In this video the steps that should be taken to establish Site to Site VPN between two Cisco routers are explained. Two PCs are used to test the end to end connectivity using ESXi on a dell Power Edge 2950 each on a different VLAN, connecting to two 2621xm to emulate a HQ and Branch scenario
Cisco VPN problems happen in Win10 and in Win8.1 -- Fixing them should be easy so do these three steps in order:
(a) Re-install the Cisco software to make sure you are running latest version.
(b) Set the program to Compatibility mode for WIN7 (or WIN8) - in 90% of problems THIS FIXES THE VPN FAILURE :)
...if that doesnt work then try this (c) Use REGEDIT to modify HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionInternet Settings and add a new key of GlobalUserOffline with a value of '1'
This Video describe how to configure SSL WebVPN & Anyconnect VPN client on Cisco Router, I've used GNS3 to simulate the topology so i was forced to use the ios 12.4 but all configuration shown on this video are also valid for ios 15.X , the only different is that ios 15 require license activation for the Webvpn service.
Meraki Teleworker VPN makes it easy to extend the corporate LAN to remote sites, without requiring all clients and devices to have client VPN software. Workers in small branches, home offices or on the road can securely connect to the corporate email server, file shares and central PBX as if at headquarters, while still being able to access local resources such as printers and share drives.