My imac keeps losing ISP, INTERNET AND SERVER but still has WIFi

my iMac keeps losing ISP, INTERNET and SEVER but is still connected to the Wi-Fi and when I tern on the mac i have to connect it every time and it is on preferred net work its the Olney one then after I connect it works for about 20 min then stops and I got to network preferences and click on ASSIST ME - DIAGONSTICS and it shows ISP INTERNET AND SEVER ALL IN YELLOW.

Open System Preferences Network pane. In the sidebar, if you see things you do not use for networking, remove them (you can add them back later if they are ever needed). For example, if you don't use Bluetooth or FireWire for networking, remove them from the list of networking services. To do this, select the item on the list and click the minus sign at the bottom of the sidebar. You can leave Ethernet on the list.
NOTE: Bluetooth and FireWire networking is not related to their use for connecting devices.
Also, click on the gear icon at the bottom of the sidebar, and select Set Service Order. Make sure Wi-Fi (or AirPort for older Mac OS X) is at the top of the list.
Apply the change (and maybe restart your Mac as well). See if that makes any difference.

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IMac keeps losing ISP, internet and Server but still connected to wifi

My Imac keeps losing ISP, Internet, and Server but is still connected to the Wifi. To recnnect, I have to go into Netwrok Diagnostics - assist me. This is happening every twenty minutes or so (sometimes less). Can anyone help? I might add that we have recently moved house and never had this problem before.

Wifi problems seem to crop up a lot on here and unfortunately there doesn't seem to be a 'one fix' solution.
However, sometimes any one of the following can help although, unfortunately, not always. In no particular order:
Check wifi security - if it's WEP change it to WPA or WPA2 (preferably, as it's more secure)
Change the wifi channel on the router
Create a new Network Location: http://support.apple.com/kb/HT5289
Reboot the router
Also take a look at this link and the links within the article for other ideas. They mainly reference Lion, but still seem to be relevant to Mountain Lion:
http://osxdaily.com/2011/11/06/lion-wi-fi-problems-solution-mac/?utm_source=feed burner&utm_medium=feed&utm_campaign=Feed%3A+osxdaily+%28OS+X+Daily%29&utm_conte n t=FaceBook
...and this link:
http://osxdaily.com/2012/11/30/resolving-stubborn-wi-fi-connection-problems-in-m ac-os-x/

MacBook Pro and iMac keep losing wireless internet connection.

Greetings all, two weeks ago I purchashed a MacBook Pro and iMac and they've worked fine, except for the internet. The wireless randomly goes out, but the airport bars remain. At first I thought it was just pages having trouble loading because of the OS (stupid I know) It's been happening more and more frequently and the only way to solve it is to turn the Airport off and then on which allows the internet to reconnect. My wireless router is connected to an HP an the router is a Dlink 1310 wireless G router. Any help would be greatly appreciated.

Hi all,
It seems I am not alone. There is a very strange problem either with my brand new unibody MacBookPro 17" or the Airport Extreme I am using to connect to the Internet via a cable connected router. The router I am using is Billion 7300 and works fine, and I can even connect to the wireless access via the router and all works fine. I am using Airport Extreme to extend the access area in my house and also use a USB drive for storage attached to the AirportExtreme. The funny thing is that the first couple of weeks I had no problems with the MacBookPro going on the Internet via the Airport. At that time I had the wireless part of the Billion modem disabled so as to avoid possible interference. Suddenly, one day about a week or so ago, the MBP would connect first time to the wireless Airport and to the Internet for only about a few seconds and then no update on any of the web pages. I was suspecting first my ADSL, but that was all along OK. The signal strength to the Airport is strong, but just the connection to the Internet is no longer available. Strange thing is I have in the same room a 24" iMac and this is still connected to the Internet via the Airport with no problems. Same settings on both! I tried everything I could think off on the Airport, tweaked, changed, reset and created new connection - but without any luck. It is as if the Airport decided to just block the MBP for whatever reason. I also have the Little Snitch, which I disabled too.
I was hoping that the latest Leopard 10.5.7 would have a fix for such a behaviour, but no change.
I cannot make any conclusion as everything contradicts: if the MBP wireless has a problem, I wouldn't be able to connect to the Billion wireless; if the Airport is at fault I should not be able to connect to it with the iMac. I go to work where other two brands of wireless hot-spots I use (D-Link and Billion 7402) and I have no problems swicthing between the two. It seems only Apple's Airport is a problem for my new MBP.
It must be something in the software of the Airport or MBP ?!?!?
APPLE, PLEASE HELP, THIS IS ANNOYING.
I already spent three days trying to solve a problem that should be 'No Brainer" according to the Apple's design books. But I do have a problem that I did not know about before.
Thank you in advance for any suggestions.
Vlado Damjanovski, Sydney.

ISP, internet, and server failures constantly.

This has been happening for quite a while now, after 10-15 minutes I will always disconnect from the internet but still have full strength wireless activity.
This is not restricted to my home network as this happens at almost every wireless network I've used.
Does anyone know anyway to fix this?

My Macbook and my Neighbours is doing the same thing. Has been perfect for years, then about 3-4 weeks ago, its on & off etc etc. Hence me being on here looking to see if there is a known bug. Neighbours Macbook just the same, i.e. 3-4 weeks ago......

Is there any simple way I can find out whether my router or my mac air is responsible for dropping internet connection constantly? Often when I do the network diagnostic, the wifi light is green, but isp internet and server are either amber or red.

This is driving me crazy. The router (it came with the apartment) is a Fritz!Box fon Wlan 7240. I would be willing to buy an new airport if that would fix it. But in this country (Germany) you probably can't give things back.

This is not an alternative to Susan Howard's diagnostic questions, only an atempt to collect more data about your situation.
Do you have the instruction manual for your router? I ask because at some point it might be a good idea to reset the router. Turning it off for about 15 seconds then turning it back on helps sometimes. The more basic procedure (this is with my router) is to push the reset. But that would mean you have to re-configure the router with password etc. from scratch.

Imac suddenly dropping ISP/INTERNET/SERVER all the time

Since adding a new Macbook Pro to my home setup my iMac continually drops ISP/INTERNET/SERVER once its connected. All other devices are absolutely fine and connected to BT Home Hub with BT Infinity. When I perform Network Diagnostics it tells NETWORK CHANGE DETECTED - I click OK and its fine for 30 seconds then drops out again. The WIFI light is always green and I've tried 2 other computes and iPhone in the same location and they are fine too. I have also tried resetting the Home Hub but this doesn't help.
I can't help thinking its a device problem rather than a BT problem but wanted to check here first before calling them.
All help much appreciated - as I said this has only just started happening and the only difference to the setup is that I've added a new laptop into the setup.
Thanks
S

Ok, so when you say you lose internet connection, is it disconnecting from your wireless network so there are no bars?
And are there usually full bars?

I have a brand new iMac (late 2012) that keeps losing its internet connection

I have a brand new iMac (late 2012) that keeps losing its internet connection - like every five minutes. I have had it for three weeks. During the first two weeks, it worked flawlessly. However, just as the refund period ended - it became desktop dead weight. Suggestions?

did u ever get a solution to this? I have the same 2012 mines 27". It drops after sleep sometimes and can't find anything. Wifi. Connection to the Internet. I pull up network assistant it just gives me blank stares and restart everything. It doesn't even see the time machines and they are still there. I have it right now in full error and my iphones allowing me to see everything as connected and I'm posting here in the forum while my iMac cannot. Doesn't happen all the time. Not sure why it happens or what's goinng on with It. Works great and then sudden wifi failure to recognize.

I keep losing my Internet connection on my I mac osx 10.7.5 Wi fi and Ethernet. The only way to reconnect I'd renew dhcp but then it will disconnect again less then a minute

I keep losing my Internet on Wi fi and Ethernet, on Ethernet if I renew DHCP lease it will start again put within 20/30 seconds it disconnect again. My laptop , iPhone, iPad my other laptop all work with no problems, so it can't be the router any help please, my iMac is around 4 years old

Hi Ray, no idea what is mentioned in those other links, but...
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 & 10.8…
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...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Is that Interface dragged to the top of Network>Show:>Network Port Configurations.
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
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.

After updating to ios 8 i keep losing my internet connection, and have to restart every time?

After updating my ipad mini to ios 8, i keep losing my internet connection and have to restart.

Hi Turn Router off for 30 seconds Goto Settings Reset Network Settings After reset you need to enter your router wireless key. Also later check on website for a Firmware update for your router. Cheers Brian

I recently installed Os Lion and now I keep losing my internet connection...I think it must be the upload...

I recently installed Os Lion and now keep losing my internet connection, numerous times a day. Before the upgrade, I never had a connectivity issue. Can you advise me how to correct this problem?

The answer may be found in the More Like This column. Have you checked there?

ISP Problems - All network status LEDs are green, except Internet and Serve

System, Macbook Pro Airport Extreme, D-Link cable Modem.
Randomly I loose the internet. I run Network Diagnosis and it shows green for Airport Airport Settings Network Settings and ISP, but yellow and then eventually red for Internet and Server.
I run the Network Diagnostics and it usually will resolve the issue, but I'm wondering if I should be complaining to my cable company or changing some setting.

For anybody experiencing similar difficulties the solution was the security settings on the wirless router. I had to get Orange to access my Macbook remotley to change from wep to wap2.

I keep losing my connection and getting "can't find server" messages. Any suggestions?

I keep losing my connection and getting "can't find server" messages. Any suggestions?

Safari 5.0.1 or later: Slow or partial webpage loading, or webpage cannot be found

Failed internet and server

Hello,
My new imac is giving green lights for Ethernet, Network settings and ISP but red for internet and server. I have another mac next to it which is fine through the same connection and the phone and ipad are fine on the wireless from the same router so its a problem specific to the mac. I have booted the mac from a bootable hard drive of a clone of the previous mac and it connects fine with all green lights so its something to do with the mac settings. I have compared the two macs and the settings are almost identical, IP addresses not clashing but DNS server is the same.
I am tearing my hair out and am thinking of a factory reset but it has a fusion drive and Im not sure how to go about that. It also says on the apple site that if you are going to do a reset make sure you are connected to the internet... but that my problem in the first place!
I really hope someone can help.
Many Thanks.

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

IMac keeps losing Wifi connection

Hello, I'm having an annoying problem where my iMac keeps losing its wifi connection. I've tried many things including messing around with the network preferences and trying an internet range extender. The only thing I can think of is that the distance from my router to my iMac has 4 walls in between, so maybe thats causing the wifi error. The only way to solve this is to disconnect and then reconnect back to the internet. This gets really annoying when I'm watching a video or trying to upload something. Thanks for your help.

Back up all data before making any changes.
Step 1
Take all the applicable steps in this support article.
Step 2
If you're running OS X 10.8.4 or later, run Wireless Diagnostics and take the remedial steps suggested in the summary that appears, if any. The program also 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 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. Continue if you find that Wi-Fi is faster with Bluetooth disabled.
From that same menu, select Open Bluetooth Preferences. If the box labeled Discoverable is checked, uncheck it. Click the Advanced button, and in the sheet that opens, uncheck the top three boxes, if any are checked. Click OK. Enable Bluetooth and test again.
If the application called "Bluetooth Setup Assistant" is running, quit it.
Step 4
This step will erase all your settings in the Network preference pane. Make a note of them before you begin, and recreate them afterwards. It may be helpful to take screenshots of the preference pane.
Triple-click the line below on this page to select it:
/Library/Preferences/SystemConfiguration
Right-click or control-click the highlighted line and select
Services ▹ Reveal
from the contextual menu.* A folder should open with an item named "SystemConfiguration" selected. Move the selected item to the Trash. You may be prompted for your administrator password.
*If you don't see the contextual menu item, copy the selected text to the Clipboard (command-C). In the Finder, select
Go ▹ Go to Folder...
from the menu bar, paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.
Reset the System Management Controller.
Step 5
Make a "Genius" appointment at an Apple Store, or go to another authorized service center.
Back up all data on the internal drive(s) before you hand over your computer to anyone. There are ways to back up a computer that isn't fully functional — ask if you need guidance.
If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.
Keeping your confidential data secure during hardware repair
*An SSD doesn't need to be zeroed.

IMac keeps losing network connection

My iMac keeps losing the connection to my AirPort very sporadically, but very often. I keep having to open Network Assistant, choose the AirPort and the network, and re-enter the password. I then get a message that my network connection appears to be working correctly, which it then is. This could happen several times in a few hours.
I have tried creating a new network, but it still happens. We have 6 other devices on this network and do not have a problem with those devices.
Any advice?

LB60 wrote:
What am I looking for in the window that pops up?
here's a (very crude) screen shot of an iStumbler scan on my MBP
my network is called pegasus. see that it broadcasts on channel 11 (2.4 GHz band) ? see also that there are six other networks broadcasting on the same channel ? now, ideally i would change my channel to broadcast on "5" or "6", but since there are so many networks around, even those would give me interference from other networks nearby.
in the end, i decided to hardwire (using ethernet cables) most of my devices to my router (time capsule) in order to avoid interference alltogether.
also, there could be closed (hidden) networks around that only KisMac would be able to pick up.
lastly, as the read about *wireless interference* revealed, there are other sources that could interfere with your network performance: microwave ovens, cordless phones - heck, even enabling bluetooth on your very own Mac could be a source.
as an alternative to running ethernet cables throughout your place, you could consider *powerline adapters* _*such as these*_.
JGG

My imac keeps losing ISP, INTERNET AND SERVER but still has WIFi

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