If your are using SafeNet SoftRemoteLT Version 10.8.4 please read this points:
As you know Ipsec works in two modes: site to site mode (lan to lan) and mobile mode (mobile to lan). Clients like Safenet works to mobile mode.
In mode site to site no client software is needed because exist a monowall in each side.
http://doc.m0n0.ch/handbook/ipsec.htmlRegular version of Safenet SoftRemoteLT works under WinXP, if you are using Windows Vista or 7, please see the respective client version.
If you are using mobile mode, disable lan to lan mode.
If client side Ip family is same of remote lan Ip family, please prefer change to different family.
Disable any other PPTP rule.
Finally, since Windows XP SP2, Windows firewall close port to sharing over subnetworks. Then, go Control Panel/Firewall and customize sharing files/printer preferences and take permit all networks or define specific remote lan family.