Every time I use Miiverse, after I browse different posts, my Wii U freezes and has to be unplugged. This has happened at least 20 times. It seems completely random, but the longer I stay on Miiverse, the higher the chance that it will freeze. It usually happens when I'm reading posts, but there doesn't seem to be a similarity because it happens with all different posts by all different users. Sometimes it takes 2 minutes to happen, sometimes 10 minutes. Either way, this makes using Miiverse a very bad experience as every time I do I have to unplug my frozen console. I haven't had any freezes in games or any other apps, just Miiverse. It is not a fluke thing either, because I know with certainty if I go on start Miiverse right now that it will freeze after a few minutes.
What's the problem here?