Cisco VPN :: Getting QuickVPN Connection On WRVS4400N?

Hardware: WRVS4400N on Firmware version: V2.0.2.1-ETSI
Quick VPN Version 1.4.2.1 on Windows7 Ultimate 64bit.
QuickVPN Client stopps with: Verifying Network.... and "The remote gateway is not responding. Do you want to wait? Yes / No"
 
 Here we go with the log:

2011/10/24 09:09:06 [STATUS]OS Version: Windows 7
2011/10/24 09:09:06 [STATUS]Windows Firewall Domain Profile Settings: OFF
2011/10/24 09:09:06 [STATUS]Windows Firewall Private Profile Settings: OFF
2011/10/24 09:09:06 [STATUS]Windows Firewall Private Profile Settings: OFF
2011/10/24 09:09:07 [STATUS]One network interface detected with IP address 192.168.11.106

[code]....
 
Additional I can ping to dirkle.dyndns.org as well as accessing to the WRVS4400N [URL] The connection map is as following:

Client --> PPPoE DSL Router --> (...INTERNET...) --> NetvigatorGateway ---> WRVS4400N --> HomeNetwork
 
The NetvigatorGateway is locatet at my home and also distributing IP-TV. For internet it netvigator gateway is set DMZ to WRVS4400N (network 192.168.1.xxx); the WAN IP is assigned to the WRVS4400N and same as on dirkle.dyndns.org. When I connect myself into the netvigator gateway, (network 192.168.8.xxx) i can successfully establish a VPN connection with QuickVPN to the WRVS4400N.But then, what reason ever, I cannot access to 192.168.1.xxx network devices. QuickVPN does not allow me to see the assigned IP as well. This is my issue 2: After the connection is "successfully" established, it does not feel as I am part of the home network....Issue 3 would be: In the company we use CiscoAnyConnect VPN client (Verison 2.4.0202). Is it possible in using this client instead in any later firmware revision?