Mew S1 Professional HomeBase

I had Eufy since they first came out, replacing my Arlo system. I bought the HomeBase S1 along with two S340 cameras (had I seen the S4 cameras I would have gotten those). I wanted to pair it with my other cameras and started with my 2C Pros. From the start I have been having issues. They worked great with the first HomeBase but now they are very choppy even within 3 feet from the base and constantly saying retry when mounted outside in their original spot. The only difference is the S340’s are mounted right below them. I don’t like the fact that the S340 when it moves leave blind spots so I wanted the 2C Pros to provide that void. Has anyone else had an issue linking older cameras?