Frustrating random system offline

Hopefully someone can point me in the right direction.
Weatherflow station (base) is literally 6 inches from the router. The RSSI reading is 18
Both are plugged into the same UPS. So power glitches are not an issue.
The sky and 2 airs are all within 50 feet of the base in different locations so wifi being blocked would not an issue for all at the same time.
Several times a week at different times, I get the Station Offline message. Usually unplugging it and re-plugging it in fixes it, but sometimes I have to do it 3-4 times before it will finally reconnect.
Any thoughts or hints?
TIA

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