How to block steam from connecting to the internet?

[000000000000000]

No, I do not want to use offline mode.

Need to conserve bandwith excessively.

Anything is fine, ports, hosts file, IP's etc.

[76561198407601200]

A quick google search shows some methods.

[000000000000000]

Any working ones that aren't 5 year old or even functioning at all? Could you link me one? You can google anything, you thought I didn't do that already?

[Hennix]

dont start steam

[Crazy Tiger]

Unplug the router.

[000000000000000]

Forgot to mention, not gonna unplug the router. Still need internet.

[simolkaw]

use your firewall

[76561198407601200]

Originally posted by 世界訂單:

You can google anything, you thought I didn't do that already?

Yes. And if none of those methods work, then you will have to use offline mode.

[Muppet among Puppets]

With a 2 way firewall you can see outbound traffic before it happens

[ReBoot]

Create a rule in Windows' firewall to block all outgoing traffic concerning Steam.exe.

[Judgmental Amaterasu]

Originally posted by 世界訂單:

No, I do not want to use offline mode.

Need to conserve bandwith excessively.

Anything is fine, ports, hosts file, IP's etc.

Just block it through your fire wall. Done.

[000000000000000]

Originally posted by The Living Tribunal:

Originally posted by 世界訂單:

You can google anything, you thought I didn't do that already?

Yes. And if none of those methods work, then you will have to use offline mode.

Which doesn't work.

And for the rest, if steam detects false rules it will make its own new firewall rules.

[ReBoot]

Originally posted by 世界訂單:

And for the rest, if steam detects false rules it will make its own new firewall rules.

Have you actually tried it? I have and Steam indeed couldn't connect despite my PC being connected. Writing this on the browser because Steam swears I have no internet connection. Because the firewall blocks Steam.

[000000000000000]

Originally posted by ReBoot:

Originally posted by 世界訂單:

And for the rest, if steam detects false rules it will make its own new firewall rules.

Have you actually tried it?

Yes?

I modified the rules that were made, tried making new ones.

I've found a fix though, I just use netLimiter to block in/out connections.

[ReBoot]

Originally posted by 世界訂單:

Originally posted by ReBoot:

Have you actually tried it?

Yes?

Well, I've tried it and it worked. I've blocked Steam.exe in the Windows firewall and Steam couldn't connect upon start.

[000000000000000]

Originally posted by ReBoot:

Originally posted by 世界訂單:

Yes?

Well, I've tried it and it worked. I've blocked Steam.exe in the Windows firewall and Steam couldn't connect upon start.

Firewall how? Disabling the firewall rules or using advanced rules?