Cannot connect 2 spotlight cams and 1 Floodlight cam but no problem with ring doorbell 2

Just replaced my router with fiber optic. Connected Ring doorbell 2 with no problem. Floodlight cam and 2 spotlight cams will not connect. Router in the same spot. Full bars when choosing network. Then it say camera may be too far away.

Hi @user15090. Are you connecting this to a 2.4GHz or 5 GHz network? Try connecting to a 2.4GHz network as this network usually has a better range.