I use a Pingulux (simmiar to GM990 as far as I know) with original Spark and Mgcamd, or with Evolux Neutrino image and Oscam (latest beta 7082). As I use the box for Sky the settings are a little bid different, but basically the same.
The only strange setting is the reconnect timeout (on my settings 90s) and you might enable "AU disabled" (but that should not have that effect.
For further help: what does the status-page say ? do you get connected, or if nt, with what error ?
do you use DVBAPI or or do you reshare using Newcamd, or whatever protokoll to Mgcamd ?
have you configured a user ? and is he enabled for "Group 1" ??
if you have an ymod-oscam and as it looks like an ORF keyfile, does this work ?