FR24 shows Status as Offline

Hi everyone, new to the forum, however a long-time FR24 user.
Anyway, I got a Raspberry Pi3 and a DVB-T USB stick to feed data for FR24, it's connected to a UPS and wired up to the router so there are no power outages.

However, twice today I've noticed the feed goes offline on it's own and comes back up on it's own as well. I'll log in to FR24, it'll go and say 'Status: Offline', last seen online will be about 5-10 minutes before the current time. I'll stay logged into the session, and within 2-3 minutes, it'll show as Online again.

Is this normal, or is something wrong? Shouldn't it always show online, regardless of whether I'm logged in or not?

Also, another ting I noticed was that my Business subscription states that I can be logged into 3 devices at the same time.
During RBPi setup, it asked for my email and pass for FR24, then I log in sometimes on my laptop (otherwise stay logged out), and am logged in on my smartphone. I was suspecting that maybe because of too many log-ins, it affects the Pi3, am I going insane or is this possible?

Excuse the newbie questions, I just want this thing to work well, and not give me or FR24 any issues.

Cheers