TTS cloud vs TTS on Docker problem with Dragino LG308

I have setup TTN stack on docker-compose. Its running fine but now i am trying to connect it with the Dragino LoRaWAN gateway LG308. But its not connecting, while the same gateway when i connect with the TTN cloud version it works fine and start sending data.
I have checked the following parameters uptil now and they all match at both sides:
1- server address (same on both sides gateway and ttn)
3-Frequency Plan channel.
4- Gateway EUI

any one having same kind of issue and solved it?