Emulator

If it works in r6100, figure out which revision broke it.
I don't see any changes after r6100 that would cause it not to work.

Also, which plugins have the issue?

I tried with both... Try it, use real wiimote with motion plus.

I have no motion plus games, you didn't answer all of my questions ;).

Sorry :) I try a couple builds later than 6122, and I only get work with 6089 (sorry, litle mistake... I try 6100 and same problem). If you have wiimotion plus you have the game sport resort, right? Come in a bundle! Try get a wiiremote with motion plus... This emulator rocks... I can use 6089. no problem at all, but I want just give a litle help to the comunit.

WMPs are available without the bundle as well, you know ;)
Anyway as he said, try to narrow down the issue to the exact revision which broke stuff, please. There are archived builds on www.dolphin-emulator.com.

I never had that issue...if there is any, it's new...but I somehow doubt it...

I try out lastest build and I sill with the problem here... Sport Resort desconnetc wiimotion... Strange, if I choose emulated controller, and check "motion plus" the problem still. Can be my game?

I can confirm this problem also to r6170.

Disabling Dual Core option I have any problem. The problem is the use of Dual Core!!!

it's not because of dual core. Its a bug in dolphin. You can correct it by going to the wiimote setting while the game is in action and the uncheck the motion plus part then ok. then again go to the wiimote settings and check the motion plus settings and press ok. do this until the recalibration screen appears.

I can't understad what you mean... I use real wiimote + wimotion plus.

With a real wiimote and dual core option on, I haven't problems; with option on I have the problem. Always with Wii Sport Resort. r6120.

while u are runing the game in the main window of dolphin. if u get the message from the game that the motion plus is disconnected do the following while the game is running with the wii motion plus disconnected message.
the instructions i gave before.

Issue 3678 has been merged into this issue.

I have this problem only with Red Steel 2 (and ONLY with DUAL CORE activated), not with Wii Sports Resort or Grand Slam Tennis.

Maybe this problem in Wii Sports Resort was caused by the old plugin, with the new one from my testing (until now) I have experienced that only Red Steel 2 has some disconnection problems in the game-menu, but you can always reconnect the Wiimote using ALT+F5...