If your device is behind another router (a "Double NAT" or "Subnet" setup), the gateway might not be defined correctly.
Once you regain connectivity, install the full version of wget and SSL certificates to secure future connections: opkg_download check your network settings and connectivity
By systematically checking these five areas, you should be able to resolve the "opkg_download" error and get back to customizing your firmware. If your device is behind another router (a