Lost zones T3200M with Wifi Plus

[wireless]

We had poor wifi coverage in the upstairs area of our house. To correct this we got a wifi extender with wifi plus. When installed, we had 4 networks to choose from, two called 2.4G and 5G and two called 2.4G upstairs and 5G upstairs.

Recently we had a power outage and the upstairs networks disappeared. As suggested on the Telus website, multiple resets by unplugging for 30 seconds didn't make the upstairs networks return.

Depending on where we are in the house, on average, we are getting between 25-30 Mbps signal strength.

Suggestions?

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