Try a current development build of Dolphin. The 20100 error means that the Wii's MAC address (or some ID that's generated from it) is banned from WFC, and up until recently Dolphin's been using the same one by default that's been banned. Current builds pick a random MAC address that shouldn't be banned. https://dolphin-emu.org/download/
<@skid_au> fishing resort is still broken: http://i.imgur.com/dvPiQKg.png
<@neobrain> dafuq
<+JMC47> no dude, you're just holding the postcard upside down
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<@Lioncash> pauldachz in charge of shitposting :^)
<@neobrain> dafuq
<+JMC47> no dude, you're just holding the postcard upside down
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<@Lioncash> pauldachz in charge of shitposting :^)