I've been have trouble opening the eShop and Miiverse for some times now. At least 1 time out of 3, the eShop/Miiverse will be stuck on the loading phase for 1+ minute, and then I'll get a popup with an error message.
I searched on Nintendo's website, and the error is about having trouble connecting to the Nintendo Account, or something similar.
My connection is fine, and every other internet feature is working flawlessly (Netflix, browser, etc.).
I tried setting a static IP, no change.
It really looks like a problem on Nintendo's end, but am I the only one with that problem?! I don't remember this happening until a couple months ago (with the update? I'm not sure...)