Do you mean add a specific time like 11/9/2017 20:00?

What's the hardware version and hardware version of your TL-WR802N?

What's the hardware version of your Archer C9? I don't find any sip alg option on the router. Perhaps you can try to open DMZ for the VOIP system.

jon8829 wrote Thanks, I will contact them. In terms of KRACK, as a travel router, I would imagine most people run these in WISP mode (I know I do), which means they are affected. Indeed, when you...

Do you want setup C9 as a bridge with another router which is already a bridge? Will it connect to the DDWRT router with wireless or Ethernet cable? For wireless bridge, you can use wds. For wired...

Hotspot mode can't accept wireless with a wireless password. Disable the authentication of the phone hotspot and choose dynamic IP for WAN Connection Type on TL-WR802N.