DNS errors on a WAN interface

So...

I have been seeing this DNS error a bit more frequently lately. I had always just assumed it was probably just a temporary issue that would correct itself in time. However, I have been seeing it a lot more frequently, and I also have only ever seen it on one specific WAN interface, but never on any of the other WAN interfaces.

Any thoughts?

errors.png

Attached Images

• errors.png (25.4 KB)