I got some problems with my Wii when I try to get online. Check out if you can help me in any of those:

• In Mario Kart Wii, can connect into Nintendo WFC and stuff, but it takes forever to find opponents. IF it find opponents, it is just one, and it is generally lagged (aka disconnects moments after).
  
  
• Mario Kart Wii (often) randomly crashes during online matches (with that "Disc Error, eject you disc and turn power off" message)
  
  
• Can't find no one to play within Basic Brawl/team Battle/Spectate in Smash Bros. Brawl.
  
  
• Videos are really SLOW and start loading again if you change the position (aka 0:00~2:23 etc) in Nintendo Channel.
  
  
• Need to buy "Wii points"(?) to download things in Wii Shop Channel Unfunny Joke

Well, I guess that's the only issues. Please Help!