I'm in the process of setting up my CR200A and transferring over all my settings from my previous Archer A6 router and I cannot find a way to manually set DNS servers on the CR200A.
I can see what my DNS servers are, and what appears to be where I *should* be able to change it, but it seems to be locked off from me

I'm unable to click the dropdown box circled above.
Any help would be greatly appreciated.