what you means that?
i just normal refresh the database like everytime you reopen your VB, the connection of database sure lost so i did click the refresh button to make the sure connection is okay.
Now my database is work fine with my desktop, this problem is come out from my laptop, what the problem? i am afraid when i present my project will occur this problem again because of using laptop to present.
i able to connect from some cafe that are wifi available. Once i go to my friend house (wifi available also) i connected to the wifi because before i go to show my project to my friends, i go listen some music from youtube. :x
So if you are able to connect most of the time, that indicates that your configuration is correct.
However, you have to keep in mind that wifi connectivity depends on more than traditional wired access. This issue you are having is not SQL, but a network problem. When you get this error, troubleshoot it as a network related problem.