After installing Windows 8 RTM, I tried to setup a VPN connection as usual. On Windows 7 it was really trivial, it didn’t ask anything beside the VPN server address and the login credentials. However on Winodws 8 I got the following error message:
Error 942:
The connection could not be established because the authentication method used by your connection profile is not permitted for use by an access policy configured on the RAS/VPN server. Specifically, this could be due to configuration differences between the authentication method selected on the RAS/VPN server and the access policy configured for it.
You can find the problem on the Security tab of the VPN connection Properties window. By default none of the Authentication radio button are selected:
The solution: explicitly select an authentication method. Thank God, it doesn’t work without it 
I learned it. I share it. 
From a UI perspective this was a very poor choice by Microsoft. A radio button is supposed to have at least one option defaulted. A radio button by definition is a mutually expclusive option. Meaning one or the the other not none or the other. Once you have selected an option there is no way to go back to none selected.
I couldn’t agree more. I just cannot understand why they touched this dialog, it worked beautifully in the previous release.
Pingback: WOWZAPP preparation materials « Codes from the field
Pingback: Windows 8 – VPN Getting Error 942 « Eufuckingreka
Thank you for posting this! Fixed my connection issue right away. I appreciate it.
Good to hear that, thanks for the feedback, Vicky!
Good article, learning, collectors!
Thank you! I was posied for a lenghty troubleshooting session when I tried to get our forst Win8 on our SBS2003. Thanks for posting!
Pingback: WIndows 8, VPN, Error 942 « Robb Sadler's Weblog
Pingback: Windows 8 VPN error 942 « Linux T&T
Thank You, your solution worked for me, I faced this issue only in Windows 8…
Thank you for posting this information!
Thank you for this clear fix; skimmed hours off a job I was beginning to worry might take all day.
Awesome. Easy fix, worked right away. Thank you.
saved my first work from home day with my new laptop! thanks so much, windows 8 vpn error 942 was a pain!
Weeks without VPN until today ¡Thank you!.
Thank you so much!
Perfectly works, thanks!
Good article. Thanks for the help!
Thank you for this!
This worked – Windows 8.1 – Control Panel -> Network and Internet ->Network and Sharing Center-> Right click on “your” VPN and do the above.
8.1, If you cant see your errant VPN connection, select “Change adapter Settings” and then it will become visible to right click on.
Wow! It’s been nearly a year of frustrating searches, but your post was right on the money! Thanks so much.
Does not appear the Properties option, only clear cached credentials … what can I do?
thank you so much..