Problem with clock

Often my clock doesn‘t stop although i have done my move.....

Check your connection. I use high speed 5G WiFi at home, but when I’m using a public WiFi, my ping connection is horrible, causing Lichess to glitch.

Check out this game:


I permitted a repetition for my own good. During the first 4 moves of the game I moved instantly
and my clock went down 30 seconds, during the next move the clocks entirely disappeared and when they came back i went down about another 20 sec.

Occasionally they would blip off 5 whole seconds for a single instant move during a 5-0 game. There was no
way I was ever going to have time to win so we closed up the position and took a draw.

A similar situation has happened to me before due to bad internet. You probably have the same problem.

Nice rating you have @doctor_dementia.

This happens to me often now, last month... At home, at work, in car. I DO have great wifi most of the time.
It NEVER happened before, same phone, same connection.
Annoying as f**k, for me and opponents.

Same thing here. Every other site/app works fine. Only lichess client "lagging". :(

I just has another game against someone named matranc72. First, the clocks froze,
then the board refused to input my move, then the board blipped and put my
opponent's last move back on its original square, yet it still appeared in the game
notation. Then I reloaded the page despite the warning and had discovered I was
in a lost position due to an incorrect drag-drop when my move was refused, and to boot
I had lost more than a minute. I simply resigned.

My 3-0 game just took 12 seconds off my clock
to make my first 2 moves (made instantly); I resigned too.
Do the math.

'made instantly' do you mean they were premoves?