Login to router

That is a very valid concern. You're right: a factory reset will revert the SSID and password to the factory defaults, which would disconnect every smart device in your home. However, there is a way to fix this without the "smart home nightmare" of re-pairing every device. Here is the strategy to get back in while keeping your sanity:

1. Why the password isn't working (The "Two Box" Problem)
If you have TELUS PureFibre, you likely have two pieces of equipment:

The "White Cylinder" (Boost Wi-Fi 6): This is what you see in your living space.

The "Network Access Hub" (NAH): This is a white, square box usually hidden in a utility room or closet where the fibre line enters the house.

The catch: When you go to 192.168.1.254, you are trying to log into the NAH (The Square Box), but you are likely reading the password off the Cylinder. These two devices have different passwords.

The Fix: Find the square white box (NAH). Pull the plastic cover off the front (it snaps off). There is a sticker inside with a specific Admin Password. Try that one at 192.168.1.254 before you do any resets.

2. The "No-Pain" Reset Strategy
If you absolutely must reset, you can avoid re-pairing your 2.4G devices by following these steps:

Perform the Reset: The router goes back to factory settings. All your devices will lose connection.

Log in immediately: Using the default credentials (now that they work), log into the router interface.

Rename the SSID and Password: Change the Wi-Fi Name (SSID) and Password to exactly what they were before the reset.

Example: If your old SSID was "MyHome_2.4" and the password was "Blueberry123", set it back to exactly that (case-sensitive).

The Magic Reconnection: Once you hit "Apply," your smart devices will see their "old friend" (the familiar SSID/Password) and automatically reconnect without you touching a single lightbulb or plug.

3. Solving the 2.4G Setup Issue
To avoid having to disable 5G in the future for new devices, look for a feature in the settings called "Smart Steering."

Disable Smart Steering: This will split your Wi-Fi into two distinct names (e.g., MyHome_2.4 and MyHome_5).

The Benefit: You can then permanently connect your picky smart devices to the 2.4G name, and they will never get "confused" by the 5G band again.