Strange problem.
Mikrotik RB952Ui-5ac2nD-TC + USB-modem + 2 viop gateways grandstream + one computer over WiFi.
Some time we lost config on mikrotik and could restore only from backup! It happened more than 4 times per two days! Password is strong and nobody knows it Only winbox and ssh ports is enabled over Internet.
What I need to do? Return it to the shop or install UPS?
We have the same strange behaviour with Zuxel Kineetik LTE modem. Just loosing config... Unpredictable.