Hi, I am new to the forum, so hopefully I am posting this question in the correct spot. I just received three of these tablets from China. Two of them seem to be working good. The third one will start up, but will not stay connected via WIFI. The other two have no issues in that area. The WIFI will connect, but then after about 5-10 second it goes out and disconnects. I don't want to have to ship it back. Is there something simple that I should be checking? I checked all of the settings and everything looks good. I even downloaded an App that keep the WIFI locked on. I hooked the tablet up through ethernet and it worked fine.