PPTP unable to ping/browse some host

RouterOS General
3

  1. Install 6.11 on both side and upgrade the bios AFTER install 6.11:
    http://www.mikrotik.com/download/share/routeros-mipsbe-6.11.npk
    [thanks Normis for the link (http://forum.mikrotik.com/t/ipsec-ios-doesnt-work/75174/17)]

  2. set on both side authenication to mscahp1 & mscahp2 only, MTU & MRU to 1450, MRRU to 1614, and on the profile used change-tcp-mss to yes

  3. retry.

If fail:
4) Place both “/export compact” command result on forum (read the export and filter sensitive data first!)