TP-Link Deco X1500 Mesh WLAN Set — Error codes & fixes
Troubleshooting guide for the TP-Link Deco X1500 Mesh WLAN Set. Diagnose an error code and find the fix.
Repeater not connecting
repeater-not-connectingThe Wi-Fi repeater cannot connect to the main router.
Source: TP-Link support — networking troubleshooting
Confidence: 80%
Verified Aug 9, 2026
Switch port not working
switch-port-not-workingA port on the network switch does not work, often due to a cable issue or a faulty port.
Source: TP-Link support — networking troubleshooting
Confidence: 80%
Verified Aug 9, 2026
Slow Wi-Fi speed
slow-speedWi-Fi speeds are far below the plan, often from interference, distance, or an old device.
Source: TP-Link support — networking troubleshooting
Confidence: 80%
Verified Aug 9, 2026
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