This is very perplexing. I agree that it is not a routing issue. It is weird that PC/laptops not in the domain do not have this issue. (not that I am aware) I have tested several including my own home PC and they work as expected.
we have 3 remote sites that are connected by routers. But all clients VPN in to the corp site.
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...
Table of Contents 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 an...