Can no longer connect to WiFi at work

I have a fairly new MacBook and have been connecting to the Wifi at work for months. Suddenly yesterday it would not let me connect. I ran the diagnostic on the page and it told me I had a self-assigned IP address and it wasn't valid. Nothing has changed since that last time I used it a few days ago.
Any ideas how to fix this??

Welcome to Apple Discussions!
First of all, see if the network has a new password and new encryption level?
Ask the administrator if they are now using MAC (Media Access Control) specific address filtering. If they are, that address is either in your battery bay or under your Airport section of your System Profiler in Apple menu -> System Preferences -> More Info. They would need that address to be on their router to allow you in.

Similar Messages

HT5569 Since upgrading to 7.1.1 last week, I can no longer connect to WIFI on my iPhone 4S

Since upgrading to 7.1.1 last week, I can no longer connect to WIFI on my iPhone 4S

No, it is not a known issue. It is a known non-issue. Try resetting your IMAP login ID and password. Both the incoming and outgoing. If that fails delete the account reboot the phone, and add it back.

Updated to iOS 7.1.2 - Can no longer connect to WiFi

There is clearly a bug introduced after updating to iOS 7.1.2 and I inadvertently repeated this mistake on two iPhones (5 and 4S).
Immediately after updating to the latest iOS, I was experiencing sporadic WiFi drop outs, especially for short time immediately after taking the phone out of standby.
Then I attempted someone's 'brilliant' suggestion of selecting "Forget Network" and then adding it back in. THAT was a huge mistake because after doing that and reconnecting to my WiFi network, everything seemed fine until I woke the phone (iPhone 5) from its next standby. Since then, I can no longer connect to my WiFi network. In fact, no WiFi networks in my vicinity appear! In order words, I am now completely reliant on my limited data plan!
To make matters worse, because of this screw up, my cell data plan exceeded my 3 GB usage and I had to pay $60 in overage for July! I am not happy!
This is made even more outrageous considering that Apple hasn't acknowledge this issue!
BTW, I have tried and wasted a LOT of time trying each of these so-called Apple remedies:
Blog entry titled, "
How to fix Wi-Fi issues on your iPhone or iPad after updating to iOS 7.1.2"

AmishCake wrote:
There is no need for Apple to acknowledge anything, because it is not a bug.
Yeah, I've seen the play out before with past iOS updates (re: unresponsive slide to unlock/cannot answer calls). Thousands of people complain but the AFB's jump all over them by calling them newbs or worse. Then Apple releases a patch and the problems quietly disappear. It is kind of annoying to see this replay! Please don't be so sure that it isn't a bug. The fact is, Apple made patches and despite the homogeneous nature of iPhones, there are still literally millions of possible ways that iOS patches can affect some phones but not all phones. You cannot claim unequivocally, that this is NOT a bug.
So you are suggesting that all the complaints about this issue are imaginary?
As it relates to my situation, I have two iPods, one iPad, two iPhones, a desktop, and an Android tablet.... only the two iPhones lose the WiFi connection (during standby) and these devices were both updated to iOS 7.1.2.
Solution: It's the WiFi on my router that is at fault?
AmishCake wrote:
Millions of people are NOT experiencing this issue. Have you tried rebooting your router by unplugging it for 30-60 seconds?
I never made any claim as to the number of people affected. Besides, even if only 50 people posted messages to this forum, the number of people who do not participate in the Apple forum far outnumber the people who do.
With all due respect, I appreciate your attempt to help. In fact, to humor you... I will power off my router, just like you describe (can't hurt... it hasn't been powered down in about a year now).
I'll reply back with a "thank you", if your suggestion worked.

I can no longer connect to wifi (PowerMac G4)

I have a Power Mac G4 that no longer allows me to connect to the internet. I have been using one of those Newer Technology MaxPower 802.11g/b Wireless Adaptor sticks for over a year now with no problems and I know that it is working because I can see that the adaptor is connected to my wireless router in the application. The problem is that when I open Safari and try to navigate to a webpage, it now says that I'm not connected to the internet. Using the check your network utility, it says that my ethernet port has failed or is not working.
I think it has something to do with some recent "cleanup" that I performed on my machine where I used the delete/overwrite free space function (using the Clean Sweeper program from Smith Micro). Do I need to reinstall my OS in order to restore the ethernet connection/capability or is there a quicker/simpler fix? Thanks.

Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
Is that Interface dragged to the top of Network>Show:>Network Port Configurations and checked ON?
The Interface that connects to the Internet, needs to be drug to the top of System Preferences>Network>Show:>Network Port Configurations and checked ON.
Then... Try putting these numbers in Network>TCP/IP>DNS Servers, for the Interface you connect with...
208.67.222.222
208.67.220.220
If that doesn't do it, in the Wifi Utility remove any Profiles you have & re-add them.

Can no longer connect to wifi network

My landlord controls our wifi and I assume he has the router or device somewhere in his apartment, as he lives adjacent to us. I used to be able to connect to our wifi network until yesterday when I came back after being away for a month. I expected this, as he had previously sent an email saying he changed the network password while I was away. When I tried to connect to the network, my MacBook recognized the network and tried to connect. Instead of connecting to the internet, the icon had an exclamation point in it and there was an alert that said something like "unable to connect to the internet." I figured this was because of the new password, so I went into launchpad > keychain access > and deleted the keychain that was attached to the wifi login for that specific network. I tried entering the new password but every time I try it says that I have the wrong password, even though I am 100% sure it is the right one. It still accepts the old password but it doesn't connect. I would normally assume that I'm entering something wrong, but the weird thing is my roommate is able to connect using the new password and my iPhone is also able to still connect, even though I didn't make any changes to the settings (I guess it's still using the old password). Does this make any sense? I can't seem to find any answers.

Try the basics first:
Change your router channel number. Most times this works & is all you have to do.
Disconnect & reconnect your modem. unplug it for about 10 seconds. Plug it back in. Do the same for Apple’s routers. Wait for everything to reboot.
System Preferences>Network
Click the Assist Me button.
In the next window that pops up, click the Diagnostic button & do the necessary.
Research Knowledge Base for network problems that pertain to the OS that is currently installed on your computer. See these basic networking KB Articles: http://support.apple.com/kb/HT1401 AirPort troubleshooting guide
http://support.apple.com/kb/HT4628 Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT2712 Using network locations in Mac OS X
Manually provided DNS server addresses are higher priority than DHCP's
http://support.apple.com/kb/HT1714 Solutions for connecting to the Internet, setting up a small network, and troubleshooting
============================
What to do when you can't connect to the Internet
Also, run the Airport Utility app which is located inside the Utilities folder.
=====================
If using a Linksys router, contact LinkSys Customer Support and/or post in their forums.
If using Apple's Airport, please re-post over in one of the AirPort Forums.

Can no longer connect to WiFi after IOS 7 update

I own a small hotel. After updating to the new IOS, no one can connect to the WiFi network on their iPads or iPhones.
Help!

Too little info here to work with however ...
1. Go to SETTINGS on your iphone, then to WI-FI
2. Can you see any networks listed? If not, then you have a problem with your Wireless Router. Reset it and see if it appears.
3. If you can see the wireless network, try to connect to it manually. If this works, then off you go. If not, then you need to tell me what wireless router it is before we can go much further. Also, are any other devices connecting successfully (ie: pre-iOS 7 handsets, Macs or PCs)?

Can no longer connect to WiFi after iOS 6

After updating my iPhone 3GS to iOS 6.0 not 2 hours ago, everything seemed fine - for about 30 minutes. I soon lost all connections to my personal WiFi router in my house (both of them, actually). For a short period of time I was not even able to find networks in Settings>Wifi, even when standing next to my modem & routers.
No searches helped online, and Apple apparently doesn't believe in tech support emails, so I tried resetting my network settings. When I did that, it finally showed my 3 home WiFi networks. However, I'm no longer able to connect to them. When I click on one, it will take me to a "Log In" page at www.Apple.com, where it will say "Hmm, the page you're looking for can't be found" and send me back to the WiFi settings page, and put me on 3G.
This is really starting to get on my nerves, and I understand new OS' can be buggy, but this seems like a bit too major of a screw up to be a simple bug.
Any suggestions? If there's no way to fix it, Apple will have just lost another customer.

Same thing here on all my devices. Basically it seems like there is a web page that the device attempts to connect to confirm internet connectivity after joining a WiFi network which seems to now be a bad link.

Macbook pro retina (1 month old) can no longer connect to Wifi

First of all I love my new mac, had no problems with it so far, and it's more than adequate for my requirements. However came to connect to my Mum's home network today (my iPhone and her windows desktop are connected right now so I know there's no problem with the ISP) and it won't connect, even though I've typed and re-typed the password a million times over. Was thinking initially she's changed the password without telling me, but I know that can't be the case because a) she's a technophobe and b) my iPhone wouldn't automatically connect (it was 3 months since the last time I was over). Then what struck me is last night I had similar issues round a friend's house where I've never connected before, but then so did he with his Macbook Pro (3 years old). However we reset the router and went to bed and this morning his worked fine; mine still nothing. The last time I succesfully connected to a network was on Friday, on the train down here, when I was tethering my iPhone's 3g connection. Could this be something to do with it? I've tried running network diagnostics several times but it never gets to the second stage as it can't connect to this network, which considering I'm using right now, I can assure you is running perfectly smoothly. The main error message I seem to be receiving both today and yesterday is 'connection timeout'. Is there a possibility I have somehow disabled my wifi connectivity? I can't seem to see where though. Having just purchased the mac I would've of course contacted applecare, but rather frustatingly they're closed on Sunday's and with a 3000 word report on HR Management that I need to finish today I can't afford to wait until 8am tomorrow, and I'd really appreciate some help beforehand so I don't have to complete my work on this ancient, virus-riddled pc!!
Many Thanks Folks!
Ryan, Norwich, UK

By Jove, after a couple of hours of stress I think I've just cracked it; I went onto System Preferences> Network> Advanced and then simply deleted a couple of networks I've connected to only once but won't need again and then it seemed to do to the trick. So it looks like you can only store upto 10 networks; I'm astonished it doesn't appear to say this anywhere in the manual!? Maybe it's too obvious and I'm an idiot for not already possessing this knowledge but come on, considering the box 'remember this network' is automatically ticked, surely this is a problem that your average user is going to experience rather frequently. How hard would it be for Apple to introduce an error message along the lines of 'maximum number of saved networks exceeded... Please delete one or more saved networks...'!? As for the applecare centre being closed, it would've been really useful if the sales rep could've mentioned this simple fix; It would have taken all of 10 seconds and would've saved me a lot of time and frustration.
It would be nice if this discovery helps others, but perhaps I should really be apologising for stating common knowledge. Well I guess the lesson here is what I already knew; the more you experiment with OS X the more you learn. Thanks to anyone who may have helped, back to the work now ....
Ryan

Can no longer connect to WiFi popup does not appear

I have a iPad gen 4 and a iPhone 5s and neither will connect to my business Wi-Fi. The issue is that I can log in and then the login process requires me
to okay the request. The pop-up to okay never appears. This stopped working when I upgraded my iPad gen 1 from iOS5 to iOS6. At that time my iPhone 5 also stopped when updated to iOS6. The block pop-up's is off. I was hoping that this might get fixed when iOS7 came out. Unfortunately not. Any idea's how to get around this.

Same thing here on all my devices. Basically it seems like there is a web page that the device attempts to connect to confirm internet connectivity after joining a WiFi network which seems to now be a bad link.

My wife's iPhone 4s and my 5 can no longer connect to wifi this morning (1-1-13).

We both get an error message that says "Unable to join the network...". We have never had a problem before. Our iPad 2 connects with no problem, as well as other wifi devises. Don't know yet if it's just our home network or other.

Also try holding the home button and power button down together till the white apple logo appears, that does a hatrd reset on the device and usually helps sorts most problems.

Can no longer connect to wifi on my iphone4s ,it won't come on, grayed out

Got a replacement iPhone 4S about 2weeks ago,everything worked ok until I noticed that wifi was off and I went to next page and that page was dim or grayed out,hast came back on.tried all the standard remedies,restart,network reset,not sure what else to do,been told it could be software issue

You have tried most of the steps but there are more and are in the article below:
http://support.apple.com/kb/ts1559
If after all steps the issue remains take the phone back to an Apple Retail Store to be evaluated
hope this helps

Since this last update, I can not longer connect to wifi

What is the fix here???? Frustrated and ****** off!

Hello jmichel216,
It sounds like you are unable to connect to any Wi-Fi network after updating your iOS version. I recommend the troubleshooting from the article named:
iOS: Troubleshooting Wi-Fi networks and connections
http://support.apple.com/kb/ts1398
Restart your iOS device.
Unable to connect to a Wi-Fi network
Verify that you're attempting to connect to your desired Wi-Fi network.
Make sure you're entering your Wi-Fi password correctly. Passwords may be case sensitive and may contain numbers or special characters.
Reset network settings by tapping Settings > General > Reset > Reset Network Settings. Note: This will reset all network settings including:
previously connected Wi-Fi networks and passwords
recently used Bluetooth accessories
VPN and APN settings
Thank you for using Apple Support Communities.
Take care,
Sterling

When I upgraded my iMac to Lion I can no longer connect the iPad 2 to WiFi. It gives me a message unable to search for WiFi. Before the upgrade to Lion it worked fine. What gives?

When I upgraded my iMac to Lion I can no longer connect the iPad 2 to WiFi. It gives me a message unable to search for WiFi. Before the upgrade to Lion it worked fine. What gives?

Could there be a setting I need to adjust in the iPad2? When I try to turn on WiFi and enter the name of the WiFi that I have established, including the security type and the password, I get the message "Could not scan for wireless networks." Is there a setting in iCloud or other location that needs to be changed?

Why can I no longer connect to WiFi.... I have an iPhone 4S fully updated but recently my WiFi stopped working and I can't turn it back on...

Why can I no longer connect to WiFi.... I have an iPhone 4S fully updated but recently my WiFi dropped off and I can't turn it back on. The option is there but the button won't slide across and the word "WiFi" seems to be a lighter shade

Yes, I do have that problem too !!!
i did an update and it worked for 5 minutes...after that it went off again and the wifi button in settings doesn´t react

I can no longer print using wifi. I have to connect a USB cable to print. Setup and pref show that I should be able to print wireless but I keep getting printer not found msg when trying.

I can no longer print via wifi. I could at one time but now I have to connect to printer with USB. All settings appear correct in printer and macbook. Sys pref shows printer with green light next to idle. Sending a print prompt results in "searching for printer, printer not found, ensure printer is turned on". I have reinstalled printer in my print list and reinstalled printer software on macbook. Kodak 5250 AiO printer shows it's configured for and on wifi channel. I go online with laptop using wireless but cannot print. Help!

If you know the IP address of the printer, then you can check if there is a working path between the Mac and printer. This can be done using Network Utility or a web browser.
If you open Network Utility and select the Ping tab, you can enter the IP address of the Kodak and then press the Ping button. If there is a working connection then you should get a reply to each packet sent.
With the web browser, many devices have a built-in web server so you can type the IP address of the printer into the browser and if there is a working connection then you will open the printers web page.
So, are you able to confirm you have a working connection between the Mac and printer?

Can no longer connect to WiFi at work

Similar Messages

Maybe you are looking for