Mcp and efis disconnecting from spad next

Sir,

After a certain flight time, the EFIS and MCP are disconnecting from Spad Next. This happens several times during the flight. To get it working again, you need to open the Spad Next window, select the device and click on the RCONNECT button, which is very inconvenient. Some help?
Thanks

Sorry, there is currently no more convenient way to restore the connection.