topic Re: No valid certificates available for authentication in DevNet Sandbox

No valid certificates available for authentication

arun.srinivasan3 — Tue, 04 Jun 2019 09:32:30 GMT

Hi,

I am using AnyConnect VPN 3.1.09013 installed on Windows 10 Enterprise. When I try to connect to a DevNet sandbox

devnetsandboxlabs.cisco.com/rave24, I am getting error that "Connection attempt has failed". With error as "No valid certificates available for authentication" in the message history.

Any help is much appreciated.

Thank you

Re: No valid certificates available for authentication

jacoadam — Fri, 18 Aug 2017 15:07:14 GMT

Hello Arun,

This first thing I'd recommend doing is downloading a newer version of AnyConnect. The version we recommend for the Sandbox can be found here: https://developer.cisco.com/site/devnet/sandbox/anyconnect/

Also, please ensure in your preferences that the "Block connections to untrusted servers" is unchecked so you can connect to the sandbox.

This can be adjusted by clicking the "gear" on the AnyConnect window, and navigating to the "Preferences" tab.

Please let me know if this works out, and if you've got any other questions!

Thanks!
Jacob

Re: No valid certificates available for authentication

arun.srinivasan3 — Tue, 22 Aug 2017 11:14:36 GMT

Thanks Jacob. Looks like the issue was due to my Laptop behind corporate network. When I tried from home network, I was able to access.

Thank you for your support.

Re: No valid certificates available for authentication

jacoadam — Mon, 28 Aug 2017 13:59:20 GMT

Hello Arun,

Awesome, I'm glad you were able to sort this out! Please let us know if you've got any questions!

Thanks!

Jacob

Re: No valid certificates available for authentication

admin11111 — Sat, 23 Sep 2017 05:44:50 GMT

Hello Jacob,

I'm getting same error on Mac OS with client version above 3.X and 4.x series as well. Cisco Anyconnect says no "No valid certificates available for authentication" on Mac OS X Yosemite onward. Do you have any solution for this?

Regards

Ash

Re: No valid certificates available for authentication

jacoadam — Mon, 25 Sep 2017 19:17:32 GMT

Hello Ash,

Can you download and installed the exact version of anyconnect from here? https://developer.cisco.com/site/devnet/sandbox/anyconnect/

Also, could you please let me know the exact version of OS X you're using to help us narrow down your issue?

Thanks!
Jacob

Re: No valid certificates available for authentication

admin11111 — Sun, 18 Mar 2018 20:44:36 GMT

Hi .

I had similar issue. I fixed it

Re: No valid certificates available for authentication

admin11111 — Sat, 28 Apr 2018 06:19:03 GMT

somebody please share resolution.

Re: No valid certificates available for authentication

admin11111 — Wed, 02 May 2018 17:38:26 GMT

How?

Re: No valid certificates available for authentication

admin11111 — Wed, 09 May 2018 05:59:12 GMT

Thank you so much! It works

Re: No valid certificates available for authentication

admin11111 — Wed, 09 May 2018 22:49:59 GMT

How did you fix it? I have the issue.

Re: No valid certificates available for authentication

admin11111 — Fri, 11 May 2018 19:06:32 GMT

I am using ubuntu 18.04 I am getting error certification velidation failure. Anyone can help here.

Re: No valid certificates available for authentication

admin11111 — Wed, 23 May 2018 20:23:50 GMT

Got Anyconnect v4.3.05017 on Windows 10 Enterprise.

The error certif. validation failure in my case was due to the TLS v1.0 disabled.

To enable: go to regedit

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\Schannel\Protocols\

TLS 1.0 > Client > Enabled > Value Data = 1

Re: No valid certificates available for authentication

BelnickCisco — Sun, 03 Feb 2019 18:43:16 GMT

This was the fix for me:

Control Panel | Administrative Tools | Local Security Policy.

Under Local Security Settings, | Local Policies | Security Options.

Enable the policy -> System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing