Firmware Version- 3.16.0 0.9.1 V6031.0 Build 210407 Rel.7370n -tl ((hot))

If TP-Link has abandoned the device (common for budget routers after 2-3 years), you have two choices:

DuelPontoon21JumprizeMarukyuMaximusMinn KotaO.S.P.RyobiSawamuraShimanoSmithStingerSunlineFrappNarvalMariaForestBerkleyCWCLucky CraftMajor Craft