Parents-in-law need access to Internet while on the road and I suggested the Spark MF65+ device for them. I connected their laptops to the device before leaving so it would automatically connect to the Internet.

It has been a pretty bad experience. They have their mobiles with Spark and even though the mobiles and the MF65+ itself shows full bars their laptops sometimes won't connect to the Internet. I know they are connected to the MF65+ because when they open the browser it shows a page asking for the password for the modem configuration page. As they're used to paid hotspots that ask for a password they call me at least once a day asking for the password - and I explain they don't need THAT password to access the Internet.

They call me from their own mobile phones so I know there's Spark coverage where they are. Sometimes turning everything off and on again (the MF65+ and the two laptops) fixes it. Most of the times not and they have to use a paid hotspot.

Both laptops running Windows 10 Creators Update, all latest updates applied.

Anyone had similar experiences?