Yoga 13 Wireless network authentication problem

I recently bought Yoga 13 and it is a wonderful machine, but since I upgraded to Windows 8.1, I can't connect to my university Wi-Fi.
Recommended authentication method for the university's Wi-Fi is WPA-enterprise/TKIP and it's using personal certificates. Before the Windows update, there was the WPA-enterprise/TKIP option in Wireless Network settings, but now it's gone and it only supports WPA2-personal and WPA2-enterprise with both using AES encryption. I thought, that this is driver problem so I tried both drivers available on Lenovo Support site (I couldn't find this driver anywhere else), but that didn't work.
My last resort would be contacting ma faculty's IT technician, but he would charge me for setting my Wi-Fi, and I don't want to pay for something, which was working few days ago and which wasn't my fault that stopped working (stupid authentication method for university Wi-Fi constantly causing problems is different chapter entirely...)
Thanks for any advice.

It's not a new problem, it's a known problem that no one cares to fix and they continue to sell non-working products. I have a Yoga purchased in Feb 2014, it CAME WITH WINDOWS 8.1 INSTALLED! I invested in a brand new computer to keep my business operating smoothly, only to find out I just dumped a ton of money into the worst peice of junk I've ever owned. The intel wireless adapter is "not compatable"?!? Lenovo had me reinstall over the phone, it worked for 8 hours. Next day- no internet. I took it to the point of sale, they went to the Intel website and downloaded the driver again. That worked for another 12 hours. Every time I move locations and have a new access point, the internet doesn't work. So far the only "solution" offered is for me to send in this brand new business investment to be repaired, which could take 3 weeks. Sure, I'll close up shop so ya'll can work on a POS that was sold with faulty/ incompatible/ not yet compatible drivers (I really don't care what the issue is, only that is is a KNOWN ISSUE that Lenovo acts all surprised about). Every service person I've talked to doesn't have a clue what is going on, yet I can go online and find pages and pages of this very same (unresolved) issue!
-different router and access point does not work
-factory reset does not work, you're just reinstalling the same "incompatible" driver (that mine came with, I did not "upgrade" to anything)
-BRAND NEW, internet has been an issue since before any other programs were installed.
Now my pointer is missing again, so I get to waste another several hours reading through pages of similar issues to try and figure that debacle out. I miss my 15 yr old VAIO!

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Wireless, Network-manager, dbus problem

Hey, I'm trying to connect to wireless network at school using dhcdbd, gnome-network-manager, nm-applet... and it works but get disconnected constantly. Don't know much about networking so could use some help. Here's some output with lots of dbus errors...any ideas? Thanks.
** Message: <information> You are now connected to the wireless network 'XXXXXXXXXXX'.
libnotify-Message: Unable to get session bus: Unable to determine the address of the message bus (try 'man dbus-launch' and 'man dbus-daemon' for help)
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_call: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_disconnect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_disconnect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_call: assertion `DBUS_IS_G_PROXY (proxy)' failed
libnotify-Message: Unable to get session bus: Unable to determine the address of the message bus (try 'man dbus-launch' and 'man dbus-daemon' for help)
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_call: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_disconnect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_disconnect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_call: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): WARNING **: <WARNING> nmi_save_network_info (): Error saving secret for wireless network 'XXXXXXXXXXX' in keyring: 2
** Message: <information> You are now connected to the wireless network 'XXXXXXXXXXX'.
libnotify-Message: Unable to get session bus: Unable to determine the address of the message bus (try 'man dbus-launch' and 'man dbus-daemon' for help)
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_call: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_disconnect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_disconnect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_call: assertion `DBUS_IS_G_PROXY (proxy)' failed
libnotify-Message: Unable to get session bus: Unable to determine the address of the message bus (try 'man dbus-launch' and 'man dbus-daemon' for help)
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_call: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_disconnect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_disconnect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_connect_signal: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): CRITICAL **: dbus_g_proxy_call: assertion `DBUS_IS_G_PROXY (proxy)' failed
** (nm-applet:5382): WARNING **: <WARNING> nmi_save_network_info (): Error saving secret for wireless network 'XXXXXXXXXXX' in keyring: 2

When I configure a Wep key to my wireless internet
sharing network, my windows installed notebook can't
connect to my iMac. But when I set up it free the
notebook connects easily.
There does seem to be a known issue with a WEP encrypted software base station and Windows clients.
As far as I am aware there is no way to get a Windows client to connect to a WEP encrypted software base station (sharing internet via Airport on a Mac).
I tried both with ASCII and
HEX keys and generated them from:
You could try a ASCII key of
1234567123456
which will be a HEX key of
31323334353637313233343536
However if this doesn't work then nothing will.
I don't know what to do and I don't want to set a
wireless network free for security problems. Does
anyone know a solution?
Yes, get a wireless router and use that, it really is the only suitable solution.
iFelix

Airport does not detect wireless network; it says problem = [network]"connection timeout"

It is not a problem of signal strength, and my Airport detects other networks. It used to detect the network I want to connect to, for two years. It suddenly stopped detecting the network (which is WPA Personal password-protected). When I select choose other network and type in the password, it won't connect to it claiming "connection timeout."
This happened before. Then after several days, Airport was able to detect and connect to the network I want. Now it again won't detect the network, and this seems permanent short of taking measures to address the problem. Should I try connecting manually to the network, and hodo I got about that? Thank you to anyone out there ho might be able to help.

i have a macmini (OS 10.5) and use a belkin wireless router. When I turn on Mac address filtering on the router I have an Intermittent problem. The airport does not recognize the wireless network. On the network preferences panel there is a message that the airport is using a self assigned IP address. sometimes the message says the airport has no IP address. If I turn off the Mac address filtering and use a WAP password only the network is recognised and connects without a problem. How do I resolve this? I dont have the problem with a iBook using system 10.4. Is turning off the Mac address filtering secur?

Connecting to Wireless Network...PROBLEM

Hello! I hope some of you out here in the cyber world can help me with a problem I am having. I was previously able to connect to my wireless router and then about two days ago, I started having problems. I would suddenly lose my connection to the internet. However, if I went back to the airport icon, and rejoined the network, I was able to get back on. Now I cannot get a connection at all. I am able to join the network and I can see the strength in the airport icon however when I try to access safari, it tells me that I can't connect because "my computer is not connected to the internet. I know the problem is not the router because another laptop in my home is connecting to the network without any trouble. I am thinking it must be something with my macbook and the settings. Any explanations?
Any help will be much appreciated!
Lauren
Message was edited by: Lauren1987

I am not sure if this is the right place to ask for help but I am desperate. I set up my wireless network at home using WPA and a password. When I set it up I set it so that the pass word would be remembered in my keychain. It worked fine until I walked away for 30 minutes and when I came back it went down. Now when I try to get back on the network my password doesn't work. When I went to my settings to investigate the problem I was shown that my password is now different it went from a 8 digit password I created to a 30 some digit password I have never seen. Can anyone help with this problem. I am running 10.4.11 and have a dlink wireless router. Thanks in advance

Need HELP! connecting to wireless network; IP Address problems!

I am trying to connect to wireless networks using the AirPort built into my MacBook Pro. There are two specific networks I am trying to connect to, both are WEP protected. I know the passwords and can get into each of them but I cannot connect to the internet, which is the main reason for connecting to them in the first place! When I go into System Preferences and click on Network, I see that next to AirPort it says I am connected to the network but may not be able to connect to the internet because my computer has a Self Assigned IP address. I assume this means my computer is not receiving an IP address from the network. I am set on full auto with DHCP. So what's wrong? Please Help!!!

That indicates that the MacBook Pro did not successfully communicate with the DHCP server on the network. Do those networks have access control (MAC address filtering) enabled? If so, the best solution is to reconfigure the base station so that this feature is disabled. This adds no real security since MAC addresses are easily discovered and cloned.
If you can't disable access control, you will need to add the MAC address of the wireless interface of your MacBook Pro to the list of allowed clients.

WRT160 wireless network / zyxel modem problem

Hi All,
I want to ask some help with this one. I have a pc (vista) wireless connected to the WRT160 router. This router is connected to my ADSL-connection with a Zyxel modem. Everything by the book. Unfortunatly I can't get on the internet. If I connect my pc directly with this modem with a LAN-connection I can go on the internet. It seems that the router doesn't 'talk' with the modem and therefor I can't get on the internet. Can someone help me with this problem?
Thanx in advance.
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The Netherlands

Access the setup page of the router by launching an
Browser and type on the address bar, 192.168.1.1 and press enter. When
it prompts for the username and password, leave the username field
empty and provide password as "admin" (Without quotes)
click on ok.
On the main setup page the ""Internet Connection Type"" should be
on ""Obtain IP Automatically - DHCP “. Click on the Save Settings
button.
Now click on the sub tab ""MAC address clone"".
- Click on enable
Click Clone & click save settings
Check WAN Ip on Status page of router ....
If getting Valid Ip .... try going online
If you are getting Ip - 192.168.1.X ...change the LAN Ip to 192.168.2.1 ....Power cycle for 3-4 minutes ...
Try going online
If still not working ...use Internet Connection type as PPPOE .... Use Username & Password provided by Service Provider ....
Click save settings....
Look for WAN IP address again under status page ....

WPA2-PSK not an option in Network Authentication

Hi,
I have a T400 but I do not have WPA2-PSK when I'm entering my details in the Network Authentication drop down box.
I have the other options, such as WPA-PSK but I am needing WPA2-PSK
Any ideas?
Cheers
Gaz
Solved!
Go to Solution.

Here is update to Windows XP that adds WPA2-PSK support
http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=1974

Wireless sync. authentication password

I don't remember my email password for my 755p. How do I go about getting it?
Post relates to: Treo 755p (Verizon)

For Wireless Sync password you would need to call Verizon and they should be able to either give it to you or create a new one for you.
Post relates to: Treo 800w (Sprint)

How can I set up a wireless network between two Mac Mini's (media centres)?

I've just received my second mac mini (core duo, 1.83, 1 Gb ram)and want to set up a wireless network to link this with my original mac mini (PPC 1.42, 512MB) and my Belkin wireless router (g std).
I'm using both as media centres in different rooms and want to keep all my media (films, photo's, music etc.) on one mini (connected to a 640GB external drive) and access it over the wireless network. Sort of a more felxible Apple TV setup??
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I know it can be done but would really appreciate any suggestions/directions on what to do?
Thanks in advance<<br>
MacMini PPC and MacMini Core Duo Mac OS X (10.4.9)

Jona11-
Greetings and welcome to the Apple boards.
This document should be very helpful.
Luck-
-DaddyPaycheck

HP 3050 will not stay on the wireless network for more than a few minutes at a time.

My HP DeskJet 3050 J610 is constantly dropping the wireless connection. It won't stay on for more than a few minutes. If I power cycle, it comes right back on, but drops again after a few minutes. It will print fine from a USB. When it drops off, pings time out even though the device shows "ready" in Windows 7, Windows XP and OSX. I've done everything HP suggests - static IP, upgraded firmware, diagnostic tools, etc. I am out of options.
I can hit print right now, printer shows as ready, then I will get a print error. If I go over and power cycle the printer, my document will print - most of the time. It will remain on the network for a few minutes, then stop working. As soon as I power cycle it, I get a few more minutes before it drops. It has always done this from day one.

I don't have another wireless network close by that I could test it on. I'm a little isolated. i might be able to work out a time when I could take it by a friend's house, but he's over an hour away.
I have a Win 7 laptop, a Win XP desktop and an old Mac Powerbook as well as an iPod Touch and iPad 3 that use my wireless network without any problems - besides the fact that hardly any of my devices will talk to the other... But that's an OS issue. They all see the network, and the printer after I cycle the power on it.
My wireless router is a Netgear WNR2000. I remember monkeying with the channels when I frist got this printer a few months ago, but I don't remember what all I did. Since I did a firmware update on the router, the channel is now set to Auto. If there's a channel you think I should try, let me know what it is. The printer shows up on the list of devices in the router, but that may be because I have its address reserved for the static IP. Interestingly, the router sees the printer, even though my devices cannot. I did a ping just now while checking that, and got this - which is unusual. Normally they all time out.
Pinging 192.168.1.150 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.1.150: bytes=32 time=3223ms TTL=255
Request timed out.
Ping statistics for 192.168.1.150:
    Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
    Minimum = 3223ms, Maximum = 3223ms, Average = 3223ms
Played around a bit more pinging between devices and got this oddity - without a power cycle just a couple minutes later.
ping 192.168.1.150 -n 50 -l 500
Pinging 192.168.1.150 with 500 bytes of data:
Reply from 192.168.1.150: bytes=500 time=527ms TTL=255
Reply from 192.168.1.150: bytes=500 time=10ms TTL=255
Reply from 192.168.1.150: bytes=500 time=12ms TTL=255
Reply from 192.168.1.150: bytes=500 time=20ms TTL=255
Reply from 192.168.1.150: bytes=500 time=18ms TTL=255
Reply from 192.168.1.150: bytes=500 time=13ms TTL=255
Reply from 192.168.1.150: bytes=500 time=11ms TTL=255
Reply from 192.168.1.150: bytes=500 time=19ms TTL=255
Reply from 192.168.1.150: bytes=500 time=17ms TTL=255
Reply from 192.168.1.150: bytes=500 time=15ms TTL=255
Reply from 192.168.1.150: bytes=500 time=10ms TTL=255
Reply from 192.168.1.150: bytes=500 time=20ms TTL=255
Reply from 192.168.1.150: bytes=500 time=19ms TTL=255
Reply from 192.168.1.150: bytes=500 time=17ms TTL=255
Reply from 192.168.1.150: bytes=500 time=15ms TTL=255
Reply from 192.168.1.150: bytes=500 time=11ms TTL=255
Reply from 192.168.1.150: bytes=500 time=21ms TTL=255
Reply from 192.168.1.150: bytes=500 time=19ms TTL=255
Reply from 192.168.1.150: bytes=500 time=17ms TTL=255
Reply from 192.168.1.150: bytes=500 time=13ms TTL=255
Reply from 192.168.1.150: bytes=500 time=14ms TTL=255
Reply from 192.168.1.150: bytes=500 time=20ms TTL=255
Reply from 192.168.1.150: bytes=500 time=18ms TTL=255
Reply from 192.168.1.150: bytes=500 time=16ms TTL=255
Reply from 192.168.1.150: bytes=500 time=14ms TTL=255
Reply from 192.168.1.150: bytes=500 time=13ms TTL=255
Reply from 192.168.1.150: bytes=500 time=21ms TTL=255
Reply from 192.168.1.150: bytes=500 time=18ms TTL=255
Reply from 192.168.1.150: bytes=500 time=15ms TTL=255
Reply from 192.168.1.150: bytes=500 time=15ms TTL=255
Reply from 192.168.1.150: bytes=500 time=11ms TTL=255
Reply from 192.168.1.150: bytes=500 time=18ms TTL=255
Reply from 192.168.1.150: bytes=500 time=16ms TTL=255
Reply from 192.168.1.150: bytes=500 time=14ms TTL=255
Reply from 192.168.1.150: bytes=500 time=10ms TTL=255
Reply from 192.168.1.150: bytes=500 time=18ms TTL=255
Reply from 192.168.1.150: bytes=500 time=16ms TTL=255
Reply from 192.168.1.150: bytes=500 time=14ms TTL=255
Reply from 192.168.1.150: bytes=500 time=22ms TTL=255
Reply from 192.168.1.150: bytes=500 time=19ms TTL=255
Reply from 192.168.1.150: bytes=500 time=18ms TTL=255
Reply from 192.168.1.150: bytes=500 time=16ms TTL=255
Reply from 192.168.1.150: bytes=500 time=14ms TTL=255
Reply from 192.168.1.150: bytes=500 time=22ms TTL=255
Reply from 192.168.1.150: bytes=500 time=20ms TTL=255
Reply from 192.168.1.150: bytes=500 time=18ms TTL=255
Reply from 192.168.1.150: bytes=500 time=16ms TTL=255
Reply from 192.168.1.150: bytes=500 time=14ms TTL=255
Reply from 192.168.1.150: bytes=500 time=9ms TTL=255
Reply from 192.168.1.150: bytes=500 time=20ms TTL=255
Ping statistics for 192.168.1.150:
    Packets: Sent = 50, Received = 50, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 9ms, Maximum = 527ms, Average = 26ms
Is there a possibility that the printer is going into a standby state and having trouble waking when traffic hits? I don't know if that's possible, just seems like it looking at this.

Can't connect to wireless network that works fine for other machines

I received my MacBook Pro last week (2.16 GHz) and I've been very happy with it so far. However, when I brought it home, I've had nothing but issues trying to connect to my wireless network. It's a Netgear, and you can read more about it at the following link:
http://www.netgear.com/products/details/WGT624.php
It works great with my Windows XP Desktop (HP Pavilion 1250n) and PowerBook G4. It works with no password, 40-bit WEP and 128-bit WEP. But not with the MacBook Pro. However, my MacBook Pro has worked at my office and StarBucks, so it works sometimes. Is there something special I have to set on my router for it to work with the MacBook Pro?

I also had problems with wireless connectivity while trying to access a netgear WGR614 albeit a v2 base station.
The problem was that I could not see the network from my MBP. It just didn't appear. The network was open with zero security. However my dell laptop was able to connect fine.
I noticed in the MBP config that the wireless locale was set to USA. I however live in Ireland. I then changed the locale inside the netgear 'wireless settings -> region' to United States. Now everything works fine. My dell didn't seem to care either way. It just picked up the new 'USA - region' based wireless network.
The problem now is that I travel quite a lot and usually I won't have the luxury of being able to change the routers configuration.
Is this just a MBP and Netgear WGR614 issue?
If this happens in the future is there a way for me to change the AirPort wireless card locale?
MBP 15" Core 2 Duo Mac OS X (10.4.8)

Can't Get Time Capsule to Extend Airport Extreme Wireless Network

I've searched this forum and read dozens of listings, but nothing I've found gives me a answer for the problem I'm having.
I had an existing network consisting of three Airport Extreme routers, one the master/DHCP server and the other two to extend the network. All of the routers were configured for 802.11n 5 GHz only service.
After much frustration trying to use Time Machine to back up to external disks attached to Airport Extremes as well as disks attached to other Macs, I gave up and bought a Time Capsule.
I have been trying for about six months on and off to get the Time Capsule configured as an extension to the main Airport Extreme as the other two Extremes are.
Nothing I've tried will cause the TC to extend the network. It always comes up with a yellow light and error messages saying that there is a problem with the wireless network and a problem with the internet connection and, sometimes, a third message that I don't remember.
After my initial efforts, I just gave up and plugged the danged TC into the remote AE that is closest to where I use my MacBook Pro and it worked. But I wanted it to REPLACE that AE instead of being an appendage to it.
Due to TC/TM problems, I've twice lost the entire TM backup off of the TC, and tonight I decided it was time to start over. I've encountered the same problems as before, and so finally moved the TC to my home office rack where the main AE is located and plugged it into the AE directly. TM is now backing up, but at a snail's pace (which is why I wanted the TC to be located in the same room where I use the laptop).
Has anyone had success or failure extending a multiple-unit AE network with a TC on 802.11n 5 GHz (not WDS)? If not, has your experience been similar to mine; if so, what did you do that I haven't?
Any specific help will be greatly appreciated.

Yes, I suppose I could do that. But if the wireless extension isn't working in one direction there's no guarantee it'll work in the other direction; and I was trying to avoid upending my entire setup.
And no, I'm not bridging the units with hard-wired cabling; I'm attempting to use wireless to extend them...NOT WDS, which is for 802.11B/G mode, but the 802.11N wireless extension mode that's available on these Apple products.

No longer detetects any wireless network

Hi
My macbook was correctly connected to the Internet via my wireless network, and then it suddenly disconnected. It no longer detects any wireless networks (and there are quite a few usually!)
I tried to turn airport off & then back on, but no change.
I then tried to reboot my macbook, but no change either.
When it searches for wireless networks, it is very slow (sluggish).
I also booted on Windows 7 (dual boot), and it has *exactly the same* problem. Leads me to believe that it is a hardware problem, more than a software one..
The only recent change: I moved from the UK to France few days ago => new ISP & new router (but I doubt this could be the source...)
Is there anything I can do?
Replace the wireless card?
Thanks

By the sounds of it, I've been having exactly the same problem. I will be using my macbook and suddenly the airport will drop out for no reason. Sometimes I can reconnect but often I'll have to try a dozen times or more, with the connection timing out each time. I've actually set up two differently named wireless networks at home to solve this - for a while, if one dropped out, I could reconnect to the other one. Even this has now stopped working. I've tried flicking airport on and off, restarting the airport base stations, I even have one of the wireless networks configured as WDS sending to an airport base station within a couple of metres of where I normally use my machine. Nothing works. I've tried deleting ~/library/preferences com.apple.internetconfig.plist and com.appleinternetconfigpriv.plist and rebooting - for a few times that would fix it, but not any more.
The strangest thing, though, is that if I switch user accounts, I can access the wireless networks again no problem.
It's almost like there's something that needs flushing in the user account's wireless settings - a buffer, or a cache, or something. It'll generally only happen once I've been using the machine for a sustained period of time.
I'm running 10.5.8 with Wireless Card Type: AirPort Extreme (0×168C, 0×86) Wireless Card Firmware Version: 1.4.16.2 if that's of any help to anyone.

MacBook Pro will not connect to Cisco Wireless Network

I have just bought a brand new MacBook Pro, running Leopard (OSX 10.5.1) and I just cannot get it to connect to the Wireless Network at my workplace.
The MBP connects to wireless network and authenticates just fine, but will not obtain an IP address from the DHCP server.
The wireless network consists of 16 Cisco Aironet 1200 Access Points controlled by a Cisco Wireless Network Controller. It does not broadcast its SSID and is WEP 128-bit hex protected.
Changing the network from WEP to WPA is out of the question for me as this is under the control of my customers IT Department and they do not have any problems with their PCs connecting to the network. It appears to be an Apple issue.
For reference, my old Vaio PC, my Nokia N95 and my iPod Touch ALL connect to the same wireless network without any problems whatsoever, first time, every time!
If I boot into Windows XP from my Boot Camp partition, XP can connect wirelessly to the network without any problems, so it is not MacBook hardware related...
It has to be a bug in Mac OSX... doesn't it?!?
Things I have already tried (following suggestions on many forums):
* Switching Airport off/on
* Deleting various network-related Plist files and rebooting
* Manually assigning an IP Address (not really permitted but doesn't work anyway!)
* Disabling all network adaptors except Airport
AP Grapher shows that the MBP is connected to the wireless network, at good strength, and packets are being sent and received, but Internet Access is not possible as no IP Address has been assigned. Instead, my MBP shows a 169.* IP Address (self-assigned). It should be a 10.1.255.* address.
Can anybody please help? Thank you.

i posted this same reply elsewhere because it worked for me for my Buffalo wireless router: try manually setting your IP address instead of relying on DHCP, which sometimes (I don't know why) doesn't work well with Macs. It's a good get around. I am a happy Mac user but nothing is perfect on earth, and when the Mac gives problems, it does give a lot of frustration. Macs are not as easy to troubleshoot as Win because a Mac is built to be user friendly(and it works most of the time), meaning a lot of the background computing stuff is hidden away from users to avoid user accidentally upsetting some settings.
Unfortunately, the highly automated troubleshooting wizards provided by OS X are not perfect so when these software wizards fail to resolve the problem, like my Network Diagnostics, I have to spend more time tinkering around. There's "Terminal" of course but then most of us, especially PC converts to Macs, don't know how to use it.
You should also try updating your MBP, see if there are any new updates being released.

WRT610N : laptops cannot connect to 5 Ghz wireless network !

Hello,
I have a Linksys WRT610N (hardware v1) router, and i configured the wireless settings for the 5 Ghz and the 2.4 Ghz
wireless network, but the problem is that my laptops (wifi n compatible) only detect the 2.4 Ghz network, but NOT the
5 Ghz network. I have no clue what the problem might be :-(
These are my configurations :
Settings for wireless network (5 Ghz) :
network mode : only wireless-n
network name (SSID) : WRT610WiFi-N
channel width : auto (20 or 40 Mhz)
wide channel : auto (DFS)
standard channel : auto (DFS)
SSID broadcast : enabled
Settings for wireless network (2.4 Ghz) :
network mode : only wireless-g
network name (SSID) : WRT610WiFi-G
channel width : only 20 Mhz
wide channel : auto
standard channel : auto
SSID broadcast : enabled
Security Mode on both is "WPA2-personal", and encryption is "WPA-TKIP or WPA2-AES"
But my laptops only see the WRT610WiFi-G, and not the other one :-(
I am somewhat disappointed currently, as you can understand, but hopefully someone here can
provide me with a solution for this problem...
best regards,
Chris.
Solved!
Go to Solution.

Correct. Should be a/b/g/n

Yoga 13 Wireless network authentica​tion problem

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