> ## Documentation Index
> Fetch the complete documentation index at: https://support.customtypeone.com/llms.txt
> Use this file to discover all available pages before exploring further.

# WiFi and Bluetooth

1. **Bluetooth (Optional)**<br />You can rename your SugarPixel Mini/Classic to make it easier to identify if you have multiple devices. Default names look like **SugarPixel-04C7** — custom names like Kitchen, Bedroom, or Joseph work well.

* 4–12 characters, letters and numbers only — no spaces or special characters

<Info>
  Phones cache Bluetooth device names, so the new name may not appear immediately. Restart your phone and/or SugarPixel Mini/Classic if needed. In rare cases, a phone may continue to display the old name due to caching.
</Info>

1. **WiFi Setup (2.4 GHz)**<br />Expand the section below that matches your network type.

<div className="cc card-sky">
  <Accordion title="Standard Home WiFi" icon="house" description="Connect to a standard 2.4 GHz home network">
    SugarPixel Mini/Classic connects to **2.4 GHz WiFi** networks.

    1. Select your WiFi network from the list
    2. Enter your WiFi password and tap **Sync WiFi**

    * If successful, SugarPixel Mini/Classic will prompt you to Add CGM (first-time setup) or begin downloading readings.
    * If unsuccessful, SugarPixel Mini/Classic will show a WiFi error message — expand the troubleshooting section below.
    * If your network isn't listed, tap **Rescan**. If it still doesn't appear, it may be 5 GHz only.
    * If your network has no password, enable **No WiFi Password**.
  </Accordion>
</div>

<div className="cc card-orchid">
  <Accordion title="University" icon="graduation-cap" description="Register your device on university authentication networks">
    University networks often use special authentication. Most students connect via **device registration**, not a standard password. If you can't connect after following these steps, contact us with your school name.

    ### Option 1: Device Registration (Most Common)

    Most universities allow IoT devices like smart TVs or gaming consoles to connect by registering the device's MAC address. Search Google for **"\[school name] register device WiFi"** to find your school's instructions, then:

    1. In the SugarPixel app, open **WiFi & Bluetooth** and note the **MAC address** shown at the bottom of the screen.
    2. Register SugarPixel Mini/Classic on the university website using that MAC address. *(Some schools provide a personal WiFi password instead.)*
    3. In the app, select the university WiFi network name. If it's not listed, enable **Type Name** and enter it manually.
    4. Enter the password if provided, or enable **No WiFi Password** if none is required.
    5. Continue with the rest of the SugarPixel Mini/Classic setup.

    ### Option 2: Standard WiFi Password (Less Common)

    Some universities offer a traditional password-based network. SugarPixel Mini/Classic can connect as long as it supports **2.4 GHz WiFi** and does not require a web login page.

    ### Option 3: Contact University IT

    If you're unsure which option applies, contact IT. They may assist with device registration, allow a small personal router, or provide an alternate network for medical devices. Ask them to reach us at [support@customtypeone.com](mailto:support@customtypeone.com) if needed.

    ### Option 4: Mobile Hotspot (Fallback)

    If none of the above work, see the **Mobile Hotspot** section for setup details.
  </Accordion>
</div>

<div className="cc card-lavender">
  <Accordion title="School / Work" icon="school" description="Connect through enterprise or managed network environments">
    Setup at a school or workplace usually requires IT assistance. Share the requirements below with your IT department. If they have questions, ask them to contact us at [support@customtypeone.com](mailto:support@customtypeone.com).

    ### Network Requirements

    * **2.4 GHz WiFi only**
    * **WPA2 (password-based) is supported**
    * **Enterprise WiFi (username/password) is not supported**
    * **Captive portals are not supported**
    * SugarPixel Mini/Classic does not need to be on the same WiFi as the CGM phone

    ### Firewall / Allowed Endpoints

    All connections use **HTTPS** except time sync. Only the CGM in use needs to be allowed.

    * **Dexcom:** \*.dexcom.com
    * **Libre:** \*.libreview\.io
    * **Gluroo:** \*.gluroo.com
    * **Nightscout:** patient-specific URL (provide to IT)
    * **Firmware updates:** cdn.shopify.com
    * **Time sync (NTP):** \*.ntp.org on port 123 — additional servers returned by NTP must also be reachable. A custom time server can be configured if needed (see Custom Time Server below).

    ### Notes for IT

    * This list may change as features are updated.
    * Whitelisting by **SugarPixel Mini/Classic MAC address** is the most reliable long-term approach. The MAC address is shown in the WiFi settings screen of the app.
  </Accordion>
</div>

<div className="cc card-flamingo">
  <Accordion title="Mobile Hotspot / Public WiFi" icon="mobile-screen" description="For hotels, travel, or anywhere that requires a login page to connect">
    Public WiFi (hotels, cafes, travel) requires a login page that SugarPixel Mini/Classic cannot complete. Connect it through a **mobile hotspot** instead.

    <Info>
      If you set your hotspot **name and password to match your home WiFi**, SugarPixel Mini/Classic will connect automatically when the hotspot is on — no reconfiguration needed.
    </Info>

    ### Hotspot Requirements

    * Name and password must use **letters and numbers only** — no spaces or special characters
    * Enable **Compatibility Mode** (or equivalent) to use **2.4 GHz** — this is unrelated to 5G cellular
    * iPhone hotspot name: Settings → General → About → Name
    * Android hotspot name: usually found in Settings → Hotspot settings

    ### If you have a second phone or tablet (Recommended)

    Most phones disable hotspot while Bluetooth is active.

    1. Enable hotspot on your phone
    2. Restart SugarPixel Mini/Classic
    3. Open the SugarPixel app on a second device, connect, and select the hotspot network

    ### If you only have one phone

    1. Open the app and connect to SugarPixel Mini/Classic
    2. Enable **Type Name** and manually enter the hotspot name and password
    3. Tap **Disconnect** in the app and unplug SugarPixel Mini/Classic
    4. Enable hotspot on your phone, then plug SugarPixel Mini/Classic back in
  </Accordion>
</div>

<div className="cc card-aqua">
  <Accordion title="Custom Time Server (Advanced)" icon="clock" description="Classic only — set an internal or alternate NTP server">
    SugarPixel Classic uses public NTP servers by default. If your network requires an internal or alternate time server, you can set a custom one using a micro SD card (16 GB or smaller).

    1. Create a file on the SD card named `config.txt`
    2. Add one line: `ntpserver=YourServer` — replacing YourServer with an IP address, fully qualified domain name, or hostname.local
    3. With SugarPixel Classic unplugged, insert the SD card into the slot on the back
    4. Plug in power to start SugarPixel Classic

    If the custom time server is unavailable, SugarPixel Classic falls back to the default public servers. To revert to defaults, reboot SugarPixel Classic without the SD card inserted.
  </Accordion>
</div>

***

### Troubleshooting

<Columns cols={2}>
  <Card title="WiFi Error Messages" icon="triangle-exclamation" color="#D97706" href="/sugarpixel-mini-classic/troubleshooting/wifi-error-messages" horizontal />

  <Card title="Delayed Readings on Mesh Networks or WiFi Extenders" icon="triangle-exclamation" color="#D97706" href="/sugarpixel-mini-classic/troubleshooting/delayed-readings-mesh-networks" horizontal />

  <Card title="Firewall Issue" icon="triangle-exclamation" color="#D97706" href="/sugarpixel-mini-classic/troubleshooting/firewall-issue" horizontal />

  <Card title="WiFi in Green" icon="triangle-exclamation" color="#D97706" href="/sugarpixel-mini-classic/troubleshooting/wifi-in-green" horizontal />
</Columns>


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