No one can help you if you don't specify, at least, the version of Mibew you are using.
Sorry if my question is not clear enough, its Mibew Messenger 1.6.12
This error message comes when i'm using connection IP 112.78.135.186 , but it works fine when I'm connected to another IP, but the problem is that im using mibew for our students, and all students use the same IP public 112.78.135.186.
Now no one can access the chat, after they fill in the form and this error message "number of connections from your IP is exceeded, try again later" we get.
I assume there is in the script which limit the IP connection value or something.
thanks