Why Can't I Connect to my Host?

An inability to connect to a host system can be caused by a variety of issues. Many of these resolve to configuration problems.

Check the host address, emulation and communications requirements

A failure to establish a connection or a connection with visual corruption on the terminal display is most often a symptom of a misconfiguration. It is recommended that you check the emulation and communications requirements of your host system and confirm these with your systems administrator. Ensure that the terminal, communications protocol and remote host address are correct. Choosing an incorrect emulation or even just an incorrect terminal model variant of the correct terminal emulation can result in unusable host connections.

Ensure you have network connectivity

Ensure network firewall settings do not prevent connectivity. SSH connections use port 22, telnet port 23.

iPad privacy settings

With the release of iOS 14, Apple has introduced a number of changes to privacy settings. One of these setting relates to local network permissions. When TTerm needs to access a host that resides on your local network, it will now ask for permission to find and connect to local devices.

You will be requested to grant this permission via a pop over message. However if you have dismissed this dialog or wish to revisit the setting it can be found by opening the system Settings app and navigating to Privacy > Local Network. Set the configuration item for the TTerm app to ON to allow TTerm to communicate with hosts on your local network.

If problems persist and you believe the issue to lie with TTerm please contact Turbosoft’s support team. You can raise an issue directly through the app by selecting About from the program menu and tapping the Contact Support button. Alternately raise an issue through the support request form.