so ive been trying to get Winlink Express working for about three weeks now and im at the point where i just want to throw the laptop out the window. running it on HF with a IC-7300 and a Signalink, vara HF is installed and i can see signals on the waterfall no problem. the issue is when i try to connect to an RMS gateway it either times out or i get a partial handshake and then nothing. tried a few different gateways that show green on the Winlink maps and same result every time.

my dial frequency is set correctly as far as i can tell, using the channel list built into Winlink Express and i pick whatever shows good propagation to my area. i'm in the midwest so theres usually a few options. power is around 50w into a dipole that tunes fine on 40m.

not sure if its a VARA config issue or something with my audio levels or what. anyone been through this and figured out what was wrong? feels like im missing something obvious but i cant see it

yeah the audio levels will absolutely kill you with VARA, thats almost always the first thing to check. in the VARA HF setup screen there's a drive level adjustment and you want to watch the ALC on the radio — it should not be moving at all or barely flickering. if the ALC is pumping you're overdriving and the gateway just hears garbage even if your waterfall looks fine on your end. also make sure the Signalink jumpers are set right for the 7300, the USB version should be pretty straightforward but people still get it wrong sometimes.

the other thing i'd check is whether you have the PTT delay set long enough. VARA sometimes fires audio before the radio is actually keyed up and the first part of the handshake gets clipped. try bumping that up to like 200ms or so and see if that changes anything.

had the exact same problem last year. turned out the RMS gateways i was picking looked green on the map but were like 800 miles away and propagation just wasnt cooperating that day even though they technically showed active. started sorting by distance and picking closer ones and it got way better. also worth checking the Winlink.org site for gateway status, sometimes the map is a little behind reality.

one more thing — are you on the paid VARA license or the free version? free version has a speed cap and some gateways i think have issues with it, or at least the connection is flakier in my experience. might not be your issue but worth knowing