Hi, everybody. i meet a problem that confused me several day... I have a macbook pro 2015 with macOS 10.14, and a desktop PC with windows 7. there are in the same internet, so i set the file share between them, and it works. but recently, my MacBook can't connect to the Windows, and in Finder-Network, it said “connection failed”. if i click the "connect with..." button, it appeared that "there was a problem connecting to the server." Ok, anyway, i tried to use Finder-Go-Connect to server, but it also say connect failed, i swear i spell correct IP Address, but it can't work. My friend used her computer and she can work, why? and i try to other windows computer in the same route, i can connect with them. Just can't connect with my windows computer. can anybody help me? Thanks~ BTW: is that the reason that i reset my route recently? i remember in the past, the ip address of my Windows computer is "192.168.3.64", and now is "192.168.3.8". maybe Mac also remember the OLD IP address so cause that ?