The administrator for the network you want to "join" should be providing you with what information they need and how to establish the password.  As different networks can require different things, there's no way for us to know what that network wants.

HI

I am having a similar problem. Can some one share mote data on the posible solution?

Please feel free to email me:   

Thanks

Suri

<Admin Note:Email removed per privacy policy>

I have experienced this with so many Dell laptops both in our office and out in the field.  The only solution we have found is to let Windows manage your wireless connection and turn off  Intel-Pro wireless management (remove IMO). We will never give out our device ownership password to our Wi-Fi clients.

I am not sure if this is the correct fix but on 8 individual laptops it works and so far has been the only option that has.

Hope this helps.

I haven't tried this myself yet, but according to this page http://www.experts-exchange.com/Hardware/Networking_Hardware/Wireless/Q_24134863.html the solution is to tweak the Intel wireless software in Add/Remove Programs so that "Unmarked Wifi Protected Setup" is selected.

Have to say that this is really a ridiculous problem to have. How Intel think that an administrator is ever going to give out his password to a user just to connect to WAN? Bizarre.

It would be nice if you had posted a link to a free site. When you say that Wifi protected Setupo should be unmarked, do you mean uninstalled or installed. Because if not installed is has a red X trhoguh it, but if installed there is no X. I am having the same issue, but Wifi protected setup is installed by deault with the Intel Proset driver. I feel the problem is with Intel writing faulty and buggy drivers, and that teh Proset utlity should be disabled, as th eonly thing Intel does well are processors.

If you go to Control Panel, select "Remove/Change" on the Intel wireless, then select "Modify" and "Next" you'll then have access to the installed settings.  From here,  uninstall/unselect "Single Sing On" and WiFi Protection.  These will turn off the prompt.

Hope it works for you.

Your solution fixed my problem... THANKS!  -  With my inspiron E1505 it's hard to believe the Intel ProWireless driver installs with Wifi Protected Setup on/configured in a way that causes the "Checksum validation failed for the PIN entered" error when trying to enter the router password.  Unmarking and removing the components easily fixed the issue.  Most of the answers when I googled searched for a solution said to give up on the Pro wireless card and go with the default Intel. Surprisingly it seem this is the only post on the dell forum with the answer.  Thanks Again!

Actually the process is like this: in order to join an existing wireless network, you shall first set up a profile and configure it in the Intel? PROSet/Wireless WiFi Connection Utility.

Steps as below:
1) click "Profiles..." -> click "Add..." to create WiFi Profile.
2) input a name as you like in the "Profile Name" box.
3) input the wireless network name(eg. SSID). click "Next..."
4) input the password of the network to finish configuring.
5) Click "Connect..." and it's DONE!!

Most importantly, this way, you won't need to go through the annoying device ownership password thing. Isn't it fantastic? Somehow, it does confuse people about connecting in WiFi... What on earth is the designer thinking of...

Thanks, I had forgotten all about setting up the profile but I guess that's the purpose: set it up once and forget it. At least until you need to set up another one.

Thanks
Marichele

Thank you so much!