An error message? Here is what it means

Every message on this page is one the RooF server actually sends, with its cause and the next step.

Error messages

You used today’s free trials
Why
Each connection gets 2 a day.1
What to do
Create an account and use the welcome credit.
You already have a trial running
Why
One trial at a time per connection.
What to do
Go back to the open tab or wait for it to end.
All computers are busy
Why
Running computers reached the server’s current limit.
What to do
Try again in a minute; the live count is on the status page.
Not enough balance
Why
A paid session needs balance for two minutes.2
What to do
Top up with a code or buy a plan.
Device limit reached
Why
Without a plan one paid computer runs at a time.3
What to do
End the other computer or choose a plan with more devices.
Class is not live
Why
Students can start a computer only while the class is live.
What to do
Ask the teacher to start the class.
Teacher balance too low
Why
In a class the teacher pays for, the seat is billed to them.
What to do
Tell the teacher to top up.
Room is full
Why
A room holds up to 8 members.4
What to do
Ask the owner to create a second room.
Room limit reached
Why
An account owns up to 3 open rooms.5
What to do
Close an old room, then create the new one.

The picture is slow or blurry

  1. Check the latency (ms) in the toolbar; it is measured every few seconds between you and the server.
  2. Use “Quality”: pick “Saver” on weak networks or “High” for the sharpest text.
  3. On a phone, turn it to landscape; the desktop is 16:9.
  4. Pause heavy downloads on the same network.

Why did my session end?

  • Trial time up: the free trial has a fixed length.
  • Balance ran out: a paid session ends when the available balance is used up.
  • Room closed or class ended: the owner or teacher ending it ends the room’s computers.
  • The teacher ended your computer: a teacher can end a student’s computer in their class.

If a computer fails to start or disappears mid-session, unsettled minutes are not charged.

The computer does not open

  1. Refresh once; if the session is still running, the link reconnects you.
  2. Open the status page to see whether the service is up.
  3. Try another browser, and make sure your network does not block WebSocket.
Help centre

Other topics

Keyboard & controlsToolbar, touch, TV and gamepadsFilesRooF-Drive and what stays between sessionsRooms & classesInvites, live class and the screen wall

Sources for these numbers

  1. RooF server: two free trials per connection per day, as stated in the terms
  2. RooF server: a paid session needs balance for at least 2 minutes to start, and it ends if the balance runs out
  3. RooF server: without a plan one paid computer runs at a time; with a plan, the plan’s device count
  4. Room member limit on the RooF server
  5. RooF server: each account owns up to 3 open rooms or classes at a time