Finally figured it out. It turns out it was network. Im using a powerline adapter for it. The problem wasnt with the powerline adapter though as after a lot if messing around (investigation) it turns out that the samsung smart plug interferes with signals on the electric circuit. I have no idea why it is doing this so if anybody could explain this to me it would be great.
As soon as i turned off the smart plug at the wall the powerline adapter had no issues. The strange thing is after restoring network, i then switched back on the smart plug and it still retained network.
I duplicated this issue a few times just for my own sanity. This is on a radial 16amp electric circuit. One thing i forgot to check is if the position on the circuit makes a difference.
Can anyone please xplain to me why the samsung smartthings plug is affecting signalling over the circuit. Tbh i dont think it should…whats it doing?