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Active: 3270 users

Server Blocker

Forum Index > SC2 General
Post a Reply
1 2 3 Next All
SC-Shield
Profile Joined December 2018
Bulgaria828 Posts
Last Edited: 2020-12-28 14:47:52
December 28 2020 13:39 GMT
#1
Hi guys,

I've updated my SC2ServerBlocker program to block game servers in SC2. The common use case is if you play on US server but are matched on an Australian one due to opponent(s). Some people experience lag issues, so you might improve your latency/chances to win if you deselect/block some of servers.

In general, I've seen the following during my testing.
Regions:
EU
Only one server, EU Central. It's not listed in the program.

US
- US West
- US East
- US Central
- Brazil
- Singapore
- Australia

KR
- Korea
- Taiwan

Download: https://www.mediafire.com/file/n8r73lnutp572yp/SC2ServerBlocker.zip/file
Source code: https://github.com/bbalchev/SC2ServerBlocker

Note: my antivirus is suspicious but after scan is complete it says the file is ok. Don't be alarmed. You can check source code for peace of mind.

How it works
First, if you don't have lag issues, you don't need to use this program. If you get a laggy game, I suggest you use "Ctrl+Alt+F" in the laggy game to see what server you're on.
Example: If you're playing on US but on the top left corner (after you execute "Ctrl+Alt+F") you see a non-US server, e.g. Australia, then it's a good candidate for blocking so you're not matched on this server again if it's laggy for you.
Here is a screenshot of top left corner where game server is specified as well as ping:
+ Show Spoiler +

[image loading]


Special thanks to LaughNgamez for helping me with game settings to switch to various servers. Also thanks to wooptr for his original thread here: https://tl.net/forum/starcraft-2/547926-how-to-block-australia-brazil-singapore-servers
I've just automated his instructions and updated IP addresses of Australia and Taiwan since my last post there.

Screenshot:
[image loading]

LaughNgamez
Profile Joined April 2015
Canada523 Posts
December 28 2020 13:50 GMT
#2
Handy tool I recommend everyone use if you get tilted by high ping like me :D

Why Blizzard never included a base option to play only on local servers beats me.
(◕‿◕✿) Hopefully one day a decent caster http://www.youtube.com/LaughNgamez (◠‿◠✿)
Elevenst
Profile Joined April 2010
Canada249 Posts
December 28 2020 14:25 GMT
#3
How does it work?
SC-Shield
Profile Joined December 2018
Bulgaria828 Posts
Last Edited: 2020-12-28 14:47:42
December 28 2020 14:34 GMT
#4
On December 28 2020 23:25 Elevenst wrote:
How does it work?


I've added a section to explain. Thanks for feedback.


How it works
First, if you don't have lag issues, you don't need to use this program. If you get a laggy game, I suggest you use "Ctrl+Alt+F" in the laggy game to see what server you're on.
Example: If you're playing on US but on the top left corner (after you execute "Ctrl+Alt+F") you see a non-US server, e.g. Australia, then it's a good candidate for blocking so you're not matched on this server again if it's laggy for you.
Here is a screenshot of top left corner where game server is specified:
+ Show Spoiler +

[image loading]

_fool
Profile Joined February 2011
Netherlands678 Posts
Last Edited: 2020-12-28 15:29:35
December 28 2020 15:27 GMT
#5
As to how it works technically (not functionally, that's explained above ^^): looks like the application defines firewall rules using the netsh tool that comes with windows. So basically the tool saves you typing stuff like this by hand in the cmd.exe shell:

/C netsh advfirewall firewall add rule name="ScBrazil" Dir=Out Action=Block RemoteIP=123.123.123.123(+more IPs)

It's not modifying SC2 files, just reconfiguring the Windows firewall like anyone with the correct commands could.
"News is to the mind what sugar is to the body"
Elevenst
Profile Joined April 2010
Canada249 Posts
December 28 2020 17:09 GMT
#6
On December 29 2020 00:27 _fool wrote:
As to how it works technically (not functionally, that's explained above ^^): looks like the application defines firewall rules using the netsh tool that comes with windows. So basically the tool saves you typing stuff like this by hand in the cmd.exe shell:

/C netsh advfirewall firewall add rule name="ScBrazil" Dir=Out Action=Block RemoteIP=123.123.123.123(+more IPs)

It's not modifying SC2 files, just reconfiguring the Windows firewall like anyone with the correct commands could.

this is what i wanted thanks
oBlade
Profile Blog Joined December 2008
United States5629 Posts
December 28 2020 17:34 GMT
#7
On December 28 2020 22:50 LaughNgamez wrote:
Handy tool I recommend everyone use if you get tilted by high ping like me :D

Why Blizzard never included a base option to play only on local servers beats me.

At the time the technology wasn't yet developed to isolate regions to play with each other locally.
"I read it. You know how to read, you ignorant fuck?" - Andy Dufresne
vg162
Profile Joined January 2020
6 Posts
December 28 2020 18:54 GMT
#8
wooptr get the hell in here
ZigguratOfUr
Profile Blog Joined April 2012
Iraq16955 Posts
December 28 2020 19:19 GMT
#9
On December 28 2020 22:50 LaughNgamez wrote:
Handy tool I recommend everyone use if you get tilted by high ping like me :D

Why Blizzard never included a base option to play only on local servers beats me.


I mean they did--they just chose to make 'preferred servers' not apply from Masters and up (possibly due to ladder qualifier abuse like what Polt and Hydra were doing).

Though given the prevalence of people blocking servers Blizzard absolutely should make it apply to everyone again (and change it so people can select multiple servers). Since right now people that don't block servers are at an unfair ping disadvantage against people that do.
-Kyo-
Profile Blog Joined August 2010
Japan1926 Posts
December 29 2020 04:50 GMT
#10
Just messaged you about this again last week or so. Thanks for updating it again. You might not be aware of how many people actually use this, including a lot of GM players
Anime is cuter than you. Legacy of the Void GM Protoss Gameplay: twitch.tv/kyo7763 youtube.com/user/KyoStarcraft/
TL+ Member
SC-Shield
Profile Joined December 2018
Bulgaria828 Posts
Last Edited: 2020-12-29 12:23:34
December 29 2020 12:16 GMT
#11
On December 29 2020 13:50 -Kyo- wrote:
Just messaged you about this again last week or so. Thanks for updating it again. You might not be aware of how many people actually use this, including a lot of GM players


Yes, I remember. I've updated the program since I replied to you. There is now a confirmation message when you click Block/Unblock buttons (it was so confusing and I don't know why I didn't do it initially). Also I've added missing IP addresses of Australia and Taiwan, I guess they've got updated at some point. I think it's good to update. Thanks for feedback!
Therapist.
Profile Joined January 2009
United States207 Posts
December 29 2020 16:22 GMT
#12
Thanks for doing this!

How do you determine the IP addresses of new servers as they are added?

Since the IP addresses of the servers will change and you may not always be around to update this app, it would be very helpful to be able to determine what the IP's of a given server region are.
SC-Shield
Profile Joined December 2018
Bulgaria828 Posts
Last Edited: 2020-12-29 17:30:29
December 29 2020 17:28 GMT
#13
On December 30 2020 01:22 Therapist. wrote:
Thanks for doing this!

How do you determine the IP addresses of new servers as they are added?

Since the IP addresses of the servers will change and you may not always be around to update this app, it would be very helpful to be able to determine what the IP's of a given server region are.


Applies to US and KR regions only (EU has only one type of server, EU Central):
First, you need to go to Options -> Language and Region. Then, select "Pick Game Server on Lobby Creation".
Screenshot:
+ Show Spoiler +

[image loading]



This way, when you create a custom game, you will have the following list of servers:
+ Show Spoiler +

[image loading]



Pick server of your interest from that list (e.g. Brazil) and create a game. You could add AI as your opponent. When game is created, run Wireshark (packet sniffer program) and look for UDP traffic. You should see similar exchange of traffic like below:
+ Show Spoiler +

[image loading]



Tip: close as many applications as possible beforehand to reduce noise.
Note: above traffic exchange isn't specific to any game server, I'm unable to host a game at the moment. It's just an example how it could look like.
Required programs: Wireshark - https://www.wireshark.org/

I might create a quick configuration file for next update where people could add IPs manually which will be useful when they change.


Therapist.
Profile Joined January 2009
United States207 Posts
December 29 2020 18:49 GMT
#14
That's great. Thank you very much.
vik7
Profile Joined May 2009
United States227 Posts
December 30 2020 12:20 GMT
#15
F for Australian players lol
NA player, go KT Flash, ST Life( ;( ) , IMMvp, EGJD, CMStorm Polt, SKT Rain, KT Zest, Bisu, RootherO, Stats and teamliqiud
woopr
Profile Joined December 2012
United States112 Posts
January 10 2021 00:06 GMT
#16
--- Nuked ---
robksc2
Profile Joined January 2021
3 Posts
Last Edited: 2021-01-10 19:41:32
January 10 2021 19:41 GMT
#17
On December 29 2020 00:27 _fool wrote:
/C netsh advfirewall firewall add rule name="ScBrazil" Dir=Out Action=Block RemoteIP=123.123.123.123(+more IPs)

It's not modifying SC2 files, just reconfiguring the Windows firewall like anyone with the correct commands could.


So doesn't work unless you enable Windows Firewall? Maybe host file edit may be better.
Foxdier
Profile Joined September 2021
2 Posts
July 10 2023 17:48 GMT
#18
--- Nuked ---
JamieRobles
Profile Joined July 2023
1 Post
Last Edited: 2023-07-13 07:38:22
July 11 2023 16:15 GMT
#19
--- Nuked ---
Rescue1
Profile Joined July 2019
6 Posts
January 04 2024 00:26 GMT
#20
Any update on this?
Apparently today the western server changed its IP range
1 2 3 Next All
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