So I just got a secondhand R8000 router so set up to improve wireless coverage throughout the three-floor apartment I live in with three roommates, who have been complaining that the R6300v2 I brought with me isn't cutting it. At the same time, I have switched us from a standard coaxial cable internet service through Comcast to a FTTH solution, which I am aware requires VLAN tagging and PPPoE configuration. To this end, I have decided to use FreshTomato on the new router, and just leave the old setup behind with an ideally clean switchover once I have everything working. Unfortunately, in the process of flashing FreshTomato to the R8000, I can't seem to get anything to work. I did successfully flash FreshTomato once, and began configuring the WAN for a PPPoE connection with the WAN port using VLAN tag 201. In the process, I appear to have utterly broken my FreshTomato install, and while I can successfully reflash back to the stock Netgear firmware using instructions described in the following post that comes up when you search for "How to Set Up Serial Console for NETGEAR R8000", I appear to be completely unable to flash new firmware. The image attached is the interface that I get when I flash the .chk supplied at the download website for the FreshTomato firmware using the default Netgear interface. I suspect the problem lies either in how I configured the VLANs, which throws an error I have also included a picture of, or in the firmware I am beginning with on the router. Any help is appreciated. PS: Please excuse the reference to a search result above, it would not let me submit the post with the link since my account is brand new and has not made at least 2 posts.