Discovery Linux Server in AWS

Hi, we are trying to discover a linux machine in scom in our AWS cloud. We have setup a gateway server in AWS and are trying to discover a linux machine, but we getting this error:

Anyone an idea what the problem can be?

I would start with recreating the cert on the unix host:
/opt/microsoft/scx/bin/tools/scxsslconfig -f -h awx0xxxxx -d

also make sure the correct ports are open from your gw to the linux machine. Does discovery of Windows work from your gw ?