Connect ESP32 Heltec Lora to different module

hello,
I have ESP32 Lora (V1), I was able to connect it to another esp32 lora (the same type) using the examples.

I have another different module of type (EBYTE E45-TTL-100) connected to Arduino or something, and I want my ESP32 Lora from heltec to connect to the Ebyte module, the examples does not work out of the box, and yes i set the frequency to be 868 (just the same as E45 module), and I couldn’t make it work.

I’m not very experienced on lora issues, what am i missing and what should i do?

many thanks

(Please note that the other module that i’m trying to connect to is not selected by my choice, it is the client requirement and legacy setup)

You would really need to provide the parameters you use to set up LoRa on the two platforms, then it might be possible to see what might be missing.