Networks, network rules and filter rules set up to allow all traffic betwen these two sites.
Hosts on remote VPN site are: 192.168.1.1, 192.168.1.2, 192.168.1.3, 192.168.1.5
The PPTP Site-to-Site VPN connection establishes correctly and I can ping/access files, telnet, & connect in any way to all of these hosts from my workstation (192.168.3.48) and any other workstation on my LAN - "EXCEPT TO 192.168.1.5."
From the console of the ISA server (192.168.3.25), I "CAN" ping & access that host.
The connection attempts from my workstation to 192.168.1.5 show as "initiated connection to", but they never complete and never show as being denied.
I looked at routing tables on the ISA server, my workstation, and the remote host and all looks correct. Also, there is no firewall software on the remote host.
So why can't I ping/access this one host when I can access anything else on that remote site?