Hub v3 keeps going offline

For several months my v3 hub would go off line then right back on. It has become progressively worse and now it drops off and takes a bit to get back on line. Any help? Thoughts? My network stays solid during that and it is located 20 ft from the router. Thanks

How many Edge drivers are running on your hub? How many devices?

The only drivers I have are Zigbee Switch, Zigbee Contact, Zigbee Motion Sensor and Z-Wave Switch.

And 15 devices total