hey i have a pc and it has internet but when i try to conect it with my iphone lightroom say that my pc doesnt have internet what should i do ?
How do you mean that you are connecting it with your iPhone? This is not something you need to do for LR mobile.
In LR Mobile, when you import photos into the app, they are synced through Adobe's Creative Cloud. When you open LR CC on your desktop, and sign in using the same Adobe ID as on the phone, the photos will sync down to the desktop automatically. There is no need to connect the phone to the PC.