I was having this same thing happen, although I have a pretty good high speed Internet connection. However, my iPad was losing the connection especially when I was skyping or streaming media. I made an appointment at my local apple store and they had it fixed by having me do a restart. In other words, first you sync your iPad to your computer so you don't lose anything, and then do a total restart. You do this while its connected to your computer. However, DO NOT do a RESTORE BACKUP. You want the iPad to be like it was when you got it. You'll have to the sync it to get your apps back.
This worked for me. I havent lost a connection since! Hope this works for you!