I have a camera that was on the edge of it's range. Worked for a while, stopped for a while and only updated when it was working every 10-30 seconds (sometimes minutes).
I bought the antenna extension for $12.99 (Prime of course)
Description: Crystal Vision Premium HD Wireless Camera Antenna Extension for Crystal Vision, Lorex, Funlux, XmartO, Reolink, Annke, Zosi, A-Zone, Smonet, Zmodo
Now the camera is updating every second.
I moved my router, tried the Beam and another WiFi range extender. Both failed by messing up my other wifi items. And I could not reliably get the bad camera to attach to the Beam.