Fail in test connection

snap
#1

I’ve just installed snap 8.0 on Windows 10 and I’m having trobule in connection to Sentinel Data Hub (after some time trying to connect shows a Error message: “Failed to retrieve the product list from Scientific Data Hub”).

SNAP_fail
SNAP_fail759×797 52.4 KB

My account (user and password) is ok and I have no proxy (home connetion).
If I test connection in Tools–>Options–>WWW->Test connection, it fails.
Nevertheles, I can connect to the Internet with chrome and other aplications.
In snap, I get a right response in plugins → check for updates, wich means that snap can connect to the Internet.
When I zoom in and out in the box showing the Area of Interest, it only actulizes partially the globe and after long time.
Any clue?
Jose

#2

Maybe your firewall prevents SNAP from accessing the internet. Please make sure that port 443 is open in your firewall settings. How to Open a Port on Windows Firewall
Windows and Mac: How to open ports in your firewall

How to import an external DEM into SNAP?
#3

Thank you for your quick response. I’ve opened 443 port (inbound and outbound; TCP and UDP, for all), but I get the same fail message.
What type of access snap needs to work properly?
Could the firewall prevent such snap access in other way?
Jose

#4

Actual only HTTP(S) is used.
That also the test connection in the Options fails is strange.

You could try the following:
Open the file snap.conf in an editor. It is located in the etc folder of the installation directory. Add to the default_options parameter
-J-Djava.net.preferIPv4Stack=true
This can also be set to the gpt.vmoptions file as
-Djava.net.preferIPv4Stack=true