The "Wi-Fi" network card does not have the correct IP configuration.

Hi!
Namely, I've been struggling with a problem for two weeks (no internet).
When I go into the network tab (this next to the time and date) it shows me that my internet, Wi-Fi connection (as I call it, I do not know) is limited.
"Troubleshooting" showed that the "Wi-Fi" gateway does not have the correct IP configuration (unresolved).
And now my questions. How to solve this problem? What could have caused him? I looked at other topics, but none of them helped me yet.
I will add that when I enter: Network and sharing center -> Network connections -> Wi-Fi, in the "general" tab there are various information, including:
IPv4 connections: No network access
IPv6 connections: No network access
And when I enter: Properties -> Internet protocol version 6 (TCP / IPv6) or Internet protocol version 4 (TCP /) -> Properties, it is set to obtain an IPv6 / IPv4 address automatically, but there is no address entered underneath IP, subnet subnet length, default gateway etc. only empty gaps. Should I do all this manually?
This lack of internet really pains me, I count on your help. If you have any questions, please write. Greetings!

Anyone_ wrote:

And now my questions. How to solve this problem? What could have caused him?

First of all, start with the description of the network you want to connect to and determine whether you enter the correct password. Other devices on the same network are working properly?
Is the problem in one network or in all?

Anyone_ wrote:

And when I enter: Properties -> Internet protocol version 6 (TCP / IPv6) or Internet protocol version 4 (TCP /) -> Properties, it is set to obtain an IPv6 / IPv4 address automatically, but there is no address entered underneath IP, subnet subnet length, default gateway etc. only empty gaps.

If you are getting an address automatically (DHCP) then the fields described should fill in themselves once you have a Wi-Fi connection.

Anyone_ wrote:

Should I do all this manually?

You can disable automatic downloads and enter manually using adsees outside the DHCP pool.

Anyone_ wrote:

If you have any questions, please write.

The connection via the wired network (RJ45) card works?

jdubowski wrote:

First of all, start with the description of the network you want to connect to and determine whether you enter the correct password. Other devices on the same network are working properly?
Is the problem in one network or in all?

Other devices in this network are working properly, all of them. The type of network to which you want to connect is (according to the control panel) an unidentified, public network. The problem occurs in all networks. I tried at the beginning of simple methods such as: completely turning off the router, connecting the router to the laptop, restoring drivers, updating, etc. When connecting the router to the laptop "Solving problems detected the same problem, but instead of Wi-Fi wrote about Ethernet. .

jdubowski wrote:

If you are getting an address automatically (DHCP) then the fields described should fill in themselves once you have a Wi-Fi connection.

Yes, it's automatic. Is it normal that when I do not have an internet connection, the fields are empty?

jdubowski wrote:

You can disable automatic downloads and enter manually using adsees outside the DHCP pool.

Will it help with anything?

jdubowski wrote:

The connection via the wired network (RJ45) card works?

I do not understand. I'm green in these matters, forgive ... Is it about Ethernet cable?
EDIT: I think I know what's going on. I hooked up the phone to the laptop via the charger and tried to connect (like sending a net from the phone to the paw), but to no avail. But when it comes to such a device like the powerbank, I do not even have something like that.

Anyone_ wrote:

When connecting the router to the laptop, "Solving problems detected the same problem, but instead of Wi-Fi it wrote about Ethernet, the password is also correct.

DHCP client or completely dispersed TCP / IP stack.

Anyone_ wrote:

Will it help with anything?

If the problem concerns a DHCP client then we have a workaround (with all the inconvenience of using it). If the problem is with TCP / IP in general, then we will not get around this method of the problem.

Anyone_ wrote:

I do not understand. I'm green in these matters, forgive ... Is it about Ethernet cable?

Yes, you write above that you have made the attempt and the effect is identical.

In general - repairing the operating system - what is the system?

jdubowski wrote:

In general - repairing the operating system - what is the system?

Windows 8.1

Can I do it myself, will it not be possible without the help of an IT specialist?

Anyone_ wrote:

Can I do it myself, will it not be possible without the help of an IT specialist?

The problem appeared suddenly by itself, or after installing some software?

Repairing the TCP / IP stack is quite a "crazy" topic:

https://www.google.com/search?q=tcpip+repair+windows+8.1

It can be simpler to reinstall the system.

EDIT: Okay. If I understand reinstalling the system, this is a computer refresh, right?
And now the question. Will this delete files, games downloaded from the browser as well as photos, documents? Rip it on a pendrive?

So I have to choose the option to refresh my computer?
The problem appeared alone. So suddenly and simply.
I will try your advice.
Once everything is ripe, let me know what and how.
I hope it works: I