First number isn't showing the amount of players online.. It shows only the amount of players logged to the current game port. There are 3 ports in total (actually 4). The second number shows total amount of accounts logged into the game. We had 900+ players in Saturday / Sunday which is above average during the weekend (considering the fact that even if we had 1000+ week ago it was due to x2 event when ALOT of players were having alts logged to open / reset instances)
Also regarding 'cannot connect to the server', it's not issue on our side, but problem with anti virus / firewall blocking connection of the patcher / launcher / elementclient - they all need to be added as exceptions. I have noticed that avast! is blocking them, maybe there are more.