I can't access internet from my laptop

[didogamepro1]

Hey! I have a problem with my laptop.. i can't access internet it says wifi doesn't have a valid IP adress. I am connected with wifi but i can only see "no internet and the yellow alert on the wifi icon.
It happens for 5th time and it's very annoying. The issue will probably get fixed by itself but will happen again.. how can i fix it forever?
*sorry for my bad english not my main languege*

 

[rgd1101]

other device work on the WiFi router? try Ethernet?

 

[didogamepro1]

Yeah my phone my brother's laptop and all devices this is not because of the internet the problem is in my laptop
Something like "invalid ip adress"
Then after 2-3 days i get connection again and after that same shit happens