Silly question but how does one re-sync from scratch?? I tried to reinstall wallet to fix my sync, but now it wont connect to any nodes or sync, it just opens instantly with 0.00 coins in it. I have multiple backups of my wallet.dat, but I can't seem to rescan them, wallet just opens normally with no connections.

I tried the -rescan command, but it didn't work?

Cheers