Yosemite 10.10.1 - DNS cache does not clear when switching between WiFi networks

Before updating to Yosemite, DNS caches would clear when switching between WiFi networks, as they should.
For Example, when using an Exchange server, your server name might be something like mail.company.com. Outside of the corporate LAN the IP would resolve to the outside (WAN) address. When you move the laptop inside the corporate LAN, it should clear the cache so mail.company.com resolves to the internal (LAN) address.  This is just one example of a dumb DNS transition not taking place switching from outside to inside (and vice versa).
Instead, OS X is holding onto the outside DNS record even when moving to the Corporate LAN. The only way to fix is to run the DNS cache command (which is MUCH more convoluted in Yosemite now), or more easily, to quickly turn off then turn on WiFi.
This is an irritation as I have to perform this action every morning, and every time I come back to my desk from offsite.

Well, clearing the caches is as simple as this, no?
Clear MDNS Cache
sudo discoveryutil mdnsflushcache
Clear UDNS Cache
sudo discoveryutil udnsflushcaches
One other thing: Have you tried 10.10.2? There are many many fixes in 10.10.2 over 10.10.1.

Similar Messages

  • HT5343 Resetting the DNS cache does not seem to work on OS X 10.8, what does really work?

    Resetting the DNS cache does not seem to work on OS X 10.8, what does really work?
    Desired activity: access a site that used to not have a SSL connection through the new https:// root domain. I can accomplish the task over a machine running Windows 7 or XP but flushing the dns of my mac does not affect the outcome — I am still redirected to the hosting provider's website whenever I tried to access the domain with a https:// prefix rather than http://
    I tried sudo killall -HUP mDNSResponder and it's older alternative but no luck.

    In the terminal:
    dscacheutil -flushcache
    and to get a very detailed report on the state of your DNS cache in /var/logs/system.log:
    sudo killall -INFO mDNSResponder

  • After hiighlighting a word and pasting it into another document, the clipboard does not clear ;when I hit enter it pastes again and again. How do I fix it?

    When I highlight a word or phrase and copy to the clipboard, then paste it in another area the clipboard does not clear the phrase. Therefore, every time as I type and hit the enter key it continues to paste the phrase all over my document. I do have the latest download of Firefox installed (16.0, win 7 and that is when this started. How do I stop this obnoxious behavior so I can type a sentence with normalcy?
    Louise

    Thank you, Iusually do that first thing with any computer problems. Old school computer fix. Hard Boot regardless! lol Thanks again.

  • My ipad 4 does not connect with my home wifi network

    my ipad 4 does not connect with my home wifi network

    Try this:
    1. Turn router off for 30 seconds and on again
    2. Settings>General>Reset>Reset Network Settings

  • IPhone speaker does not work when switching call to hands free option

    having problems with IPhone speaker, not working when switching phone calls to speaker mode, any suggestion?

    Same problem - I was on the phone last night and the speaker switched off and can't figure out what happened. I tried to reset the phone, no sound is working.  I can hear a phone call if I hold it up to my ear. Very frustrating as my phone is less than 3 months old. Tracy

  • Clear cache does not clear all the cache

    Hi,
    After clearing the cache, the browser assumes some of the files are still cached so it won't try to get the file from the server. This causes the website to hang as it does not timeout.
    It does not always happen, for example in my machine is OK, but a colleague's machine has it consistently and other people too.
    The only way that they could make it work is going to about:support and doing a reset.
    The Troubleshooting Information I've added is from the problematic machine.
    regards,
    Daniel.

    They use the built-in means to clear the cache.
    Tried deleting the cache folder but it did not help.
    Tried also deleting the profile folder contents and it did work. I guess that is similar to reset functionality.
    Still, if clearing the cache folder worked would be a a workaround for us, as developers but not something we could ask from our customers.
    You can try it with this URL:
    https://hornbill.socialworkforce.com/socialworkforce/user/lib/hux/server/comboloader/comboloader.php?ver=1.1.0&../../ext/yui3/../../../esp_hux/components/Xmlmc/Xmlmc-min.js
    Again, they are able to load it for the first time, but if they clear the cache, they cannot get the response from that url, in fact there is not even a request from the browser.

  • MY history does not clear when i select clear history +clear is on"everything" ?

    clearing history does not work anymore, I select the option to clear everything. In order to clear history I have to go under show all history and delete each individual item

    I have the latest version. I have History only selected. When I manually select Clear Recent History, it deletes some items but not everything. I just performed Clear Recent History and 8 sites are still showing up. None of them are in my Bookmarks and most of them I haven't visited in weeks. It is a real pain finding the sites that I would like to select when all this garbage fills up the list.

  • Menubar does not change when switching apps

    Sometimes when I switch applications, the menu bar does not change.
    The proper menu bar is there, I can use it, but the text shown is some previously focused application.
    Switching apps once or twice fixes the issue, but it is very annoying.
    This is a fresh re-install of Lion, but I retained my users and applications.
    I have tried removing the systemuiserver plist file and rebooting, but the problem persists.
    Any ideas?

    A link would be nice but I suspect that you are not gettign the finger (you knwo what I mean) when you roll over the link because your href is  not set to anything.
    <a href="" onclick=MM_openBrWindow('images/image.jpg','largeDisplay','scrollbars=yes,resizable=yes,width=100,height=120')
    Set your href to "#" or "javascript:;" - the latter is preferred.

  • Album artwork does not change when switching tv seasons

    With the new iTunes 11, television seasons are now grouped together.  When switching the view from one season to the next, the artwork doesn't change, it remains on the first season.  Is there a way to fix this so that the proper artwork is displayed for the proper season?

    This manual process DOES work to add and save my album artwork. Unfortunately, this is a long process for over 9,000 songs.
    I do not have an Album Artwork folder, but I do have an unknown Album Artwork file, not folder, any thoughts on this? One thing to consider for my situation is two things:
    1. To separate my music files from my regular files, I keep my music files on the D:, away from my Itunes folder on my C:
    2. To conserve space, I do not allow Itunes to make a copy of my files on my C:
    Could either or both of these issues be the source of my problem? Should I remove Itunes and it's contents and reload the software and start from scratch?
    Message was edited by: pullinmyhairout
    Message was edited by: pullinmyhairout

  • Home wifi password does not save when switching iPod off and on again

    Hi, when using my home wifi on my ipod touch the password does not save and I have to enter it every time I switch my ipod on. Is there a way around this. It was okay when I first got it. I have tried reseting the network settings, but this has not helped.

    If you do a search of the forums, there appear to be a number of postings regarding iOS6, wi-fi security and random disconnection of wi-fi. It appears, as the posts have discussed, it is connected to the use of WPA2 security. Most of the posting, however, have been related to iPhone 5, not the 4S. As far was what was posted, they say Apple has been made aware of the issue and they are looking for a fix. Not sure if that would help the iPhone 4S, because it does not support both bands as the iPhone 5 does. Just remember that WEP is less secure than WPA2. You might also try restarting your router after changing back to WPA2 on the phone, depending on what the router is set for.

  • IBook G3 does not want to recognise ANY wifi networks

    Dudes,
    My iBook G3 running Tiger 10.4.11 simply refuses to pick up any wifi networks.
    I have a router set up which works fine on it via ethernet.
    It can't be a problem with the wifi setup because my iPhone can connect to it fine.
    Can anyone help at all? Have tried rebooting iBook and router, repairing permissions etc.
    I seem to remember having a similar problem a while ago trying to get my new MBA onto the same network as my existing MB - some problem about the router refusing to recognise more than one device attached to it - I had to do a factory reset, if memory serves - but that was running off an Airport Express - this is just a freebie router that came from my ISP.
    Can anyone help at all?
    Thanks so much
    JC

    It could be broken, loose, or bad/frayed Antennae wire.
    Did it work with WPA2 in the past? Some orinal Airport cards could not, of course that wouldn't stop it from seeing it I don't think, but maybe again it would, just not sure on the seeing.
    The Netgear will have better Range & Speed anyway!

  • Time Capsule does not appear in iPhone 4 wifi network setting

    I just set up Time Capsule on my IMac.  I was able to connect to the wifi network but do not see the TC on my phone's wifi network settings. I have the Airport Utility app and I do not see my phone on the any of the Airport utility maps on the Mac or phone.  I tried to set up my IPad 3 and no luck it only recognizes the wifi network and not TC. 
    I tried to use the demo that appears on Apple's TC info link and I do not see the same info on my phone when following the directions. I am a new IMac user my be I have a setting wrong. Please help.
    http://www.apple.com/timecapsule/wireless.html

    The iOS devices seem to have issues if the wireless name is AFP type..
    I suggest you go back into the TC setup.. you may need to use 5.6 utility.. to get finer controls.
    http://support.apple.com/kb/DL1482
    Change the wireless name to short, no spaces pure alphanumeric.. I also recommend a different name for 5ghz wireless in the advanced wireless page.
    Set the wireless to fixed, a/n -  b/g
    And then lock the wireless channel.. for 2.4ghz, set to 1, 6 or 11 in turn as the only non-overlapping channels.

  • Input source selector does not show when switching the input source

    Hi,
    I'm running OS X Mavericks on my late-2013 15" MacBook Pro with Retina Display. I set a key combinations in Keyboard section in System Preferences to "Select the previous input source" and "Select next source in Input menu".
    In my previous MacBook, whenever I use the shortcut to switch my input source, there's a selector (as shown below) appear in the middle of the screen showing what input source I am selecting. Strangely, on this new MacBook, it just doesn't show it.
    I thought that this is a change in Mavericks, but a few days ago, I install Mavericks on my old MacBook and the selector does appear when I am switching the input source using the shortcut. I have search throught all the setting in System Preferences, but there is no option to show or hide the Input source selector when switching the input source. Am I the only one? Am I missing something? Is there any fix?
    Thanks in advance.

    Try troubleshooting the adapter > Apple Portables: Troubleshooting MagSafe adapters

  • When Switching Locations, WIFI Network Does Not Change

    Hello All, I have two Wifi Networks at my home. I have a main router and a wifi extender. I have two locations set up {Home, Home (extended)} but when i switch locations, my networks do not switch.

    Double check your network/wifi settings.  System Preferences>Network>Advanced>Wifi 

  • EA1 - bug: worksheet not updated when switching between tables of same name

    Consider this scenario: two schemas, A, B. Each schema has a table X.
    Look at A.X data by selecting A/Tables/X in the connection list and clicking the Data tab.
    Now immediately look at B.X data by selecing B/Tables/X in the connection list.
    Bug: the worksheet viewer does not switch to B.X, but still shows A.X.
    Workaround: Click to another table before going from A.X to B.X.

    I had the same issue (bug: showing data in tables with same name, 2 different databases but I can't reproduce either...
    K.

Maybe you are looking for