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You could allow the connection with the 'change settings' button, this will remove the red error, but will keep asking you to connect, since the certificate you used can not be trusted. I'm assuming you are using a self signed certificate? If so, you can import the certificate on your client system. Another option is to use a certificate issued by an official certification authority.
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I was able to get an updated AnyConnect that worked with Win 10. I also found a registry hack that permits Cisco IPSec client to work with Windows 10. <a href="http://itthatshouldjustwork.blogspot.com/2015/07/cisco-64-bit-vpn-client-on-windows-10.html" rel="ugc">http://itthatshouldjustwork.blogspot.com/2015/07/cisco-64-bit-vpn-client-on-windows-10.html</a>
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I've just started working with Cisco AnyConnect VPN client. It's giving me an error that AnyConnect cannot verify server foo.ya. See the attached screen grab. What must I add at the ASA and/or at the client machine so that we don't see this error? Thank you.<br />
<a href="https://filedb.experts-exchange.com/incoming/2016/02_w08/1081973/CertStopper.PNG" target="_blank" class="file-inline" title="Warning on connection (32 KB)"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M67.508 468.467c-58.005-58.013-58.016-151.92 0-209.943l225.011-225.04c44.643-44.645 117.279-44.645 161.92 0 44.743 44.749 44.753 117.186 0 161.944l-189.465 189.49c-31.41 31.413-82.518 31.412-113.926.001-31.479-31.482-31.49-82.453 0-113.944L311.51 110.491c4.687-4.687 12.286-4.687 16.972 0l16.967 16.971c4.685 4.686 4.685 12.283 0 16.969L184.983 304.917c-12.724 12.724-12.73 33.328 0 46.058 12.696 12.697 33.356 12.699 46.054-.001l189.465-189.489c25.987-25.989 25.994-68.06.001-94.056-25.931-25.934-68.119-25.932-94.049 0l-225.01 225.039c-39.249 39.252-39.258 102.795-.001 142.057 39.285 39.29 102.885 39.287 142.162-.028A739446.174 739446.174 0 0 1 439.497 238.49c4.686-4.687 12.282-4.684 16.969.004l16.967 16.971c4.685 4.686 4.689 12.279.004 16.965a755654.128 755654.128 0 0 0-195.881 195.996c-58.034 58.092-152.004 58.093-210.048.041z"/></svg>CertStopper.PNG</a>
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CertStopper.PNG

I've just started working with Cisco AnyConnect VPN client. It's giving me an error that AnyConnect cannot verify server foo.ya. See the attached screen grab. What must I add at the ASA and/or at the client machine so that we don't see this error? Thank you.

You could allow the connection with the &amp;#39;change settings&amp;#39; button, this will remove the red error, but will keep asking you to connect, since the certificate you used can not be trusted. I&amp;#39;m assuming you are using a self signed certificate? If so, you can import the certificate on your client system. Another option is to use a certificate issued by an official certification authority.

I was able to get an updated AnyConnect that worked with Win 10. I also found a registry hack that permits Cisco IPSec client to work with Windows 10. http://itthatshouldjustwork.blogspot.com/2015/07/cisco-64-bit-vpn-client-on-windows-10.html

Cisco AnyConnect Client Giving a Warning

I&amp;#39;ve just started working with Cisco AnyConnect VPN client. It&amp;#39;s giving me an error that AnyConnect cannot verify server foo.ya. See the attached screen grab. What must I add at the ASA and/or at the client machine so that we don&amp;#39;t see this error? Thank you.

A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or travelling users access to a central organizational network securely. VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cisco

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.