
Honestly, Check the baby monitor's manual or specifications for its WiFi requirements, such as needing a 2.4GHz network, which older routers often support. Verify your router's settings to confirm it broadcasts on 2.4GHz and not just 5GHz, and ensure the network name and password are entered correctly on the monitor. Test by connecting another device to the same WiFi to rule out router issues.
Restart both the router and the baby monitor, then attempt the connection again in a spot with strong signal. If it still fails, look for any firmware updates for the monitor through its app or website, as updates can resolve compatibility problems. Try temporarily disabling router security features like firewalls to see if they interfere.
If these steps do not work, the monitor might not be compatible with your older router's standards, so consider testing it on a different network to confirm.