Pete's Camp Simultaneous Dual Band for longer range wifi

The default setting on these Fiber Optic Routers in Pete's Camp appears to be "Selectable Dual Band".

Selectable Dual Band supports only one WiFi network, either 2.4- or 5-GHz.  Essentially, a selectable dual-band wireless router is a single-band router with two channels from which to choose; you can use either channel, but not both at the same time.  With a selectable dual band router, all the wireless devices in the home must share a single WiFi network.

Simultaneous Dual Band supports two separate WiFi networks simultaneously using both 2.4- and 5-GHz frequency bands. It not only doubles the available bandwidth but also allows for a more reliable dedicated WiFi network for video and gaming (5GHz) to be created. When connecting multiple devices, having two separate wireless networks avoids over-crowding and interference and allows more flexibility to make the best possible connection.
The ability to simultaneously use both the 2.4 GHz and 5 GHz bands on a Wi-Fi router depends on the capabilities of the specific model. Some older routers may not support this feature. However, if your router does have dual-band capabilities, here's a general guide on how to set it up:

1. Access the router's administration interface: Open a web browser on a device connected to your router's network and enter the router's IP address (192.168.1.254) in the address bar. This IP address is usually printed on the router itself or mentioned in the user manual.

2. Log in to the router: Enter the administrator username and password to access the router settings. If you haven't changed these credentials, check the router's documentation for the default login details.  In Pete's Camp the user name remains TELMEX and the Password was the  Contreseña on the label on the top of the router.

3. Navigate to the wireless settings: Look for the wireless settings (WLAN) tab or a similar option in the router's administration interface.

4. Enable dual-band or simultaneous operation: Check for an option called "Dual Band," "Simultaneous Dual Band," or "Mixed Mode." Enable this option to allow your router to broadcast on both the 2.4 GHz and 5 GHz bands simultaneously.  (Our router in Pete's Camp was unusually old firmware.  I just the named both the 2.4 GHz and 5GHz SSID and passwords the same thing.)

5. Configure network names (SSIDs): By default, dual-band routers will often broadcast two separate network names (SSIDs) for the 2.4 GHz and 5 GHz bands.

6. Save the settings: Once you've made the desired changes, save the settings and wait for the router to apply them. This might take a few moments.

After completing these steps, your router should be broadcasting on both the 2.4 GHz and 5 GHz bands simultaneously. You can connect your devices to the appropriate network based on their compatibility and requirements. Devices that support 5 GHz will often provide faster speeds and less interference compared to the 2.4 GHz band, but the range may be shorter.
DUMBED DOWN version.

In the next step we essentially are combining the two networks so your device itself can decide if it's close enough for 5-GHz or if you walk far away, it will revert to 2.4-GHz.
Make sense?
First connect your laptop, iPad or phone to your 2.4 broadcasted ID that is listed on the top of your router or hard-wire a laptop or computer directly to one of the ports on the back of the router.
ie:  
Nombre de la red 2.4 GHz:  INFINITUMXXXX_2.4
Contreseña:  XXXXXXXXXX. <<<. This is case sensitive
Then type in this IP address directly in to your browser.  Not the search field but in to your browser window.  
192.168.1.254
Choose english in the upper right corner unless you can read spanish.
User Name Remains: TELMEX
Password is the Contreseña listed on the top of your white router.
Press Login
Choose english in the upper right corner unless you can read spanish.
Choose the WLAN tab from the top.
Choose 5 GHz from the left
Change the 5GHz SSID Name to anything you want.
Change the password to anything you want.
Press Save
Your router will restart...
Wait for your device to reconnect to the 2.4 GHz wifi network after the router comes back on.
This time choose the 5GHz wifi ssid and change the SSID name and password to exactly the same as your 2.4 GHz SSID and Password.
Log your devices on to the new SSID you created.  Your wifi should now cover your entire property line.