About monaca localkit

I set up the settings for local development in Monaca.
I installed the local kit by referring to the information in this URL (http://docs.monaca.mobi/cur/ja/manual/localkit/monaca_localkit_index/), but the iPhone on the same wireless NW is not recognized by the local development PC.
Also, I can't recognize the local development PC from iPhone.Even if you type the IP address directly and specify port 8000, the error message 未定Undefined local computer 。 appears.

I have already confirmed that the 8000 port of the PC is empty by ping communication from PC to iPhone.
Could you please let me know if there is anything else I need to set up?

Thank you for your cooperation.