Brand new user. Successfully installed openwrt 19.07.n [current stable release] on my wndr3800. Tried to enable opendns by unchecking the use peer dns on the wan config and adding two dns servers 184.108.40.206 and 220.127.116.11. This promptly broke my internet and I was unable to load any web pages. I tried checking strict order and all servers in DCHP and DNS configuration. This didn't fix the problem. I rebooted the modem router and computer and problem persisted. I reverted all these settings and rebooted the modem router and computer and the problem persisted. Trying nslookup openwrt.org results in:
** server can't find openwrt.org: REFUSED
Anyone got any ideas how to fix this?