Updating the H168N V22 carries inherent risk. Because this is a low-cost, ISP-supplied unit, it lacks "dual boot" recovery (unlike high-end Asus or Netgear routers).
Log into your router’s web interface:
Do not interrupt the power during an update. This can permanently damage the device. zxhn h168n v22 firmware update download upd
Warning: Installing firmware carries risk. Back up current settings and only use firmware provided by your ISP or the device manufacturer. Proceed at your own risk. Updating the H168N V22 carries inherent risk