Multimedia - your computer is configured correctly but the DNS resource is not r

Hi.
For some time now something is happening to the Internet namely disconnected for some time and reconnected.
Yesterday, however, turned off for good.
On the modem from Multimedia each LED is on except the one from the internet.
I wanted to find out where the fault was, I thought it was through a router but in another forum they told me not, so it goes out on a broken modem.
I have all this TV with multimedia and before it was so that it stopped working together with the Internet, and now it happens independently, because the Internet does not work at all.
I tinkered something wanting to fix it, because exceptionally internet is necessary for pc now, I changed dns addresses in settings, in DHCP on the router I also switched to 8.8.8.8 and 8.8.4.4 but to no avail.
I called the supplier, but the technician will send it only on Monday and will probably do it like about 4 weeks ago, i.e. he will simply replace the modem for the third time.
So I am asking for help. I am green in such things.
The system is Windows 10 and the router model is TL-wr841n

Is the computer downloading data from DHCP?
Try setting the network card rigidly if you know the network addressing.

sq9cwd wrote:

Is the computer downloading data from DHCP?
Try setting the network card rigidly if you know the network addressing.

As I wrote: I am green in these matters and I do not really know how to do it

I don't have Win10 on hand, but you'll find network connections in the control panel. There should be a network card you use. There may be more than one, you should know which one you are talking about. Then read the network parameters assigned by DHCP. I'd ask printscreen network parameters, or print it manually.

Tp-Link connected via WAN port to the provider's modem?

jimasek wrote:

Tp-Link connected via WAN port to the provider's modem?

Yes.
There is one WAN cable from the modem and the other is from the television.
From the router, however, from one of the four ports which were going cable connected to the computer.

Added after 3 [minutes]:

sq9cwd wrote:

I don't have Win10 on hand, but you'll find network connections in the control panel. There should be a network card you use. There may be more than one, you should know which one you are talking about. Then read the network parameters assigned by DHCP. I'd ask printscreen network parameters, or print it manually.

Which of these to choose ??

By connecting to the provider's modem (without TP-link) do you have internet access? Have you checked its stability in such a way?

jimasek wrote:

By connecting to the provider's modem (without TP-link) do you have internet access? Have you checked its stability in such a way?

I checked but the effect is the same.


EDIT: I checked through troubleshooting and has now changed to such a notification

Well, it remains to wait for the service technician to fix the fault because you do nothing yourself.

Or maybe there is something I can tell him there when he comes so that the problem does not recur? This will be the third time I have the modem replaced and I would not like to call it again in a few weeks

Have you tried restarting the current modem?

Yes. No effects

Makkusu wrote:

jimasek wrote:

Tp-Link connected via WAN port to the provider's modem?

Yes.
There is one WAN cable from the modem and the other is from the television.
From the router, however, from one of the four ports which were going cable connected to the computer.

Added after 3 [minutes]:

sq9cwd wrote:

I don't have Win10 on hand, but you'll find network connections in the control panel. There should be a network card you use. There may be more than one, you should know which one you are talking about. Then read the network parameters assigned by DHCP. I'd ask printscreen network parameters, or print it manually.

Which of these to choose ??

View network status => Change network adapter settings => 2 Click Local connection (if it is on a cable) => Details
I am interested in what is there.

There is such a thing

LADIES, IT WORKS EVERYTHING.
Outside Wi-Fi. I found a plate with a modem from Multimedia. I put it in, provided login details, some other than wi-fi and I have internet.
Only now I have to do Wi-fi precisely.