To: support.au@tp-link.com

Subject: Technical Bug Report: Deco X50 V1.30 Firmware 1.2.10 - Unstable in Mixed Mesh

To the TP-Link Technical Support Team,

I am writing to report a significant stability issue with the latest firmware update for the Deco X50 (V1.30), version 1.2.10 Build 20251201 (or similar).

Since updating today, my satellite DX50 units have consistently fallen offline/restarted, displaying a "Disconnected" status in the app while occasionally maintaining a green LED. I am running a mixed mesh system with a Deco BE65 Pro (Main) and two DX50 satellites, all operating in Access Point (AP) Mode behind a Telstra Smart Modem.

Technical Findings & Logs:

1. SSH Connection Timeouts: Upon inspecting the Deco system logs, the units were repeatedly throwing the error:

   ssh_connect: Timeout to [IP Address] port 22

   This indicates that the management service on the DX50 is crashing or becoming unresponsive under the new firmware.

2. Smart DHCP Conflict: Despite being in AP Mode ((both router and AP Mode), the units triggered "Smart DHCP" (udhcpd active in logs), leading to IP address conflicts and "Double DHCP" issues with the main Telstra gateway.

3. CPU Overload via WAN Sensing: The DX50 units appear hypersensitive to standard "WAN Sensing" packets from the Telstra modem. The logs showed wansensing(throughput) checks every 5 seconds, which seemed to trigger the X50 management crash.

4.  

Resolution: I have successfully restored my network by performing a manual local rollback to Firmware Version 1.2.8. The system is now stable with all units online.

I request that this be escalated to your engineering team to investigate the 1.2.10 firmware's handling of "Smart DHCP" in AP mode and its compatibility with Wi-Fi 7 main nodes.

Product Details:

• Model: Deco X50(AU)

• Hardware Version: V1.30

• Problematic Firmware: 1.2.10

• Stable Firmware: 1.2.8

I look forward to a future update that addresses these issues so I can safely re-enable auto-updates.