IDk all I can think of is this...
I first setup an internet connect and it started to download the recent update ( my wii u hasn't been connected to isp in long time)
but before it could finish I changed the DNS. so it stopped the update ( thankfully it did or else maybe it wouldnt have happened like it did)
when I recently unblocked the MAC it must have gave internet access and it tried contacting the update servers or just looked like it. it could've just been a glitch since the average user isn't going to try blocking updates and if an update was in progress and it keeps trying to contact those servers but cant it may result in what I was experiencing .
so what I think is it had that corrupt download file in memory that it would always try to grab and continue to download which it couldn't
possibly since I had a partial update going/corrupt it made it look like DNS/url blocking wasnt working.
as of now I have MAc unblocked... I can reset my WiiU multiple times run the exploit page and run update deleter etc... it never asks me to update and also it doesnt say some files failed to download there is nothing trying to be downloaded now.
So hopefully it was all just a glitch or something and infact the DNs/URL filter is actually working...
Idk why it would say the system is about to be updated and the only option was to hit "ok" but by powering off my system I bypassed it and i was still able to access the WiiU menu. which if there was an update being forced a hard reset shouldnt stop it. or maybe it would IDk how this system works. lol
Well all I care is that im still on 5.3.2U with kernel access and my localhost is working like it should with MAC UNblocked if it changes Ill be sure to post haha.
thanks again everyone