As someone who was just gifted a Wii U on 5.4 and zero possibility of returning it to hunt for something lower, is there any reason to stay on 5.4 rather than updating to 5.5 so that I can take my new console owner trip to the eShop and get it over with?
Also, if I took the steps to set up TubeHax from the OP (my cheapo router doesn't allow for domain blocking) and I'm still getting the "Non-authoritative answer" return from kloth's lookup, any ideas as to what I might be doing wrong? I've checked and double-checked my connection settings to ensure that auto-obtain DNS is disabled and that the primary is 107.211.140.065 and the secondary zeroed out, yet still I get the above return when testing.
I do see an icon with a red 'X' showing in the lower-right corner however, stating "Update failed", so perhaps something is working somewhere.
If no one has any ideas, I'm going to try the CCProxy method someone linked a few posts back and see if that goes any better. Figured I would at least try to figure TubeHax out first since it sounds to be what everyone swears by at the moment.
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That's what I've heard as well, and can confirm that the Smash Splat bundle I was gifted did indeed come with 5.4.0 out of the box.