The Linksys AX3200 E8452 (2-pack) is a wireless router supporting 802.11ax (2.4 and 5GHz frequency bands), 802.11ac, 802.11n (2.4 and 5GHz frequency bands), 802.11g, 802.11b, and 802.11a.

The safest way to perform the firmware upgrade is to use a wired computer via web UI or Cisco Connect Setup tool. DO NOT power cycle the Router during the firmware upgrade process.