Erro code 04-150

I have been trying to connect my Samsung washing machine for over a year. I got the same error code 15-200.

Yesterday the smartthings app got an update, and I went to try it again. A new error code; 04-150

Can anyone translate this ?

You may try contacting Support and provide the model number for the washing machine:

US: 1-866-813-2404
UK support 0333 0000333

I got the 04-150 code every time I’ve tried for the last few weeks. New AC. I tried many things like disconnect AC, reinstall app, give app all access, set wifi-network to operate at 2.4GHz only. But what finally was the trouble was the the phone wanted to use the wifi for data instead of 4G, even thou WiFi when connected to AC had no internet access.
Changed settings in phone to allow data over 4G when WiFi was bad or had no internet connection. Worked for me anyway. Hope it will help others.