This firmware seems for a Archer VR2800 but your Archer is VR2800v.. My IPTV is set as bridge and do not need to dialup. So i have two entries, one is PPPoE for internet and the other one is bridge...

HI , I advise you to have a reboot and check it again

Well, I think the DSL Annex type is decided by the hardware. And you can not change it unless you change the drivers of the DSL modem chips. TPLink GPL may contain the open source of their Linux...

cat 11 need to aggregate three band. Different ISP use different linked bands group . May be it do not support your isp's

If you can ping the tplinkmifi.net, try telnet tplinkmifi.net 80 to test its' webpage server. And maybe you need to clear the cache of broswer

Try not use your Samsung Galaxy wifi to connect the router several days. I heard that sometimes it possibly kill the router. And several days after, you may need to contact tplink support.