Interesting headache with ExpressVPN for the last few days: My phone will work on cellular data. There's no connection with a local link, though. For a while the VPN would only link on cellular data but would remain up if I brought up the wi-fi, but now even that doesn't work.

My Windows PC obviously can't do cellular data, it hasn't linked for 3 days now. I haven't brought it up with support because we are flying back in a few days anyway.