No Connection to DNS Server: Sudden Internet & WiFi Issues, Router Settings & Provider Hotline

Hello, I write from the phone no other option so it will be short:

Suddenly the Internet stopped working and the message pops up saying no connection to the dns server.
: edit: Wifi also doesn't work.

The problem started in the morning but I did not have it. Then time to analyze it until now nothing has changed the hotline of the supplier is of course silent so I do not know whether they are doing something or not.

In the router settings it looks like the photo attached, unfortunately the fact that I had instructions for checking it does not change the fact that I have no idea how to read this is it a problem that the equipment or rather the fault of the Internet provider?

Thank you in advance and best regards.

Your router is not connected to the "Internet". Restart the router, check the telephone cables and filters. There was no storm by accident?

There was no storm. I did the router start after returning from work (first with the button, then for safety I disconnected and reconnected the power supply). I checked the cables as far as I could but unfortunately they stretch through 3 rooms and it is difficult to assess the whole 10 meters ...
I don't know what to look for when filtering.

Added after 1 [minutes]:

There was no storm. I did the router start after returning from work (first with the button, then for safety I disconnected and reconnected the power supply). I checked the cables as far as I could but unfortunately they stretch through 3 rooms and it is difficult to assess the whole 10 meters ...
I don't know what to look for when filtering.

Instead of a router, connect a landline phone test. As cables are working, conversations should work and additionally noise should be heard.
Filters - disconnect all telephones from the installation along with these "cubes" between the socket and the telephone. Connect the router directly to the telephone socket.
Is the router configured correctly? Did you change anything before this crash?

Familiarize yourself with this:
https://www.orange.pl/omnibook/konfiguracja-wlasnego-routera-adsl-vdsl
Set PPPoE and LLC instead of PPPoA and VC-mux

and here the pipes and filters:
http://www.orange.pl/kid,4002313851,id,400231...laczenie-zestawu-sprzetowego,helparticle.html

No configuration changes have been going on like this for a year.
I don't have a landline phone. From the beginning, the router is plugged into the telephone socket.

The router obtains ADSL synchronization but does not connect to the IP network (no IP address from PPP communication),

please report the problem to the operator's technical support.

myszkoscielna wrote:

The router obtains ADSL synchronization but does not connect to the IP network (no IP address from PPP communication),

please report the problem to the operator's technical support.

Actually. I didn't notice the bottom of the picture. Only the operator remains.

If it's a neostrada then you can try to register again

https://www.orange.pl/slr/pl/rejestracja
http://www.orange.pl/kid,4004241979,id,400441...,Jak-zarejestrowac-Neostrade,helparticle.html