Q: MacBook Air with iOS 10.9.1 not connecting to wifi after waking up from sleep

Sorry I can't help, but I have this same problem on my iMac.  I have an airport router, and have osx 10.9.1 installed.  This is a new computer I bought around Christmas, and never had this issue with my previous iMac.  Phones, tablets, thermostats, video gaming systems, etc. all work with this router without issue.  It's only my computer.  It won't reconnect after sleep unless I turn wifi off and then back on.  I called applecare and they were of no help.

Hoping someone can troubleshoot...

Test after taking each of the following steps that you haven't already tried. Back up all data before making any changes.

1. Make sure the network is on the preferred list by following these instructions. It's important to read the article carefully, as it's the starting point for any further efforts to solve the problem. If you skip any of the steps, the problem may not be solved. Make sure the box marked

Remember networks this computer has joined

is checked.

2. Follow the instructions in this support article under the heading "Symptom: The network connection drops unexpectedly."

3. Make a note of all your settings for Wi-Fi in the Network preference pane, then delete the connection from the connection list and recreate it with the same settings. You do this by clicking the plus-sign icon below the connection list, and selecting Wi-Fi as the interface in the sheet that opens. Select Join other network from the Network Name menu, then select your network. Enter the password when prompted and save it in the keychain.

4. From the Location menu at the top of the Network preference pane, 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.

5. 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.

6. Repair permissions on the startup volume.

7. Turn off Bluetooth and test.

8. Reset the System Management Controller.

9. Reset the PRAM.

10. Reinstall OS X.

Linc Davis wrote:

 

Test after taking each of the following steps that you haven't already tried. Back up all data before making any changes.

1. Make sure the network is on the preferred list by following these instructions. It's important to read the article carefully, as it's the starting point for any further efforts to solve the problem. If you skip any of the steps, the problem may not be solved. Make sure the box marked

Remember networks this computer has joined

is checked.

2. Follow the instructions in this support article under the heading "Symptom: The network connection drops unexpectedly."

3. Make a note of all your settings for Wi-Fi in the Network preference pane, then delete the connection from the connection list and recreate it with the same settings. You do this by clicking the plus-sign icon below the connection list, and selecting Wi-Fi as the interface in the sheet that opens. Select Join other network from the Network Name menu, then select your network. Enter the password when prompted and save it in the keychain.

4. From the Location menu at the top of the Network preference pane, 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.

5. 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.

6. Repair permissions on the startup volume.

7. Turn off Bluetooth and test.

8. Reset the System Management Controller.

9. Reset the PRAM.

10. Reinstall OS X.

Thanks a LOT! Deleting network A and recreating it did the trick for me,

William Rivas wrote:

 

Linc Davis wrote:

 

Test after taking each of the following steps that you haven't already tried. Back up all data before making any changes.

1. Make sure the network is on the preferred list by following these instructions. It's important to read the article carefully, as it's the starting point for any further efforts to solve the problem. If you skip any of the steps, the problem may not be solved. Make sure the box marked

Remember networks this computer has joined

is checked.

2. Follow the instructions in this support article under the heading "Symptom: The network connection drops unexpectedly."

3. Make a note of all your settings for Wi-Fi in the Network preference pane, then delete the connection from the connection list and recreate it with the same settings. You do this by clicking the plus-sign icon below the connection list, and selecting Wi-Fi as the interface in the sheet that opens. Select Join other network from the Network Name menu, then select your network. Enter the password when prompted and save it in the keychain.

4. From the Location menu at the top of the Network preference pane, 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.

5. 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.

6. Repair permissions on the startup volume.

7. Turn off Bluetooth and test.

8. Reset the System Management Controller.

9. Reset the PRAM.

10. Reinstall OS X.

Thanks a LOT! Deleting network A and recreating it did the trick for me.

 

Nevermind, dumpped again. Does anyone know if 10.9.2 corrected the issue. I have not updated as I have heard of it being a buggy install.

 

Thanks!

 

William Rivas wrote:

 

William Rivas wrote:

 

Linc Davis wrote:

 

Test after taking each of the following steps that you haven't already tried. Back up all data before making any changes.

1. Make sure the network is on the preferred list by following these instructions. It's important to read the article carefully, as it's the starting point for any further efforts to solve the problem. If you skip any of the steps, the problem may not be solved. Make sure the box marked

Remember networks this computer has joined

is checked.

2. Follow the instructions in this support article under the heading "Symptom: The network connection drops unexpectedly."

3. Make a note of all your settings for Wi-Fi in the Network preference pane, then delete the connection from the connection list and recreate it with the same settings. You do this by clicking the plus-sign icon below the connection list, and selecting Wi-Fi as the interface in the sheet that opens. Select Join other network from the Network Name menu, then select your network. Enter the password when prompted and save it in the keychain.

4. From the Location menu at the top of the Network preference pane, 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.

5. 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.

6. Repair permissions on the startup volume.

7. Turn off Bluetooth and test.

8. Reset the System Management Controller.

9. Reset the PRAM.

10. Reinstall OS X.

Updating to 10.9.2 did the trick.

 

Thanks!

 

William Rivas wrote:

 

William Rivas wrote:

 

William Rivas wrote:

 

Linc Davis wrote:

 

Test after taking each of the following steps that you haven't already tried. Back up all data before making any changes.

1. Make sure the network is on the preferred list by following these instructions. It's important to read the article carefully, as it's the starting point for any further efforts to solve the problem. If you skip any of the steps, the problem may not be solved. Make sure the box marked

Remember networks this computer has joined

is checked.

2. Follow the instructions in this support article under the heading "Symptom: The network connection drops unexpectedly."

3. Make a note of all your settings for Wi-Fi in the Network preference pane, then delete the connection from the connection list and recreate it with the same settings. You do this by clicking the plus-sign icon below the connection list, and selecting Wi-Fi as the interface in the sheet that opens. Select Join other network from the Network Name menu, then select your network. Enter the password when prompted and save it in the keychain.

4. From the Location menu at the top of the Network preference pane, 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.

5. 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.

6. Repair permissions on the startup volume.

7. Turn off Bluetooth and test.

8. Reset the System Management Controller.

9. Reset the PRAM.

10. Reinstall OS X.

Updating to 10.9.2 did the trick. So I thought. Does anyone have a solution?

 

Thanks!

 

There are a wide variety of "fixes" or workarounds especially if this is a home, not public network.

Checking that the router has the latest firmware release

Checking that g/n is enabled on the router

Checking that wide or 40MHz is enabled and 5GHz radio band is selected at the router

Checking that the standard channel is not the same as the neighbors or other nearby networks.

Tuning off Bluetooth, ensuring that other 2.5GHz devices and Bluetooth devices are not causing network noise/interference.

Have you done any of the above?

themachead wrote:

 

There are a wide variety of "fixes" or workarounds especially if this is a home, not public network.

Checking that the router has the latest firmware release

Checking that g/n is enabled on the router

Checking that wide or 40MHz is enabled and 5GHz radio band is selected at the router

Checking that the standard channel is not the same as the neighbors or other nearby networks.

 

Tuning off Bluetooth, ensuring that other 2.5GHz devices and Bluetooth devices are not causing network noise/interference.

 

Have you done any of the above?

Thank you for your suggestions. I finally found the fix with MY wake for network access issue. I went into Sharing in System Preferences. Un Shared Drive (Folder as shown) on the MacBook Air that was not waking for network access. I then added it as a shared drive (folder). Then checked the boxes shown in screen shot:

This was already done prior to redoing it. Weird but I can now wake from sleep for network access  MBAir from my iMac. Thank you again.