https://community.cisco.com/t5/devnet-sandbox/anyconnect-devnet-cisco-iox-reserve-vpn-error/m-p/4509547#M6984 <P><a href="https://community.cisco.com/t5/user/viewprofilepage/user-id/1281691">@benjie</a>&nbsp;Check the port are open from your firewall . The port range will be anywhere from TCP 20100 through TCP 20354. Give that a try and you should be good to go. If that's not working, keep in mind VPNs also use TLS (TCP 443) and DTLS (UDP 443). Though typically these are open in most organizations.</P> <P>&nbsp;</P> <P>HTH</P> Sun, 28 Nov 2021 08:30:22 GMT bigevilbeard 2021-11-28T08:30:22Z https://community.cisco.com/t5/devnet-sandbox/anyconnect-devnet-cisco-iox-reserve-vpn-error/m-p/4509500#M6983 <P>Hi Everyone,</P><P>Having trouble connecting to the specified gateway after email confirmation for IOx reservation devnet sandbox. Please need help. Thank you.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="VPN_Error.png" style="width: 400px;"><img src="https://community.cisco.com/t5/image/serverpage/image-id/138108i668EE90133CEB585/image-size/medium?v=v2&amp;px=400" role="button" title="VPN_Error.png" alt="VPN_Error.png" /></span></P><P> </P><P>&nbsp;</P> Sun, 28 Nov 2021 07:13:35 GMT https://community.cisco.com/t5/devnet-sandbox/anyconnect-devnet-cisco-iox-reserve-vpn-error/m-p/4509500#M6983 benjie 2021-11-28T07:13:35Z https://community.cisco.com/t5/devnet-sandbox/anyconnect-devnet-cisco-iox-reserve-vpn-error/m-p/4509547#M6984 <P><a href="https://community.cisco.com/t5/user/viewprofilepage/user-id/1281691">@benjie</a>&nbsp;Check the port are open from your firewall . The port range will be anywhere from TCP 20100 through TCP 20354. Give that a try and you should be good to go. If that's not working, keep in mind VPNs also use TLS (TCP 443) and DTLS (UDP 443). Though typically these are open in most organizations.</P> <P>&nbsp;</P> <P>HTH</P> Sun, 28 Nov 2021 08:30:22 GMT https://community.cisco.com/t5/devnet-sandbox/anyconnect-devnet-cisco-iox-reserve-vpn-error/m-p/4509547#M6984 bigevilbeard 2021-11-28T08:30:22Z https://community.cisco.com/t5/devnet-sandbox/anyconnect-devnet-cisco-iox-reserve-vpn-error/m-p/4511035#M7009 <P>Hi bigevilbear&nbsp;<SPAN>did check firewall settings in my client pc, what i did is to reinstall anyconnect, and it works. Thank you for your suggestion.&nbsp;</SPAN></P> Wed, 01 Dec 2021 07:37:32 GMT https://community.cisco.com/t5/devnet-sandbox/anyconnect-devnet-cisco-iox-reserve-vpn-error/m-p/4511035#M7009 benjie 2021-12-01T07:37:32Z