If cannot find the screen after the parameters are set correctly ,can ping control card’s IP, if the ping, then see if the computer firewall blocked. While viewing the control card ID is consistent with the ID of software.
When the parameters are confused or do not remember control card’s IP or ID, it can be handled by restoring the factory settings. (press the test button does not move, power off then power on, two lights to be WIFI module by full brightness turned all off, release the test button)