Problem of connection to all the computers of a site

Hi !

We use TeamViewer 12 as a licensed product in order to monitor and manage the computers through our organization. Since last Tuesday we encouter a problem on one site. All the computers (servers, laptops, desk computers) try to connect, they appear in the console, then they disconnect in a loop, whatever on LAN or WAN. We've already checked the Internet connection, the version of agents, the settings of the proxy (that has not been changed for months). All the other sites are ok.

Does someone get an idea ?