Windows 2008 server with PPTP with radius ping 1 succ and other fails from outside

Hi team. i have a question i have 3 server with pptp with radius (VPN) i can access from outside from my windows 7 and access correct. BUT

when i do a ping to the VPN server i have succefully results in all pings
but when i try to do a ping to the antother server in the lan of (server) they show me only 1 ping succefully and the others TIMEOUT.
the same if i connect a windows 7 or anything in this LAN from outside only respnd 1 succefuly ping.
All firewalls are off

any ideas???
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

pietritoAuthor Commented:
any ideas?¿?

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.