I have the problem with the wireless connection from tablet ifive mini 3gs to mikrotik 951Ui-2HnD. The tablet is connected and a normal working some time - about 15 minutes. After that despite the established connection stops to transmit data. Off/on the wireless network on the tablet helps for some times. Other devices work fine.
The tablets name is quite suspect.do other devices disconnect too?
Is it tablet based on mtk6592 http://www.ifive.com.cn/product/pc/3-1-13.html
Other devices not disconnected 
. With routers from another manufacturer, for example, tp-link, this tablet works fine. Perhaps some individual intolerance 