For anyone still using the GS HT286, I tried to let it upgrade to the latest "beta firmware" 1.1.0.42.. Its seemed to brick it letting me ping it for only seconds after I would restart it.

I put the latest release firmware 1.1.0.37 on my server and got it to take it. Its now working fine.

Just a warning...

I use the 286 (it has actually showed on the stats page that its an HT287) for outgoing faxing and it seems to work for me.