Alternatives to Why Can't I Connect? for all platforms with any license

  • netstat

    Displays active TCP connections, ports on which the computer is listening, Ethernet statistics, the IP routing table, IPv4 statistics (for the IP, ICMP, TCP, and UDP...

    Free Mac Windows Linux BSD

    No features added Add a feature

  • ping.exe

    Verifies IP-level connectivity to another TCP/IP computer by sending Internet Control Message Protocol (ICMP) Echo Request messages. The receipt of corresponding Echo...

    Commercial Windows

    No features added Add a feature

  • s_client

    The s_client command implements a generic SSL/TLS client which connects to a remote host using SSL/TLS. It is a very useful diagnostic tool for SSL servers.

    Free Mac Windows Linux

    No features added Add a feature

    s_client icon
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