Well on JP2 the latest update kind of broke it for me, you could try the fix mentioned by @nas that I got for fixing the dns problem (firefox returned a domain name not resolvable problem) or the magic command provided by @ liiooo 5.2.0.18 AAS no longer online when not in wifi - #9 by liiooo for when internet was not available on cellular data and a ping is not working at all (devel-su ping 8.8.8.8, if google is down well no luck I guess).