Since the Technicolor TD5336 is not a widely reviewed "flagship" device but rather a workhorse DSL modem/router often provided by Internet Service Providers (ISPs) in specific regions (particularly Mexico with Telmex/Izzi and parts of South America), this review is based on the typical hardware specifications, user experience reports, and its role as an ISP-issued device.

Changing the SSID and PasswordNavigate to the Wireless menu in the web interface.Select the Primary Network tab.Change the Network Name (SSID) to something unique.Under Security, ensure WPA2-PSK (AES) is selected.Enter a strong password (minimum 8 characters).Click Apply or Save to update the settings. Note that you will need to reconnect your wireless devices using the new credentials. Advanced Configuration Settings

Power: Plug the power adapter into the router and a wall outlet. Turn it on and wait about 5–10 minutes for the lights to stabilize.

  • Security reminders: Use WPA2/WPA3, disable WPS if not needed, keep firmware updated (check ISP/manufacturer), and restrict remote management unless required.
  • Port forwarding / DMZ: Found under NAT or Advanced > Port Forwarding — map external port(s) to an internal IP. For single device exposure use DMZ with caution.
  • Troubleshooting tips:

    5. Common Problems & Fixes

    | Symptom | Likely Fix | | :--- | :--- | | No internet (DSL light blinking) | Check phone line; reboot modem; check ISP credentials. | | Forgot admin password | Factory reset (see below). | | WiFi works, Ethernet doesn’t | Check cable; disable/enable LAN port in admin interface. | | Slow WiFi | Change WiFi channel (Auto to 1,6,11 for 2.4GHz); separate 2.4/5 GHz SSIDs. | | Cannot access 192.168.1.1 | Check PC IP (must be 192.168.1.x); try 192.168.0.1; clear browser cache. |

    . This is a critical "last resort" for users who have forgotten their customized credentials or are experiencing persistent connectivity drops. ISP Integration : Because Technicolor primarily supplies equipment to ISPs

  • Archive.org: Search "TD5336 User Guide 2018" – this includes the original FCC filing.