Too many variables in how WiFi can be set up, hard to tell.
Since you're in a house, and I'm guessing in the US (mentions of microcenter), try the following:
- Separate 5GHz wifi network from 2.4GHz by giving them separate names.
- Set the channel on 5GHz to 36 or 149, instead of Auto.
- Set the channel on 2.4GHz to 1 or 6.
Then, stick to 5GHz on all devices that support it and where you have a choice, e.g. "forget network" the 2.4. ...
... and see how that goes.