The masternode enable. During the day, the synchronization with the network periodically hangs. It helps only to reinstall wallet. Such a problem only with this coin, the rest of the nodes work for weeks - months. Platform - Windows 10, wallet 32 bits. Tried the original and modified, the result is the same. Changing nodes in the configuration file does not solve the problem, that's what I have written at last.
maxconnections=80
addnode=80.64.131.241:11113
addnode=80.64.131.242:11113
addnode=80.64.131.243:11113