Thanks for reaching out. I'd like to know the exact Model number the Archer modem you're pertaining to.
If you can post a screen shot of the page that would be great and I will have it checked.
Hi, Shayne thanks for the quick response. I'm still learning the ropes on this site so hope the pics are viewable. Modem in question is a VR1600v .
Manual can be found here https://static.tp-link.com/Archer VR1600v_V1_UG.pdf
attached hopefully is a snap of the advanced system tools page showing nothing about backup/restore.