What am doing is, distributing the load to different machines(Servers). machines OS is windows(Neoload controller is installed) to mac(where load generator is installed). Am getting error "WAN emulation " is not installed. Please do help me.
It seems that you are trying to start a test where you have customized WAN emulation settings.
However on MacOS X, WAN emulation using packet loss or latency is not supported.
Could you check your population settings and especially the WAN settinigs?
Look at the NeoLoad documentation here