Re: Battlefield 1 unable to connect ea servers (PC).
That's certainly an odd one @Dzhanan. Does your ISP have any restrictions on your connection, for example, do they throttle bandwidth during peak times?
From your post it sounds like you may be having issues with your connection, I know it sounds unusual but I have had a similar issue myself in the past where I was only able to play online during certain times and outside of those times nothing would work. For me, the solution was moving ISP as I found out that during peak hours they were throttling the connection of people who used a lot of bandwidth.
But before we make assumptions, let's start by taking a look at our Connection troubleshooting steps which you can find here: https://help.ea.com/en-us/help/faq/connection-troubleshooting-basic/
It'll take you a couple of minutes to do them all but please do take the time and do them all. Once done try the game again to see if it works or not.
If you can share your UO Trace that would be great as it allows me to take a look at how your data is being routed.
It may be worth doing two UO Traces, one when you are able to play and another when you are not so that we can compare them and look for an issue.
Darko