No. You can turn off your computer entirely...
doesn't work for me delegated harvesting is deactivated each time i close everything, and when i open it again i can't reactivate it again, error 699 like local harvesting activate again automatically each time i open my wallet.
I have localhost set up in "host" so that might be the problem. How can i choose another host ?
Yes. Sorry I assumed you are not harvesting locally. If you are "remotely" harvesting on your own node/local pc - you need to have it turned on... If you are harvesting on some remote node - you can turn everything off on your side...
You can enter addresse (like rigel3.nemwork.net) under Settings instead of localhost.
You can see the list of nodes here:
https://forum.ournem.com/vps-nodes/list-of-dedicated-vps-nodes-to-conect-nem/Be mindful that some of them may not work or are full ATM.
We are expecting more detailed tutorials in comming days ahead..
Enjoy!