Lights suddenly becoming "not available"?

This happens every so often. I have a bunch of Eufy light bulbs that I have integrated into HA. Occasionally, one will stop responding. Usually, all I need to do is go in and delete the entity and then restart HA and it will be back. Sometimes, however, when I restart HA, the entity just shows as “not available”. When this happens I usually have to reset the physical bulb and then go into the Eufy app and re-add it. THEN it will pop back into HA.
The bulb is still accessible via the Eufy app as well as Alexa, it is only not available in HA. Is there any way to prevent this from happening? Why does this link seem to “just break”?