i have the lg 42lm620t and brought the lg dongle to go along with it, only thing is everytime i power down the telly and turn back on i have to re-enter the wifi passcode , is there a way to set this to store somehow ??
The TV is broken
The way you are setting it up is broken.
If you have definitely selected any and all SAVE buttons on screen after entering the necessary details and it is forgetting those details then that suggests the telly is broken. It should remember the details whether you go into stand-by or turn off at the mains.