Network Diagnostics

new user to this after many years of reading... my first question is why do i keep getting booted off the internet with the Network Diagnostics screen poping up, only for it to then say everything is hunky dory and that i'm connected? back on for 2 pages then off again...
on my imac and powerbook, with virgin broadband, d-link adsl modem. nothing but an external lacie hard drive, three button moue and an imic/m-audio keyboard connected...
secondly how do i change my screen name to my normal 'nich' (thanks auto fill)

I have the same prblem
I don't understand the response to you post, however the only work around that works for me is to play a radio station thus keeping my connection alive. I would prefer not to if anyone else has a solution?????

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I am trying to setup bootcamp on my MacBook Air. Network diagnostics doesn't believe I'm connected to the internet... but I am!!???

I am trying to setup bootcamp on my MacBook Air. I have a wifi internet connection which works fine in Safari etc. However, when I get to the point of downloading the windows install files I am told the network is not connected, but it is!
I have a simple automatic connection set up to a wifi router which works fine for all standard internet functions - mail, safari, downloads in safari etc. Where it falls down is that the system doesn't recognise it in network diagnostics. When I reach the point of downloading win installation files for my air from the internet it says I am not connected to the internet and runs network diagnostics which proceeds to break my internet connection. If I stop network diagnostics, close the windows and simply switch my wifi off and on then I'm back up and running, but the network diagnostics still doesn't believe it.
Any ideas? Seems completely illogical to me...

This is the message I get if that helps anyone...

Why do I have to select my network using Network Diagnostics every time I turn on my MacBook Pro and go to Safari?

Every time I turn on my MacBook Pro, before I can use any programs that access the internet (i.e. iTunes, iBank, etc), I have to go into Safari where it prompts me to perform network diagnostics. (I use a wep encrypted wireless network.)
During network diagnostics, I select my network and at some point it tells me that my network appears to be working properly and then defaults to the Apple.com webpage. I then Quit network diagnostics and exit Safari and then I am fine to do whatever I need to in the other programs.
This is quite annoying and I wish it would just remain on my network without me having to do this every time I turn it on. Is there some thing I can do or some setting that I am missing that would allow me to avoid this?

Is your network hidden? See:
WiFi, Internet problems, possible solutions
Secure your network
WiFi security issues, at home and WiFi hotspots
Change the name of the network and the password, then connect manually and when it asks to save in Keychain do so.
If it's still giving problems and it'a not the router, it's the computer, then go through this list.
Step by Step to fix your Mac

Hi there, i installed a system update earlier on my MacBookPro and now it wont connect to wi-fi, working through Network Diagnostics hasn't solved the issue. all other devices here are connecting normally. any ideas?

hi there, i installed a system update earlier on my MacBookPro and now it wont connect to wi-fi, working through Network Diagnostics hasn't solved the issue. all other devices here are connecting normally. any ideas?

Hi, 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.
10.4 instructions...
Is that Interface dragged to the top of Network>Show:>Network Port Configurations.
If using Wifi/Airport...
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 10.5/10.6/10.7/10.8, 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.

Hi there can anyone help. I am connected to the internet by ethernet but my connection keeps timing out and my network diagnostics shows all green and network connection ok but still no internet connection. the other wireless laptop in my flat works well.

Hi there can anyone help. I am connected to the Internet by Ethernet but my connection keeps timing out and my network diagnostics shows all green and network connection ok but still no Internet connection. the other wireless laptop in my flat works well. Could the other wireless laptops being used in my flat be affecting my connection. what can I do to get connected, keep connected. Thanks for any ideas out there.

My network connected for a few hours then went back to timing out. I have not changed anything. However there four additional laptop users in my family who do not seem to be having any problems using their wireless connection. Could their film and music downloads be causing the timing out of my connection and if so is there a way I could prioritizes my computer or limit their use?

Network diagnostics is not accepting the WEP password on my wireless router. I know the password is case sensitive and was very careful in entering it but it still gives me the "Unable to join Wi-Fi Network" error message.

I need help setting up the wireless router for my iMac. I did not know the WEP password when I first turned it on to set things up. Now that I know the WEP password I cant get Network Diagnostics to accept it. I know it is case sensitive and was very careful when I entered the password. What should I do?

Hi, unfortunately WEP is about as secure as a bar of gold lent to a Gang Den! It can be broken in under 30 seconds these days!
If the PW is ASCII, try enclosing it in qoute marks, if Hex try preceding it with the & or % sign.
Also, is the Router set to only allow connect ion to MAC addies of the Interface?

Network diagnostics asks for password for wireless network with no security

hi
I am trying to connect my Mac Pro to a wireless network which has no security settings. Other Macs in the house connect to the network with no problem, but the Mac Pro doesn't. I am setting up a new network as I have moved house. In the previous house the wireless worked fine on the Mac Pro.
When I click on the Airport Icon in the menu bar, the search wheel shows and it finds the network, but when I click on the name of the network typically it doesn't connect. Occasionally it does connect, and I briefly have internet access, but then the number of bars on the Airport Icon gradually reduce and then I can't connect again.
When I run Network Diagnostics from Safari, it finds the network also, but then typically asks for a WEP password for the Wireless Network when I haven't added any security to the network (occasionally it doesn't ask for a password and I can connect briefly)
I have tried resetting my Time Capsule and creating a new wireless network with a different name, but still experience the same issues.
I wonder if someone has any ideas as to what might be going on, and how I might be able to troubleshoot this.
Thanks
Nick

It is one of mine. Yes. It connects to it no problem, just doesn't connect to the actual internet. Network diagnostics has all green lights until the ISP and/or Internet point. If I walk through diagnostics, it will get to the point where it says that the network requires a WEP password. I don't know why it does that because my network is not password-protected (husband claims it doesn't work well with his VPN system to get into work network). If I leave it blank, the connection will work. Eventually, after the computer is put to sleep, I will have the same problem upon waking up. I just tried renaming the network and removing all preferred networks and rebooting. Let's see how that works.

When I try to download the windows support software it is coming up with an error message saying I am not connected to the internet but having checked the network diagnostics several times I am definitely connected but it still won't work. Any ideas?

When I try to download the windows support software it is coming up with an error message saying I am not connected to the internet but having checked the network diagnostics several times I am definitely connected but it still won't work. Any ideas?

I get a problem like yours. I have a mac mini with 2 hdds the server and hd2 I installed windows 7 and the windows works fine. except it will not allow me to get on the net. I get error 651. I can boot back to lion and the internet connection works. I googled and error 651 does seem to show up. I would like a work around.

I have to go through network diagnostics every time, how do I fix that?

Every time I connect to the wireless internet in this house I have to go through network diagnostics and type in the password and click click click. My friend fixed it once so that it just automatically connected without making me go through network diagnostics at all, but I connected to another network here and now every single time I want to go back to my original network I have to go through network diagnostics again! I want to automatically go to the original network, I don't want to use the other one. My "friend" wouldn't tell me how he fixed it, and now that I need it done again we're not talking any more. Please tell me what to do on Leopard so I don't have to go through network diagnostics again! It's really annoying..

Coolnewshoes --
I asked for help with your problem,
and this was sent back to me by a great helper here:
+The OP (That's you, cool) will need to know the connections settings info that was provided by his ISP (or IT manager if he is using a shared network such as is furnished at work, school or apartment.) These data include his username and password that he has been entering manually, but other info may also be required depending on how his service establishes connections. If he does not have this info, he should contact the IT manager or ISP's Help center.+
+To be sure he is starting fresh, I suggest that OP restart his Mac immediately before undertaking the setup process.+
+For the simplest way to establish the network, OP can use Network Setup Assistant, which is available by clicking the "Assist me... > Assistant" buttons once OP has opened the System Preferences > Network. If his Mac is working correctly, using Network Setup Assistant should establish and save the default connection settings for him merely by following the on-screen prompts and using his connection info from his ISP/IT. If he has problems or want to do it manually so he can see exactly what is happening, he can follow the instructions from the following Help files.+
+Start with Mac Finder > Help for Mac OS X 10.5 Help: Setting up a network connection service.+
+I use a separate location for "Home Wireless" versus "Home Ethernet." Setting up two locations lets me change connections with just one (Location) mouse click from the Apple Menu. For help see Mac Finder > Help for Mac OS X 10.5 Help: Adding a network location.+
+To designate a particular wireless connection(s) as the default network connection at this location, see Mac Finder > Help for Mac OS X 10.5 Help: Choosing preferred AirPort networks.+
+These Help pages are so clear I cannot say them any simpler.+
+Going into "/System/Library/CoreServices/Menu Extras" is unnecessary. There is a checkbox for this in System Preferences > Network. Once there, click on "Airport" in the sidebar in the left side of the pane and then select the checkbox near the bottom.+
I hope this helps you, cool.

IMac will not load internnet sites despite it having all green lights on the Network Diagnostics screen. In other words there is a valid internet signal going into the iMac, but the machine will not load sites. Help? iOS 10.9.5

iMac will not load internet sites, despite having all green lights (strong WiFi signal etc) on the Network Diagnostics screen. in other words there is a strong
internet wifi signal going into the iMac but the machine does not connect to the internet. I OS 10.9.5. Other devices work fine with the same internet signal.

iOS 10.9.5 does not exist.
iOS refers to the operating system on iPhones, iPads, and iPod Touch.
10.9.5 was never a version of a Classic operating system.
10.9.5 was a version of Mac OS X, and is 13 years newer than Classic.
Here are reasons for WiFi signal to fail even when they appear to be strong:
Most common Wifi issues
Your Mac may be too close to your WiFi router, in which case, it might be better to connect to it via an ethernet cable if it can't be moved.

Network diagnostics - can't connect through Ethernet...ps3 and old iMac work but I can't get this macBook online...help!?!!

Having a problem out of nowhere really getting this MacBook back online through Ethernet.....it's not the modem because my old computer gets online as well as the ps3.....I think it has something to do in network diagnostics but I can't get it.
Thanks!

hi there-
to determine which network port is being used go to the blue apple > system preferences > network and then on the show scroll menu select "network port configurations". then make sure the card is detected there, select it, and then deselect any unused network ports. (the rest of them). [ 8 ) ]

Internet suddenly not working - network diagnostics disagrees. All other ccomputers in house are fine.

I am running 10.6.8. Suddenly yesterday without warning my browsers were no longer able to connect to any page. Network diagnostics claim that "internet appears to be working correctly". Restarted airport. Restarted computer. Other computers in house connecting just fine. Tried pinging ggoogle.com in terminal. Haven't tried connecting to other networks.
Ideas? Thanks in advance.

The OP tells us he has already done that. Might be worth shutting down your machine, unplugging all unnecessary accessiories, wait a minute or so then restart without the accessories.

Where is Network Diagnostics program?

When I am having network problems, I find the most useful program is the network diagnostics program that automatically pops up when safari is having problems with the connection.
It usually pop ups after a minute or two, but I would like a way to quickly bring it up. I don't see it in the applications folder and spotlight can't find the application. Is it under another name? Is it just part of safari?
Thanks.
Tony

To run the Network Diagnostics:
Click "Assist me" in the Network pane of System Preferences, then click Diagnostics to open Network Diagnostics and follow the onscreen instructions.

My Macbook pro processor is a 2.4 GHz intel Core i5 using Mac OS X. I go to the network diagnostics and it starts to work. After about a minute the ISP and Server fail. Same thing happens when I try again. My desktop internet works fine.

My Macbook pro processor is a 2.4 GHz intel Core i5 using Mac OS X. I go to the network diagnostics and it starts to work. After about a minute the ISP and Server fail. Same thing happens when I try again. My desktop internet works fine.

hello I am in Afghanistan i searched that in realtek but that told me you coulde not use this sit
I writ again my problem
i installed win 7 32 bit in my mac pro 13-inch, Late 2011 Processor 2.4 GHz Intel Core i5 Software Mac OS X Lion 10.7.2 (11C74)
but there is no sound in windows 7 please send me a address sit for downoad driver that i can use in Afghanistan
believe it is confus me and other friend that bought 5 mac's that are the same and i serched a lot of site without result

Internet won't work unless using network diagnostics, every 5 minutes

MacBook 2,1 - 10.6.8
In the header I already described my problem and it's a REALLY weird problem.
So if I restart my MacBook I can go browse for about 1-10min, then it just keeps loading and if you wait endless it gives me a network error message. When I use Safari it point you to the "network diagnostics" software, which I found very helpful, because when I just keep pressing next Internet works again all of a sudden?!? BTW the last two indicators are most likely always red or yellow (Internet and Server), everything else is green. It's not a problem with my WIFI either, because I can see other network devices AND … now comes the funny part, IT WORKED BEFORE!!
It always worked flawlessly before, before I made a Backup of my current state (just updated to 10.6.8 and made a Time Machine Backup), because I wanted to make a fresh install. I deleted my partition and tried to install 10.7 from an external HD. The problem is Lion needs at least 2GB of Ram, otherwise it won't let you install it.
OK. So I got my 10.6 image and put It on my external drive again, started it up and made a fresh install.
After the install it asked me if I want to restore anything from a old Mac or a Time Machine backup, which I did (restored everything, from settings to apps). Of course some Apps didn't work like MacAppStore (requires 10.6.8) so I tried to make a software update which was a PAIN IN THE A**, because it always stopped after several minutes but kept trying to download (until several minutes it gave me an connection error). "SOLUTION" using network diagnostics and klick all the way throught and all of a sudden the download continued (if it haven't timed-out already). SO… the problem was there already after the fresh install of 10.6 and continued after install the 10.6.8 Combo and any other update!…
WHAT THE HECK?!?…
so for the guys who don't want to read throught all my story:
Internet (over Wifi) keeps dropping (every 5 min) until I run network diagnostics every time! (worked before!!)… only after fresh 10.6 install and TM-backup restore.
And NO, I DOUBT that my router is the problem, because it worked before and this problem occurs on all Wifi networks.
Also no settings changed (DHCP as before, IP and everything else are fine).
This problem is REALLY annoying. Thanks for your help!

Not too sure but had a problem like this once, try deleting your current "location" in Network Settings and just make a new one with some new name. ("this ain't Kansas anymore" conclusion: some part of your software, drivers or frameworks suddenly thinks its in some strange environment, "coincidentally" by the same old name, but definitely, now, somewhere else)

Network Diagnostics

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