What to tell the ISP about closed ports?

In General, the current problem is.

Not been home for about a month, came back and then buggy the Internet.
The browser works, Skype on port 443 works.
Not working, no ftp, ssh connection to my servers.
Youtube videos start with a lag of 30 seconds (at the same ISP the day before in the neighboring area of the bugs and such were not ).
The Steam client is not connected (the internal browser works).

What I've done. connected directly to a MacBook. Not working. Connected directly to pc - does not work.
Connected the phone as a modem - works everywhere.

I.e. the problem is clearly not on my side.
The provider says that the ports are not closed, everything is working, dig at.

What do I do?

UPD.
It so happened that the Internet completely disappeared. And while I remotely restores the Internet, the engineer said that they're IP addresses change, but for good things...
July 8th 19 at 11:40
3 answers
July 8th 19 at 11:42
Solution
Well, call the home specialists of the operator, say that the Internet is not working. As a demonstration try to connect the browser to the ftp server and throw them a screenshot. And make the trace to the specified server, specifying the port and throw them conclusion.
This screenshot will be enough to access the technical support?
https://pp.vk.me/c636026/v636026545/1174a/U_UykCB8... - cali.Senger99 commented on July 8th 19 at 11:45
July 8th 19 at 11:44
Solution
Provider never admits that they have something not working. I must say that putting out a contract because the provider does not provide the claimed services. Ask for a refund - 50% refund of the subscription fee for a specified period. Maybe then they will move.

PS Now because of anti-piracy laws, providers are forced to cut everything - not all of it is qualitatively impossible to do so usually cut everything, if only the authorities do not run.
July 8th 19 at 11:46
The router is used? Then see settings
the router was turned off as a possible weak link.

ie the situation - directly cable is connected - Internet is, Skype is, but ssh is not present.
the connected phone as a modem - there's Internet and ssh.

And so on two computers.

I think that's a reason to exclude my devices as a problem? - cali.Senger99 commented on July 8th 19 at 11:49
A 90% chance it is the router problem. Had a similar - cali.Senger99 commented on July 8th 19 at 11:52
: I repeat - check by connecting directly to the computer. The router was removed. The day before everything worked in a different area from that provider. - Bernie commented on July 8th 19 at 11:55

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