Installing a Remote Control Ceiling Fan with Light & Different Wire Configuration
First, check that you have the batteries installed in the correct direction in the remote. Some use both positive buttons up, some down, and some one of each.

Second, check that the remote and fan do not have a channel switch. These are usually mounted horizontally on the fan and are frequently labeled A/B or 1/2. If there is one, the fan and the remote must be set to the same value. It doesn't matter which one, use the one that works best in your home. Make sure the fan is turned off at the wall before changing this setting.

If that doesn't work, remove the lighting assembly and verify that the controls are connected in the space behind it. There are generally three screws around the edge of the plate where the lights attach to the fan. It may be helpful to have a second person safely assisting you. The colors there are generally white, black, and green that match the connections above. Red and/or blue may be used for the control wires in there as well.