My PC is isolated from my company’s network

I am new person in my company. The company does not have IP document.

My company’s IP is range from 192.168.0.1 ~ 192.168.0.20, but my pc’s IP is 192.168.0.105.

I type ping 192.168.0.105 from any other PC, the connection is failed always

Did you how to fix the connection problem? Do I have change the IP of 192.168.0.105?

Thanks for your help.