Internet does not work. The problem of the network adapter

Internet stopped working, it writes that the problem of network adapter, hamachi adapter problem and everything like that, in general can not connect to the network, and go into the router settings too, can I ask if there is a possibility to fix the Internet manually and by myself and if so, how? Or is it necessary to call a wizard?

Answer:

Good afternoon. Very little information on the problem. You should have described it in more detail.

Write in the comments:

Do you have a laptop, or a PC? What Windows?
Do you connect the Internet via cable or wi-fi?
Do other devices work from this router? By cable, including.
Internet used to work, after which the error “network adapter problem” appeared. It appears, I understand, during diagnostics? If you can, attach a screenshot of the error.
Well and describe the connection process itself, at what stage the problem appears and what exactly.

When I know this information, I will try to advise you something.