I will say it one more time, you MUST be in line an hour and a half before the park opens. For the 8AM opening, we were up by 5:30AM, ate a QUICK breakfast in our hotel and made it to the park by 6:30AM. It sucked. But we thanked God we made it on time.
In Japan, its customary for those waiting in line to bring a towel or blanket and sit on the ground and wait patiently. Be nice, don’t complain and take a seat. And yes, the park has WiFi.
Unlike the US parks, Tokyo Disneyland does not open early. Whereas in the US we are allowed to walk down Main Street, USA thirty or so minutes before official park opening, no one is allowed in the Tokyo park until right at 8AM. And I mean not a second before.