hey, i'm having the same problem only with different circumstances. I have tried to upgrade from 4.16 because it was not connecting to the 4.18 on Windows Vista and Windows XP. I, however, was a frequent Limewire user. It may have been 3 weeks since I last opened 4.16 before it refused to connect. I've given it full access in my firewall settings, restarted my computers, and tried uninstalling and reinstalling the program. But according to y'all, I should just wait a day or two and it will start working again?

any help is greatly appreciated.