I notice you are using DHCP on the WAN interface. I assume you have a reservation with the DHCP Server that ensures you get the same IP (188.8.131.52) every time. Are you also getting a default route from the DHCP Server? If not, please configure a static default route. With a default route confirmed remove this route "ip route 192.168.6.0 255.255.255.0 184.108.40.206" you don't need it.
On the HQ router remove this route "ip route 192.168.1.224 255.255.255.224 220.127.116.11" again you don't need it.
If after all this you still can't pass traffic please post the output of these commands from both routers...
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
[toc:faq]Introduction:This document describes details on how NAT-T
works.Background:ESP encrypts all critical information, encapsulating
the entire inner TCP/UDP datagram within an ESP header. ESP is an IP
protocol in the same sense that TCP and UDP are I...