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 OS X 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 OS X Windows Linux

    No features added Add a feature

    s_client icon
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