What could be causing PTP connection issues?

I purchased two SXTsq Lite 5 antennas with the intention of setting up a point-to-point (PTP) connection. However, I’m encountering an issue with one of the antennas where it continuously searches for other channels after selecting the SSID to connect to. I have updated both antennas to the latest firmware (version 7.6) and even attempted a factory reset, but the problem persists, preventing me from establishing the desired connection. Do you have any insights or suggestions regarding this matter?