Server browser issue

[JustDelta 0]

Hi,

Just wondering if anyone is having the same problem,

I've set up a dedicated server which is hosted through OVH, followed tutorials and managed to set everything up fine.

I can find the server in the server browser on my computer, but none of my friends can?

My understanding is I don't need to "port forward" so to speak when it's being hosted on a dedicated server, but more so allow it through the firewall - which i've done, I've allowed the program, and set up new rules for port 57555, 5755 & 27000 which is all the ports I've left as default through the map editor/.bat launch file.

I dont have my steam ID attached to the server in any way, so I'm wondering if there's a reason why I would be able to find the server fine, but no one else can?