Please help take a look at this strange question:
Application scenario is: there are five equipment can collect data, through TCP/IP port (1030), through the internal LAN, transferred to the internal Server (Windows Server 2008 R2), equipment setup mode is a TCP Server, as long as there is data collected, will immediately send,
Often appear after server restart, there are a certain sets of data, there is no fixed, with super terminal and CMD Telnet, try to connect device ports, found that failed this time, the IP address of the ping equipment is normal, this time to take a route to the equipment to build a network, Telnet port normal equipment, data shows that the device itself is out, and in the cables between the equipment to the server, the server still can't Telnet,
The strange thing is, on the network and server didn't do any action, after a period of time (several hours or days), transfer equipment data is back to normal, and then restart the server again, is not normal, is to wait for a period of time,
Four other devices on the same network, did not appear problem,
And server on the network firewall port is open, otherwise there will be no transfer of normal time,