We have a client that is connecting to our office via home network (VPN - Microsoft RRAS - 2003 Std SP2). Sometimes the client gets connected just fine. More often than not though, the VPN connects, registers, hands off IP, subnet, DNS, etc., but nothing works. Can't ping via name, IP, nothing. It seems that the connection is sending packets just fine, but not receiving any responses. Here's the home office setup:
3 Windows XP Pro SP2 workstations
Connected via Linksys Gigabit switch (24 port) to
D-Link DIR-655 Router - SIP Firewall, ALG Config available (PPTP and IPSEC - turned on and off no change)
Comcast 6MB cable internet
Windows 2003 SP2 Std. Edition running RRAS
Other clients connecting and working just fine.
Cisco PIX 505