Unable to perform system update (302 error)

Hello All,

My X3 arrived this morning and I seem unable to update its firmware. I'm connected to my network but when I select "System Update" I get "Network Fluctuation: 302 {"status code}":" Err 302"}

The device is currently on XT V5.1.6.

Any assistance would be greatly appreciated. This is my second Xteink device (I have and love my X4), but I haven't encountered this issue before.

Thanks again for any help! :)