I had some problems with Wiimc over wifi each time I change my wireless router. But its more like tune up the router than a problem of the software.
I changed my router 3 times already and learned some tricks that maybe could help other people.
1 – Try to use AES encrypt, from my tests that increase the stability on wifi connection between pc and wii (avoid using mixed modes or multiple encrypt methods if you can)
2 – Try not using mixed modes for wifi speed, set default 802.11g or b, don’t even try to use n
3 – Disable the energy power saving from wifi card or usb lan adapter, for the usb adapter need to disable the power saving on usb ports also from device manager tree.
4 – Disable dhcp on wii and set a static ip
5 – Disable any QoS or Enhance Multimidia function on wireless router, that cause more trouble than advantages
6 – On Windows 7 or Vista (don’t remember if on XP its the same) use cryptografy 40 or 56 on network share central
Well, these procedures helped me every time I needed to tune a new router to work with Wiimc or Mplayer-CE, try one by one and I promess that will increase the stability of you connection between wii and pc. For me, I can say my wifi connection is very stable, maybe a freeze each 30 hours of videos, and some of these freezes mostly are caused by bad media file. I’m using cache 20% btw on Wiimc
*Sorry for my english*
