I installed Power Converter 3 in my forge server. Sometimes the EU producer went wrong. It doesn't output any energy. And the server console output a warning : "[Server thread/WARN] [IC2.EnergyNet]: EnergyNet.addTileEntity: covers1624.powerconverters.tile.ic2.TileEntityIndustrialCraftProducer@449243f5 (covers1624.powerconverters.tile.ic2.TileEntityIndustrialCraftProducer@449243f5) is still conflicting with covers1624.powerconverters.tile.ic2.TileEntityIndustrialCraftProducer@16c193e9 using the same position (overlapping), aborting " I have to restrat server to fix this. I had searched it on google. I think it's related to chunk load. But you said you had fix it on 2.11 version. What's more, in single player it works well.
The IC2 cable seems to regard the air as a energy source.
http://i.imgur.com/D3p7ACs.png
This is my server fml log and client fml log.
whc.zip
Thanks in advance.

I have exactly same problem

it looks like problem with chunk loading, when chunk is loaded with some loader, it works 100%

if chunk is unloaded, it breaks very often

I dont think this will be fixed in such a old mc version

Yeah, there may be things happening with this mod in private, but it wont be the same.