Inverse of a force download?

I run a dedicated server and would like to know if it is possible to force a user to not download an addon while still being able to use said addon serverside. It seems that when new users try to connect, the sheer amount of addons (yes, we do have a lot) seems to cause the server itself to crash. While as of recently, I have cut back on the amount of addons but would like to add a number of new addons. I don’t have the funding to get a download server, nor can I find one with enough space to satiate my needs. Any help would be appreciated. Thank you and have a nice day.

If your interested I offer 1Gb Fast DL for £2 a month, If your interested add me on steam “Shepsie”.

Oh and to answer your question add “sv_allowdownload” “0” in your server.cfg without fastdl the client will get no files just make sure they have all the addons and a copy of the server cache then they shoudld be able to join fine.

ok thanks, maybe i’ll give it a try and see how it goes on my server.