Something doesn't add up here.
I've had connections installed everywhere I've rented since my return to Blighty twenty years ago. Going from ISDN to ADSL to cable, and finally to 4G when it turns out a lot better than Virgin's crap. That's three homes and one office, all of them rented. One of them was newly converted, so I had to get a new BT line before I could get ADSL over it.
In each case, I as tenant arranged access. No need to trouble any of the landlords with it. Which is as it should be. Unless the service is included in my tenancy, it's up to me to deal with a provider. And it's pretty clear that the law as it stands permits me to do so, without having to trouble my landlord. Just as I can switch energy supplier. Or install a water meter - in my present home I let the landlord know as a matter of courtesy, but no more than that.
Just what tenants are these, and why are their landlords relevant in the first place? Is this something to do with communal facilities rather than households? Or a complete red herring?