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Sagemcom Fast 5688W Gateway
Find technical details, tutorial links, and other information about your Sagemcom Fast 5688W gateway.
About the Gateway
For more gateway steps, such as instructions on how to install your SIM or reset your gateway, check out our Tutorials.
Reading the gateway label
The label on the back of your gateway includes information about the device and network including the default
Front
Back
LCD Screen
Press the left or right arrow ( < or > ) on the LCD panel with your finger to move between screens. The illuminated dot on the bottom of the screen indicates where you are in the screen sequence.
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- The gateway displays up to five bars, indicating signal strength.
- The number of bars shown represents the strength of the gateway's current connection to the cellular network.
- An 'X' indicates the gateway is not connected to the cellular network.
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- The number displayed indicates the number of devices currently connected to the gateway (including wireless and wired devices).
- Use the T-Life app to see and manage each connected device.
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The gateway supports both English and Spanish on the LCD screen. To adjust this setting:
- From the Languages screen, select Change.
- Select English or Espanol.
- Press O (OK) button to set the language.
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The Messages screen allows you to view the message contents by pressing < and > to scroll between messages.
To delete a message:
- Press O (OK) on the panel to select VIEW MESSAGES and view unread messages.
- Select NEXT and read next message.
- Select DONE when you have read all messages.
- Select DELETE to delete a message.
- When prompted with a message asking you to confirm deletion, select YES to confirm.
You can block messages to your gateway through your
T-Mobile account. See Message Blocking for details. -
Notifications can appear at any time during gateway operation. Some are in response to an action you have taken, and others are related to network connection.
Tech Specs
- Battery
- None
- AC Adapter
- 100V - 240V
- 2.5A @ DC 15V
- Dimensions (W X H)
- 4.92 x 8.46 in (125 mm x 215 mm)
- Operating temperature range
- 0° – 50° C (32° F – 122° F)
- Connections
- Dual Band
Wi-Fi 6 (802.11ax) with 4 x 4 MIMO - WPA2/WPA3
Wi-Fi Security - Ethernet plugs 2xRJ-45
- USB Type C x 1 for regular power source
- USB Type C x 1 for data and other USB port purpose
- Maximum recommended devices: 64
- Dual Band
- Network
- 5G bands: n24, n41, n66, n71, n77
- 4G LTE bands: B2, B4, B5, B12, B26, B41, B46, B66, B71
- Broadcast Range
- One gateway is enough to cover all areas of most average size homes.
- The
Wi-Fi signal travels about the same distance as any otherWi-Fi signal, which ranges depending on interference and obstructions, but we estimate it will be approximately 30 feet.
Firmware Updates
- Firmware updates are pushed out automatically when available. They can't be manually requested.
- They're sent out in phases over a few weeks, so not all users get the update at the same time.
- Updates happen between 1 am and 3 am PST; make sure your gateway is turned on during this time to get the update.
- Do not restart the gateway when it’s updating. The gateway will automatically restart once the update is complete.
Firmware versions, fixes, and features
- 1.2.B4
- Security & stability improvements
- 1.2.AC
- Stability improvements
- Internet Line Number availability on the gateway LCD.
- 1.2.90
- Stability improvements
- 1.2.8A
- Security & stability improvements
- Fix for
Wi-Fi calling issue
- 1.2.74
- Security and stability improvements
- 1.152
- Security and stability improvements
- 1.00.14
- Release version