error 721 trying to access 2003 vpn

error 721 trying to access 2003 vpn.  works when i use static ip, but when i use a dynamic ip i get the 721 error.  i have a sonicwall firewall.
mccormisAsked:
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gjohnson99Commented:
What do you mean  on the server or the client?
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mccormisAuthor Commented:
sorry... the server always has a static ip.  when i used different IP types for the client is where the problem arises and the error shows up.  nothing happens on the server end.
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gjohnson99Commented:
when do you get the dynamic ip addrees from ?    Are static and dynamic from the same subnet?
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mccormisAuthor Commented:
well the dynamic ip comes from different isp's.  For example i have a user that goes home and uses sbc.   The static ip is not on the same subnet.  I'm assuming the dynamic is not either.
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gjohnson99Commented:
I am not under stading yet.

What ip is Vpn handing out ?  
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mccormisAuthor Commented:
sorry i am not familiar with setting up vpns.  

I'm not sure what IP the vpn is handing out.  the only thing that changes is that a user can use a static ip given by an internet provider and they can access the vpn.  if the user is at home using a dsl connection with a dynamic ip the vpn gives that error.  

is there a specific place i can check the ip the vpn is giving?  
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gjohnson99Commented:
ok think i under stand now .

The site with dynamic ip don't  work ?

the site with static ip do work ?
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mccormisAuthor Commented:
correct.. funny how you make it simple.
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