I found a work-around by borrowing my friend's old Linksys router and updated by cameras. This is definitely a bug in the C9 firmware: Firmware Version: 3.17.0 Build 20151009 Rel.61423n Hardware...

I also tried applying the 11/25/2015 build and got the same -5533 error code.

I am having the same problem trying to upgrade an AC1900 v1 from 3.17.0 Build 20151009 Rel.61423n to the latest:Archer C9(UN)_V1_160517. With Firefox/IE/Edge browsers I get a -5533 error code. Any...

Model : Hardware Version : Firmware Version : ISP : I have a couple of Foscam IP cameras that I need to upgrade their firmware which needs to be done through a wired connection. The cameras work fine...