What is listed on the bottom of your router?
Open a web browser and enter http://192.168.1.1 or http://dlinkrouter.local in the address bar. dsl-3788 firmware
To build the firmware from the GPL source, you will typically need: What is listed on the bottom of your router
Updating the firmware is a straightforward process, but it must be done carefully. Follow these steps precisely: Step 1: Pre-Update Checklist dsl-3788 firmware
New default radio settings. Solution: Change the 2.4GHz channel from Auto to a fixed channel (1, 6, or 11). Set 5GHz to a non-DFS channel like 36 or 149. Also, disable "Wi-Fi Agile Multiband" if present.
Connect your computer to one of the router’s LAN ports using an Ethernet cable.