When debugging an interface today, I have been unable to access it, so I planned to check if the IP and port are connected. The
result indicated that telnet is not an internal or external command , nor is it an executable program or batch file.
Then I searched the Internet and found a variety of solutions. Finally, I found a reliable one and
tried it. Here is
an example of anomaly:
Open the control panel, click Programs, Programs and Features, click Enable or Disable Windows in the left navigation bar,
find Telnet Client in it, and click OK after checking it. After waiting a few seconds, click Close. . .
(Some computers are Telnet clients, which means the same thing)
Try again, the telnet command is ready (as for why the connection fails, I won't expand it here)
