[Solved]Can't access couple of websites from OpenWrt

[vgaetera]

Trouble setting up office network!

Did you by any chance install the mwan3 or luci-app-mwan3 package on the router? I had a similar issue today and it turns out mwan3 can be tricky. You'll need to setup mwan3 with both your wan networks before you can use it, otherwise problems occur just as you are experiencing.