I tried to call support line but after waiting 15 minutes I gave up and decided to write it here.
So, in short I have no internet after moving to new apartment. I had already notified UPC about move and UPC has updated my adress. It is visible on "my UPC".
The box flashes green and nothing happens. I chekted it has only one entry under downstream but no entry under upstream.
TL;DR: I have no internet after move. Green led flashed all night but still no internet. I resetted connect box : still no internet.
@candemirmehmet , Welcome to the Community!You confirmed via Twitter on Thursday that everything is working now. If this is not the case, please contact the community here again.