port 443 UDP & TCP need to open

> I get intermittet disconnects to the office [...]

   How, exactly, are you _connected_ "to the office"?

> [...] and was told port 443 UDP & TCP need to open.

   "told" by whom?

   Port 443 is normally used for HTTPS, that is, by a web browser making
a secure connection to a web site.  If you can do normal web browsing,
then I doubt that anything is interfering with outbound connections
using that port.

   I know exactly nothing about what you're doing, but it also seems
unlikely that you're doing anything involving incoming connections on
that port, or that anything involving the router settings which might
interfere with that port would be intermittent.

> I can't find where to set the ports in the admin screens.

   I'd call that a lucky break.

> Model: R7000|AC1900 Smart WIFI Router

   Firmware version?  Connected to what?