Looks like you’re connected to the Mychron’s Wi-Fi but your phone still says 5g in the top right. If it’s still on 5g it’s not connected to Wi-Fi. I would click the i next to the network name and click forget this network. I would then restart your phone and try again. Could be a glitch/ or when you clicked on it the first time it sometimes says there is no internet and proceeds to use data instead.
Not Mychron savvy but noticed the wifi discrepancy. Let me know if this helps.