You can close the window or wait for the Airport Express to restart." I waited for about 5 minutes and it did not restart. I then closed and reopened the AirPort utility and it indicated that it could not locate any wireless devices, neither of the AirPort devices showed up. I tried relaunching the AirPort Utility several time with the same results. I then rebooted my machine and launched the AirPort Utility; it identified my Airport Extreme but not the AirPort Express.
In order to connect via ethernet I would have to remove the AirPort Express from the location from which I intend to use it and connect it adjacent to my computer. What about losing or changing supposed retained settings by unplugging and moving each time? The ethernet connector currently runs between my cable modem and my AirPort extreme. This means getting a 2nd cable or disconnecting my AirPort Extreme to use the existing cable. Do I need to have this connected when trying to configure the AirPort Express? By turnoff the wireless I think you mean using the software to turn it off and not pulling the wireless card in my computer. I am a little confused why the AirPort Utility can only identify the AirPort Express only after I press the reset button on the Express.
Thanks for your help.

Mac mini not keeping connection with Cisco wireless access point

I am trying to get my wife's Mac Mini to keep it's connection with the wireless network at her school. They are using a Cisco access point (not sure of the model) which works fine with my G4 Powerbook and the numerous Macbooks being used there, but for some reason her Mac Mini drops the connection after 4 or 5 minutes, at which point she needs to log right off for it to reconnect (as opposed to just turning the card off and on again). I have already gone through the deletion of the Networkinterfaces.plist file, and recreation of the Airport card profile process, but this only kept the interface active for about 36 hours, then it was back to the same old problem. At this point I am thinking "flakey card"...before I ship it off to Apple, can anyone offer any other possible solutions?

After spending time on the phone with a Apple support technician, he indicated that the Iphone has a compatibility problem with the wep key encryption that the Cisco appliance uses. I find this disturbing being that Cisco is the biggest in network gear. What's UP Apple? We need SP1 for the IPHONE!!!

Does anyone have trouble connecting to their wireless network, after being logged on for some time? Mountain Lion.

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You don't by chance have a "invisible" or "hidden" network enabled on the router?
Because Mac's won't reconnect automatically now to hidden network only upon reboots, it's sort of like advertising the hidden network if you take the computer elsewhere.
Also hidden networks are no deterrent to hackers, they see all.
Also check your time and date, make sure they accurate first, then save that, then make sure it's updated via Apple time servers in your general location (System Preferences > Time and Date) If your being kicked off, your DCHP lease might be expiring too early.
WiFi, Internet problems, possible solutions
WiFi security issues, at home and WiFi hotspots

My hp c4599 printer will not connect to my wireless network

My hp c4599 printer will not connect to my wireless network or show up on my computer during the installation even though it is usb connected. But it managed to create its own network where i can print wirelessly by selecting it sort of like bluetooth… I have installed different softwares from the hp website and looked at so many different forums but i cant find the answer. I have reset the printer and wireless network and god knows whatelse. I can also print fine through the usb cable, it just will not connect to my wireless network. I am going crazy P.S. once upon a time it was connected to my wireless network but i cant remember what happened.
So can someone please help and please dont be too technical

Hi ..
Try these support articles ..
OS X: Connecting a Wi-Fi printer to your Wi-Fi network
Mac Basics: Printing in OS X

MacBook Pro will not connect to Cisco Wireless Network

I have just bought a brand new MacBook Pro, running Leopard (OSX 10.5.1) and I just cannot get it to connect to the Wireless Network at my workplace.
The MBP connects to wireless network and authenticates just fine, but will not obtain an IP address from the DHCP server.
The wireless network consists of 16 Cisco Aironet 1200 Access Points controlled by a Cisco Wireless Network Controller. It does not broadcast its SSID and is WEP 128-bit hex protected.
Changing the network from WEP to WPA is out of the question for me as this is under the control of my customers IT Department and they do not have any problems with their PCs connecting to the network. It appears to be an Apple issue.
For reference, my old Vaio PC, my Nokia N95 and my iPod Touch ALL connect to the same wireless network without any problems whatsoever, first time, every time!
If I boot into Windows XP from my Boot Camp partition, XP can connect wirelessly to the network without any problems, so it is not MacBook hardware related...
It has to be a bug in Mac OSX... doesn't it?!?
Things I have already tried (following suggestions on many forums):
* Switching Airport off/on
* Deleting various network-related Plist files and rebooting
* Manually assigning an IP Address (not really permitted but doesn't work anyway!)
* Disabling all network adaptors except Airport
AP Grapher shows that the MBP is connected to the wireless network, at good strength, and packets are being sent and received, but Internet Access is not possible as no IP Address has been assigned. Instead, my MBP shows a 169.* IP Address (self-assigned). It should be a 10.1.255.* address.
Can anybody please help? Thank you.

i posted this same reply elsewhere because it worked for me for my Buffalo wireless router: try manually setting your IP address instead of relying on DHCP, which sometimes (I don't know why) doesn't work well with Macs. It's a good get around. I am a happy Mac user but nothing is perfect on earth, and when the Mac gives problems, it does give a lot of frustration. Macs are not as easy to troubleshoot as Win because a Mac is built to be user friendly(and it works most of the time), meaning a lot of the background computing stuff is hidden away from users to avoid user accidentally upsetting some settings.
Unfortunately, the highly automated troubleshooting wizards provided by OS X are not perfect so when these software wizards fail to resolve the problem, like my Network Diagnostics, I have to spend more time tinkering around. There's "Terminal" of course but then most of us, especially PC converts to Macs, don't know how to use it.
You should also try updating your MBP, see if there are any new updates being released.

Can't connect to any wireless network after waking from sleep

I have a Netgear wgr814 wireless router and a Powerbook 12" 867mhz. A few months ago, every once in a while when the PB awoke from sleep, it would not be able to connect to any wireless networks. My network showed in the airport menu, but the computer would not connect to it. I believe that the network settings show a self assigned IP of 169.x.x.x. Usually I can see 4 networks in the airport menu, but when it gets in this state only mine shows. Nothing I did on the computer side could make the computer reconnect: renew dhcp, restart, reseat airport card, etc.
After trial and error I found that if I restarted my router, the pb would reconnect and all would be well. The problem occurred about once a week for a while. Since resetting the router fixed the problem I thought that it may be my router so I updated the firmware. After doing so, the problem didn't occur for about a month, but now it happens at least once per day. Resetting the router always fixes the problem. I don't have to do anything to the PB. Once the router comes back up the PB obtains its IP and is happy again.
I'll mention that a Dell Laptop on the same network never has any issues and when the PB loses connection the Dell is always fine.
What could be doing this? My PB is over 3 years old, so is the airport card starting to die? That's the only thing I can think of.

hi there
alright.... I tried a bunch of things and I'm not exctly sure what I did that did the trick, but I got the problem solved. I turned off the WPA encryption on the AP. Then I turned it back on with a different password.
I wonder if the first password I had was too short and that was some how causing confusion.

AirPrint - iPhone 5 can not find printer after router change

AirPrint - iPhone 5 can not find printer after router change; however router is exact replacement of previous one (Zyxel, issued by Imagine wireless). AirPrint was working previously. Printer is on same network. Wireless printing working fine. Have tried rebooting prtiner, phone and router. Any suggestions?

I'd look to HP for support.
Here's an HP Airprint-related trouble-shooting page: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c03314085&tmp_task=solveCate gory&cc=us&dlc=en&jumpid=reg_r1002_usen_c-001_title_r0001&lc=en&product=5271613
Lots more info on the HP support site.

Hp photosmart not connecting to the wireless network

Hi,
I see that there are many questions on this theme that I have read.
i am still confused and have tried many of the solutions as I am unable to connect my printer to a wireless network and therefore not connect it with my mac running the latest os.
I am not the most tech savvy but can folllow instructions easily.
I have printed the network configuration page and it shows the network of the printer is offline. how do i get it to connect?
I have tried the push button method.
the printer is connected to a windows 7 computer that isnt wireless could this be the problem.
please help me i have been at this for 3 hours so far.
thank u

Hello @Ali1234,
Welcome to the HP Support Forums! I understand you are trying to connect your HP Photosmart C4780 to your Mac running the Yosemite 10.10 Operating system. I notice you have the PS C4780 connected to a Windows 7 computer, what you would need to do is connect using the USB to Wireless option. Let's put the Mac on hold for a minute and get on the Windows computer, follow the steps below:
The HP software automatically gathers network settings by temporarily connecting a USB cable from the printer to a computer that is connected to the new network. Follow these steps to reconnect the printer to the network.
Click the Windows icon (), click All Programs, click HP, and then click the folder for your HP printer.
Click USB to Wireless, and then follow the on-screen instructions. Do not connect the printer to the computer with the USB cable until prompted. At the end of the process you are prompted to remove the USB cable.
Restart any other computers on the network that use the wireless printer.
- Source
Once you have the PS C4780 connected to your wireless network, let's go ahead and work with the Mac. Because you are using the Yosemite 10.10 Operating system you must install the printer using the Apple Updates. Please click on the link below, this document explains how to install the print driver on a Mac for a USB or a network connection. The OS X v10.10 Yosemite driver for your printer is available through Apple Software Update (ASU). Additionally, you can perform basic print jobs using AirPrint without installing a driver.
Installing a Mac Printer Driver Using Apple Software Update
Be sure to check out the FAQs at the bottom of the document as some of the features may be limited or there are workarounds.
I hope this helps!
Thanks again,
HevnLgh
I work on behalf of HP
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" to the left of the reply button to say “Thanks” for helping!

MacBook not connecting to public wireless network

So I have had this MacBook for 3 years now, and I have always been able to connect to my wireless network at work, which is password free.
But over the past few days, my MacBook has not been able to connect, have tried everything I know( not a computer whiz,but can survive)
I have gone on network diagnostics, and all the icons on the left panel( airport, airport settings, network settings, ISP, Internet, server) are all red instead of green.
I can still connect to my home network.
Please. Need your help.
Ps: my workplace network administrator has not made an new changes to the network.
Thanx

Hi, I had the same problem : airport was not automatically connecting to the previous network.
After browsing a while on the forums I came to think that the solution was to start all over from the begining. So I deleted the information mac os has from my network (ssid + wep key). After inputing it again the issue was gone.
More precisely I gone to system prefs, then to network prefs, then to airport prefs. Then I chose "by default, connect to prefered network". Then I deleted my prefered network. After that I desactivated airport, reactivated it and inputed my settings.
hope that'll help

Applications do not find connection after switching (wireless) network

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