Did you previously have the issue with OpenWrt on any other router?
Quick search turns up this thread with possible solution:
https://forum.openwrt.org/t/ppp-and-dnsmasq-issue/91475
Did you previously have the issue with OpenWrt on any other router?
Quick search turns up this thread with possible solution:
https://forum.openwrt.org/t/ppp-and-dnsmasq-issue/91475