Hello! It seems like you're facing an issue with accessing a captive portal through your OpenWrt router. Captive portals are often used in public Wi-Fi networks to authenticate users or to present terms of service before granting internet access.
If your phone is connected to your OpenWrt router, which in turn is connected to a Wi-Fi network with a captive portal, but you're unable to access the captive portal page, there are a few things you can try:
1. Check Router Configuration: Ensure that your OpenWrt router is properly configured to allow the captive portal page to load. Check the settings related to DNS, DHCP, and firewall rules to ensure that the traffic to the captive portal is not blocked.
2. Clear Browser Cache: Sometimes, the captive portal page may not load due to cached data on your phone. Clear the browser cache on your phone and try accessing the captive portal again.
3. Use a Different Browser: If clearing the cache doesn't work, try accessing the captive portal page using a different browser on your phone.
4. Check IP Address Assignment: Make sure that your phone is assigned an IP address by the OpenWrt router through DHCP. The captive portal may not work if the IP address assignment is not successful.
5. Reconnect to the Wi-Fi Network: Try disconnecting and reconnecting your phone to the Wi-Fi network provided by your OpenWrt router. Sometimes, re-establishing the connection can help in loading the captive portal page.
6. Verify Captive Portal URL: Ensure that you are trying to access the correct URL for the captive portal page. Sometimes, the portal page URL is displayed when you connect to the Wi-Fi network.
If none of these steps solve the issue, there may be a more complex configuration problem on the OpenWrt router or with the captive portal setup. In that case, you may need to delve deeper into the router settings or seek assistance from the network administrator of the Wi-Fi network with the captive portal.