[BlueOnyx:21542] problem connection with BO box - stoppin iptables helped for 5 minutes

[PESJA A & A]

Hi All,
 
Since today I have a strange problem with one of my BO 5209R boxes. 
 
Suddenly I couldn't connect to it and all websites on it where unreachable. When I logged in the console I could ping outside the network, so that worked.
When I stopped IPTables the controlpanel was reachable again and also all the websites where.
 
But that worked for about 5 minutes than again no connection.
 
I really do not know what is going on.
 
Can anyone help me out?
 
Kind regards,
 
PESJA
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