Site admin disconnected while on mobile data

Hey all,

This problem is bit odd but hear me out. I have noticed that all my wordpress sites are getting constant disconnects while in post editor. All sites are latest 4.4.2 and hosted with different companies (obviously different setups all together). If I use wifi connection (not depending on location or network) all sites work just fine. But when I switch to mobile hotspot, WP sites start having disconnects. It’s not about location either. And not to mention, all other sites and email clients etc. work just fine. Just WordPress sites with mobile hotspot.