Check that the dongle is plugged in and glowing: a light indicates that the computer can “see” the dongle. If a light isn’t visible, try a different USB port or computer.
Echoview dongles are enabled in specific versions. If you’ve recently purchased, extended or upgraded your license, then you may need to update your copy of Echoview. To do this, go to Help > Check for Updates when running Echoview, and install any updates that are available. This is often necessary even if you’ve only recently downloaded Echoview from our website, as the version on the website does not necessarily know about the latest dongle changes.
If you are using Echoview via Remote Desktop, please see the separate FAQ entry on this question.
If your dongle isn’t working after trying the above instructions, please contact Echoview Support and tell us the name of your license (which is on the tag attached to the dongle, and will be something like EV1234 or ABCD-1) and the exact version that you have installed, which you can find in Help > About Echoview, and will be in the format n.n.nn.nnnnn dongle version nnnnn (we need to know all digits).