How to check a network connection

Problem

Introducing an easy way to check a network connection.

Solution

1. Using ping

Ping <IP address> (Figure 1)

Note: Because ping is blocked by a firewall, it is needed to temporarily disable the firewall.
Otherwise, enable the "File and Printer Sharing" For Windows Firewall. For third party firewall, enable ICMP protocol.

Figure 1.

2. Using Powershell

Test-netconnection <IP address> -port <port number> (Figure 2)

Figure 2.

3. Using telnet

telent <IP address> <port number> (Figure 3)

Figure 3.

The unreadable characters are appeared when checking a connection to port 10000.

To terminate the telnet connection, press the "Ctrl" + "]" keys at the same time. The cursor will return. Then enter "quit" and the "Enter" key.

Note: The "Telnet Client" feature must be installed on the system running the command before using the telnet command. (Figure 4)

Figure 4.

4. Using PortQry.exe

A) Download from here and run PortQryV2.exe to unzip.

B) Open Command Prompt and change to the folder unzipped in A).

C) Run PortQry.exe -n <IP address> -e <port number> -p tcp (Figure 5)

Figure 5.

5. Using IE browser

http://<IP address>:<port number> (Figure 6)

It is normal if unreadable characters are appeared.

Figure 6.