I'm having trouble accessing the site when out and about. I can access it fine on WiFi but not on my data. It's happened before but the problem seemed to sort itself. Any ideas?
Try turning off wifi.
If that does not work and you have an account for your mobile provider on a contract log in and check adult content setting.
If its PAYG some networks you may have to contact them directly.
https://www.fabguys.com/articles/FAQ
We can access the site on Wifi but not on mobile network (or the other way round!). We get a connection/security/certificate error.
If you get a connection/security/certificate error accessing the site on 4G/mobile-data but not on WiFi (or, the other way round!) it means your mobile network (or ISP if on wifi) has blocked your device from adult content. Some mobile networks have started to do this to phones that have always been 18+ verified and some seemingly do it randomly. If you contact your mobile network on their helpline or via their website, you will see how to age verify your mobile account. The error you see is your ISP trying to display a message which does not show on a secure/ssl site like Fab. We've created a special page you can view which isn't served over secure/ssl so should be able to see the underlying message, here.
Once you have age verified your phone, your network usually advises turning the phone off then on again. It sometimes takes a few minutes then for the block to be removed.