Every time I try to watch a video on the Nintendo channel at around 4 seconds in, the videos start buffer and stuttering to the point of it being unwatchable. The videos also take around 20 minutes to load. This only started happening a little bit after WiiLink merged with Riiconect24. I have looked all over the internet since then and never found a solution. I also did change the wifi on my Wii a few times but this didn’t change anything, Any help would be greatly appreciated. Thanks! 
I have the same problem too