ADSL2 modem reboot; Mac does not reconnect, PC does

Can anyone help me please?
I have an ADSL2 Netgear modem, which works very well most of the time.
However, it re-checks the noise etc on the line, and resyncs to keep the noise margin above 7 dB. Fine.
Unfortunately, when it does this (effectively, reboots), or when I reboot the modem (off/on), the Mac often does not reconnect properly.
I see DHCP: IP addr (wrong one), submask, but router IP is blank
I can renew my DHCP Lease, but again, no router IP appears.
I cannot access the control panel for the router (192.168.x.x)
BUT --- My PC (Windows XP SP2) always reconnects every time, just fine.
I have to RESTART my Mac to get reconnected.
Why? What can I do? This is a real pain...
Thanks!
William

"Does it reconnect if you Log out & back in? "
Log out/in on the Mac - No, it does not reconnect. I have to restart the Mac.
I've also tried disconnecting & reconnecting the ethernet cabe to the router as well, then DHCP on/off, etc etc etc, but that doesn't work either.
Since the PC ALWAYS reconnects (with no human intervention), I think this is probably Apple brain-damage.

Similar Messages

  • ICloud mail does not reconnect in Mail application on MacBook Pro after disconnecting and reconnecting iPhone or after sleep

    iCloud mail does not reconnect in Mail on my MacBook Pro after sleep or after disconnecting and reconnecting my iPhone. This only happens when I use my iPhone as a 3G-modem and not when I am on Wi-Fi. The only solution seems to be to quit the Mail-application and restart it again. Then Mail reconnects to iCloud.

    Hi horstp,
    Given your description of the issue (works on other Macs), it may be worth trying to set up that account by itself in a new test user on the iMac to see if it can be isolated to a user-specific file. You may find the following article helpful:
    Apple Support: Isolating an issue by using another user account
    http://support.apple.com/kb/TS4053
    Regards,
    - Brenden

  • WIFI does not reconnect after a standby

    Since I installed "OSX Mavericks" on my MACBOOK AIR, the wireless network does not reconnect after a reboot or standby. I need to disable the wireless and reactive for the connection resumes!
    Thanks for your answer...

    http://carnationsoftware.com/LastA2DPDevice_Mac_Wireless_Problem.html
    Trash your Bluetooth preferences, restart your Mac.
    Open Bluetooth Preferences (Apple Menu, System Preferences, Bluetooth)
    Remove any audio devices that are shown in the upper section of that list.
    Pair your Bluetooth Speaker or headset device and then connect and disconnect it.
    Open /Library/Preferences/com.apple.Bluetooth.plist
    If the LastA2DPDevice item is present, then you know you have just paired a A2DP device. You need to trash your Bluetooth preferences and restart your Mac again.
    The problem is caused by an interaction with Bluetooth and specifically Bluetooth devices that use Advanced Audio Distribution Profile (A2DP) which is used to stream bluetooth audio from devices such as Bluetooth headsets and Bluetooth speakers.
    The problem is caused when the Mac goes to sleep and wakes back up. It tries to connect to the A2DP device that was last used by the Mac. If that device is not powered on or is not in bluetooth range, it will keep trying to connect to that device (for an unknown amount of time). While it is looking for that Bluetooth device, the 802.11 wifi is also looking for the last wireless router or access point and fails to find it.
    Why the wifi is unable to reconnect after waking from sleep is not exactly clear because wifi is a different protocol than Bluetooth. One hint is that it only seems to fail with wireless routers that run on the 2.4 Ghz band. That is the same frequency that Bluetooth uses (even though Bluetooth hops through different smaller bands within that frequency.)
    I do not have the problem when at home and connected to my Airport Supreme Wireless AC router which is running on the 5 Ghz band.
    To prove this, here is what I did...
    1. Go to a location where you are having the sleep / wake wireless problem and take your Bluetooth speakers or Bluetooth headphones with you.
    2. Now while at that location, Connect to the wireless network there.
    3. Turn on the power to your Bluetooth device (speakers or headphones).
    4. Turn Bluetooth on and connect to your Bluetooth device.
    5. Put your Mac to sleep for 45 seconds (that is enough time for the Macbook to shut down power to Bluetooth.)
    6. Wake your Mac back up and you will notice that there is no problem reconnecting back to the wireless network.
    7. Now turn OFF the power to your Bluetooth device and put your Mac to sleep for 45 seconds.
    You will see that your MacBook will not connect back to your wifi wireless network after it wakes from sleep.
    That is because it is looking for your Bluetooth device that it cannot find.
    Note that this test is only valid if you are using a Bluetooth device that uses the A2DP protocol. I did my tests with a Bose Soundlink Mini speaker.
    I am connecting to a Netgear N300 Wireless Router (WNR2000)

  • External hard-drive does not reconnect after sleep

    Hi everyone
    I am trying to use my Energy Saver to SLEEP my iMac after 1 hour. It goes to sleep no problem, but on wake-up, my external USB hard drive does not reconnect. There is also an error message that I didn't disconnect the drive properly. I fear this may be one of Mac OS X's "features". Has anyone encountered the same thing?
    On a side note, I also find that my USB keyboard does not always reconnect as well. I use a windows USB mouse that I have connected to wake it from sleep, however my USB keyboard (the small one for Macs), sometimes does not allow me to type unless I unplug it and back in.
    Another point of note is that both the HD and the keyboard are connected to the iMac through a 7 port USB hub.

    r_dizzle wrote:
    Another point of note is that both the HD and the keyboard are connected to the iMac through a 7 port USB hub.
    I think this might be the issue. If the iMac is waking back up, it will likely be waking up this HUB, but the HUB might not be re-initialising the connection between OS X and the external drive or the keyboard.
    After waking the iMac, if you unplug the external drive from the HUB, then plug it back in again, does OS X pick it up again? Have you tried plugging the external drive directly into the iMac and then testing what the result is?
    If you read back on what you've said, you pointed out that you have a USB mouse that you use to wake the iMac from sleep. Is this mouse directly connected to the iMac? If so, it surely can't be a coincidence that a directly connected USB device can wake the iMac from sleep, but any USB devices connected to the iMac via a USB HUB cannot.
    I would suggest you test the drive as it is directly connected to the iMac. I would complete the same test with the keyboard too. I think you'll find it's the USB HUB.
    I hope this helps.

  • Airport Extreme in extender mode does not reconnect after main router reset.

    I have an Airport Extreme 4th Gen (extender). set to extend the signal from an Airport Extreme 5th Gen (main).  Whenever the main router resets (after reconfig, etc) the extender does not reconnect.  I would have to restart the extender before it will connect again to the network.  However, my Airport Express set to extend will automatically reconnect.  Is this a settings issue?  Please advise. 

    Ok, well I am hoping you are not doing a re-config of your 5'th gen all the time? This should only be done very rarely... we're talking like less than once a year for many people.  Unless there's something else going on there, I wouldn't worry about it if you have to power-cycle the 4'th gen once in a few blue moons.

  • OSX 10.9.1 macbook pro 13 retina - wifi does not reconnect automatically when waking up from sleep mode since I have a Bluetooth apple magicmouse

    Hello,
    My config is OSX 10.9.1 new macbook pro 13 retina (2014).
    The wifi does not reconnect automatically when waking up from sleep mode since I have a Bluetooth apple magicmouse.
    It was not the case before I bought the BT mouse.
    Is this problem between Wifi and bluetooth coming from the OS?
    Is there a fix already available or scheduled?
    Thanks

    Hello alexandrefromfrance
    Check the Symptom: The network connection drops unexpectedly section for steps on what to do when your MacBook Pro does not connect after waking from sleep. I have also quoted the section on troubleshooting the issue as well.
    Wi-Fi: How to troubleshoot Wi-Fi connectivity
    http://support.apple.com/kb/HT4628
    Symptom: After restarting or waking from sleep, my computer might not connect to the Internet
    After waking from sleep or starting up, your computer may not show that it is connected to a Wi-Fi network.
    After start or wake, your computer may indicate that it is connected to a network, but does not connect to the Internet.
    Solution
    Use these steps if your computer does not automatically connect to your desired Wi-Fi network.
    Check your TCP/IP settings in the Network pane of the System Preferences. Click the "Renew DHCP lease" button
    Choose System Preferences from the Apple menu.
    Choose Network from the View menu.
    Select Wi-Fi, then click the Advanced button in the lower-left hand corner of the screen.
    Click the TCP/IP tab from the top of the screen.
    Click the "Renew DHCP lease" button.
    Select the Wi-Fi tab and view your Preferred Networks list.
    Select each network and click the minus sign to remove those networks from your Preferred Networks list.
    Click OK and close the Network preferences.
    Remove your stored network passwords using the Keychain Access Utility.
    Open Keychain Access from /Applications/Utilities. Your window will look like this:
    Remove your AirPort network passwords from the login keychain: Select the "login" keychain from the Keychain sidebar. Click the "Kind" column to order the list of keychain items by their type. Remove all entries of the kind: "AirPort network password".
    Remove your AirPort network passwords from the System keychain: Select the "System" keychain from the Keychain sidebar. Click the "Kind" column to order the list of keychain items by their type. Remove all entries of the kind: "AirPort network password".

Note: The above steps will remove your Wi-Fi network passwords. If you do not know them, or if your network does not use passwords to restrict access, you should contact your network administrator.
    Restart your computer.
    Join your Wi-Fi network. You will need to enter your password for your network again if it requires one.
    Regards,
    -Norm G.

  • TS1398 iphone 5 and sky hub? My phone connects intermittantly and quite often cannot find the network. Also does not reconnect automatically? Any ideas?

    My phone connects intermittantly and quite often cannot find the network. Also does not reconnect automatically? Most of the time says unable to join network? My laptop and ipad seem fine? Very annoying Please help!

    All the information you need is right here: http://www.apple.com/iphone/specs.html
    Notice there is no mention of WiMax.
    It doesn't really matter anyway as Sprint is rolling their WiMax network down for use by MVNOs. Actual Sprint customers will not have access to WiMax at all. It was a failed experiment.

  • Iphone 3GS no battery charging icon, does not show charging, does not get recognized by computer or Itunes.

    Iphone 3GS no battery charging icon, does not show charging, does not get recognized by computer or Itunes, have tried restore mode & DFU mode. Bad battery or port?

    iPhone not appearing in iTunes

  • IPod model A1059, freezes, unresponsive to all click wheel entries.  Reset does not work.  Does not show up in ITunes or on windows explorer.  What is the problem and how do I fix it?

    IPOD model A1059 appears frozen and is unresponsive to all click wheel entries. Reset does not work.  Does not show up in ITunes or in Windows Explorer.  What is the problem and is there a fix?

    If you are unable to reset the iPod (assuming the hold switch is not in the On position either), then you'll have to let the iPod's battery fully drain. Then connect it to a charger and leave it to charge for a couple of hours.
    B-rock

  • I have a new laptop and I am trying to download CS3. The site on adobe gives an error message and the one I tried from this forum downloaded CS3 extended, so my serial number does not work. Does anyone have any suggestions. Regards Vicki

    Hi,
    I have a new laptop and I am trying to download CS3. The site on adobe gives an error message and the one I tried from this forum downloaded CS3 extended, so my serial number does not work. Does anyone have any suggestions. Regards Vicki

    The trial is always extended. The serial number you enter determines whether it runs as standard or extended.
    I'm getting through fine with that link, so it must be a browser issue or some such thing. Try another browser.

  • I bought Adobe Elements 12; I cannot use panorama photomerge, I have followed the directions to go to Full Edit  mode in edit workspace choose File New Photomerge. However the Photomerge does not work, it does not respond.   The only thing I can come u

    I bought Adobe Elements 12; I cannot use panorama photomerge, I have followed the directions to go to Full Edit  mode in edit workspace> choose File> New> Photomerge. However the Photomerge does not work, it does not respond.
    The only thing I can come up with is that I found a blog that said that in the Trial version Photomerge does not work, however I do Not have the Trial version, I did at one time but I purchase Adobe Elements. Thank you.

    The blog was incorrect. Photomerge should work in the trial, too.
    When things get weird in PSE the first thing to do is to delete the prefs. Go to the editor preferences>general, click this button and restart the editor:

  • Have the IPhone g and when I slide my finger across it to unlock it or even turn it off it does not do anything does anyone know why.

    I have the IPhone 3g and when I slide my finger across it to unlock it or even turn it off it does not do anything does anyone know why.

    Try resetting it: hold the on/off and home buttons at the same time until you see the Apple logo (ignore the off slider that appears first), then release and wait for it to restart.

  • Express does not reconnect after reboot of Extreme

    My extreme is conencted (via ethernet) to my router (bridge mode)
    My Express is connected to Extreme to expand wireless network (bridge mode)
    However when i reboot the extreme, the Express is no longer visible
    I have to reboot as well. is this normal?
    Also, logically (as per above config) the extreme & express are part of ONE wireless network
    So a device conected will "roam" between the 2 as if it's only 1 wifi point (?)
    However when i connect a wireless security camera, it shows me express & extreme seperately (eventhough same name & login)
    and I have to choose to which one to connect.
    IThis means if it's connected to Express & Express stops working, then
    it will NOT got directly to the extreme (eventhough it's well in range)
    Plsd to hear
    Egon

    Hi,
    Firstly, please make sure your Microsoft iSCSI Initiator Service is set to Automatic start.
    Seccondly, I found another thread that had similar problem with yours, you can take its sloution as reference.
    http://social.technet.microsoft.com/Forums/windowsserver/en-US/ff26e741-0e2d-47f9-9132-859750ef1514/windows-2008-iscsi-does-not-automatically-connect-to-targets-after-reboot?forum=winserverClustering
    In addition, please refer to the blog below for more reference to set ISCSI connect automatically after system reboot.
    Managing iSCSI Initiator connections with Windows PowerShell on Windows Server 2012:
    http://blogs.msdn.com/b/san/archive/2012/07/31/managing-iscsi-initiator-connections-with-windows-powershell-on-windows-server-2012.aspx 
    Roger Lu
    TechNet Community Support

  • Airport does not reconnect after standby...

    Is anyone having issues w/ wireless not reconnecting after standby? In order to resolve the problem, I have to turn airport off then back on. Most of the time I can get back on using on/off method, but seldomly I have to reboot. This is my config:
    SSID is not broadcasted, using capital letters and numbers for SSID Name.
    WPA TKIP set for router encryption. WPA Personal selected on Airport.
    I don't seem to have this problem on my Macbook running Leopard, so I'm pretty sure it's hardware/driver related to my Macbook Pro. I have to keep tabs on this, but I almost think this problem does not appear when a network SSID is broadcasted and/or unecrypted. It could be my imagination but not sure.
    Any ideas or same issues out there?

    I always have the same problem; I assume it has something to do with the fact that I regularly switch my cable modem to "standby" when done surfing the internet. Seemingly Airport loses the signal (or whatever) because the modem isn't feeding a signal being in standby mode? When I turn the modem back on, I have to turn Airport back on as well. So far, I've just felt it to be a small inconvenience.

  • Solution for 'my mac will not reconnect after sleep'

    After lots of trial and errors I found the way around the problem of dropped or very poor wireless connection after you put your mac to sleep.
    I have no idea what the problem really is but this procedure has stopped me from throwing my brand new MacBook through the window.
    1) Go to System Preferences -> Network -> Advanced
    2) Remove any network you have there memorized
    3) uncheck option 'Remember any network this computer has joined' (leave the other options also unchecked)
    4) press ok and switch AirPort off ... then on (make sure you have 'Show AirPort status in menu bar' checked)
    Now the only real change we've made is to stop Mac memorizing our network - but here lies the solution.
    Put your MacBook to sleep and than wake it up. It will not connect to the network (none are memorized) but all you have to do is choose your network name from the list on the menu bar. It might ask you for the key but in my case it simply asks for permission to use my KeyChain (memorized WPA2 password).
    Once I press 'Allow' .... it works as it should! eureka!
    Do not check 'Remember this network' when asked for password.
    As long as Mac does not store your network details it reconnects without problems, once you allow it to store these details, re-connection after sleep goes pear-shape.... figure it out Apple!
    I hope this might help you (as it most certainly works for me)
    best regards
    ffar

    I've run Keychain utility. I also removed (as suggested in various places) any entries referring to my wireless password in KeyChain and allowed them to be memorized again. It doesn't change a thing.
    Please understand me correctly. My Airport does re-establish connection automatically (if network details are stored) but connection is extremely flaky, slow and with frequent dropouts. So the Keychain is not to blame here (I think).
    If I establish connection 'semi-manually', as described in my previous post, it is perfect, just as it should be. This would indicate to me that the problem lies not with the Keychain, but in the way OS stores network details.
    If I do not allow OS to keep network details - re-connection works.

Maybe you are looking for

  • Cant Update iSupplier Bank details after approved,need to modify account no

    I created the bank details in iSupplier and approved it. Now While trying to update the bank account number, in update page the field is not editable. The only fields that are editable are End dates and Bank Account Name. Is there a way i can make Ac

  • Read custom field's values in GRAC_UIBB_ACCESS_REQUEST

    Hi All, We have added new fields in webdynpro component: GRAC_UIBB_ACCESS_REQUEST and displayed new fields in front end. Enhanced above webdynpro component but not able to read those new field's values inside the enhancement, as the context doesn't h

  • How to fix blocked plugin

    how do i fix blocked plugin?

  • Application Failed codesign verification

    hi people! I'm stuck on a finel step: uploading the app via Application loader. Yes , I have already searched this forum and it seams that all my certificates are right. any ideas? please, I'm running out of time.

  • Cancel goods issue using Idocs

    Hi, I'm trying to cancel a goods issue on delivery using idocs. I would like to use either WMMBID02(Message type WMMBXY) or DELIVERY03(message type SHPCON). Is it possible or not? If not, which idoc do I have to use for this Thanks