Problem connecting to wi-fi on Xteink X4

I don't seem to be able to connect to my home internet. I've read the issues around spaces in passwords but mine doesn't have any. It just seems to fail to connect when I try to do a system update. It's flashing up that it's trying to connect through my wi-fi and then flashing up with the XTC-EPD connection as well. I don't know if that might be an issue.