Yeelight S1 color not connecting

I have a yeelight s1 color and it’s not connecting. It worked previously before we changed our wifi router. I can’t change my dns on the router settings for some reason and the network I am connected to is a 2.4g network. Every time I try and pair, it will just load to 99% and says the connection is lost and try again. I think the router is the problem but I’m not sure which part of it is.

check your wifi settings under security use WEP + WPA2 instead of WPA2 + WPA3

i also got a new router and could not connect them anymore.