Hi @chenton,
Yes, this could be an issue if your computer has limited internet access (eg, DNS working but web access filtered). Most likely proxy or firewall settings. As a workaround, you could just comment out the VersionCheck call, around line 23 of GannetLoad.m as suggested by @NSniper
@mmikkel, I’ve proposed some updates to VersionCheck which should handle this scenario a bit more cleanly.