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Troubleshooting
Solutions to common problems during setup or use are provided here for reference. Follow the steps and the provided link below to diagnose and solve
problems you might experience with your Deco.
If problems still exist, contact us:
Q1. What should I do if I fail to connect to the internet over the mobile connection?
• Verify that your SIM card is an NR or LTE card.
• Make sure that the nano SIM card is inserted correctly into Deco and the Deco is operating in 3G/4G Router mode.
• Check with your ISP to ensure that your SIM card is in your ISP's service area.
• Check with your ISP to ensure that your 3G/4G mobile plan is available.
• Move your Deco to a different location such as closer to the window or door to see whether it gets better signal strength.
• Launch the Deco app, go to
Monthly Data Usage Limit to 0(zero), or disable
• Launch the Deco app, go to
• Confirm with your ISP if you are in a roaming service area. If you are, go to
Q2. What should I do if I fail to configure the satellite Deco and get stuck on "We couldn't find another Deco"?
• For Deco which is operating in 3G/4G Router mode and set as the main Deco, disconnect the Ethernet cable (if any) connected to the front-end
router with DHCP Server function from the Deco's Ethernet port and try again. If it doesn't work, try the following guide.
• Refer to the guide
https://www.tp-link.com/support/faq/1447/
Q3. What should I do if I fail to configure the main Deco and get stuck on "Testing Internet Connection"?
• Refer to the video
https://youtu.be/OSUrGdWH-i0
https://www.tp-link.com/support
More
>
Data Settings
to verify if the
Total/Monthly Data Usage
More
>
Internet
to verify
Mobile Data
Total/Monthly Used
exceeds the
Limit.
is enabled.
Advanced
>
Internet
or video
https://youtu.be/iVgDzoo16T4
Total/Monthly Data Usage
in the Deco app to verify
Data Roaming
Limit. If it does, set Total/
is enabled.
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