then it ends with green LED which mean LAN connected
Thats my problem no green after the blue... 
i had that problem too in the beginning. btw i have plugged all this setup behind the ps5. no power adapter was needed.
i played 2 hours gaming session last night without a problem and disconnect. heck i even had tons of kills and was mostly top on the list.
but try and plug it into the back of the ps5. also make sure that the config file is connected properly.
if everything still fails. try this
1. revert back to the wifi fw. make sure that this work, test it etc.
2. when wifi method work, then update the beloader with LAN fw again.
3. plug in the beloader to pc again in normal usb mode and open the wifi txt file.
4. write 1 in ssid and password and save.
5. now set up the whole LAN method again.
PS5-> Beloader -> USB hub -> LAN cable and Xim APEX with hub.
now turn on the ps5. wait till its on the main screen.
press the beloader button and see if it gets past the blue LED.