My Square Terminal is now constantly disconnecting from wifi

[misterbill303]

Possibly after a auto software update, but it now disconnects from wifi daily. Have been through all the troubleshooting that's written up both here as well as elsewhere, and still doing it.

It has been perfectly happy with the wifi setup for the last 2 years, so it's not that. I can't get anything more from Square themselves, other than their boilerplate suggestions - none of which have any effect.

Any other thoughts that might be useful, other than changing to a different payment processing service for another supplier?