Hello, sorry for idiotic question however maybe someone with a vray license was changed computer ? as now i bought new computer download free\bussiness license from chaos group dowload list vray. tried to install however the vray tools not appearing, i dont know the link where to check my license files where to download them 
besides forgot to mention that from vray download i did not find vray “next” only vray for maya
Please mind that V-Ray uses the license server:
1. Make sure when installing V-Ray to install also the Online license server. It can be downloaded from Download | My Chaos
2. Navigate in your browser to http://localhost:30304
3. Log in with your username - Chaos Licensing
4. Start Maya and try to render
V-Ray Next for Maya is available here - Download | My Chaos