StarCraft® II

Unable to download authentication moduleHelp!

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Posts: 26
Hello. A few days ago, my starcraft 2 had a problem where it did not load the quick match page to play on the ladder. This usually appeared to fix itself in the past, but after 2 days of periodically attempting to long on and being met with the same blank screen, i decided to uninstall and reinstall starcraft 2. When I tried to start up the game again after this, an error message popped up saying that i was having trouble connecting with battle net and eventually the unable to download authentication module error came up.
I searched everywhere for an answer to this problem, and i feel like i've tried everything to fix it. I have:
-Added a cache folder to my battle.net folder
-Ran Starcraft 2 as an admin
-Restarted computer
-Disabled all firewalls and tried again ( i do not use avast)
-Tried playing starcraft on different internet connections
-Deleted all starcraft 2 folders battle net folders, and blizzard folders from my computer and reinstalled.
Im using windows 7 by the way.
Please help!
Support Forum Agent
Posts: 25,964
Hello Jesse,

You might want to try some different DNS servers, and see how that goes.
________________________________________________
Monday - Friday, 8 am - 5 pm PST
Posts: 26
Changing DNS servers didn't affect anything. The same error message poped up saying i was "unable to download authentication module". : (
Is there anything else i can do to fix this?
Support Forum Agent
Posts: 25,964
Let's flush the DNS cache, and power cycle your network.
________________________________________________
Monday - Friday, 8 am - 5 pm PST
Posts: 29
I'm having the same problem...I recentlly reinstalled SCII WoL after getting a new OS, First I was getting the "Unable to download data from Blizzard's servers." Now I can finally connect to the game but am getting the Authentication Module error now? Maybe I'm missing a folder? I dont have the blizzard entertainment folder or battle.net folder in c/programs?

Plz help I was planning on preordering HOTS, but can't if i'm not able to play lol
thanks for your time!
Posts: 26
I've flushed the DNS cache and power cycled my network, but still no luck. Is there anything else i can do to fix this problem? Is there any possible way to manually download the authentication module?
Edited by Jesse on 1/10/2013 12:19 AM PST
Support Forum Agent
Posts: 25,964
I see you're both playing from the same country. I'd check with your ISPs to make sure ports 3724, 1119, and 6881-6999 are open for you.
________________________________________________
Monday - Friday, 8 am - 5 pm PST
Posts: 26
They said that the ports are open. Any more ideas? I've gone a week without sc2 and i really miss it ; ( Is it possible that the issue is coming from corrupted files on my computer?
Support Forum Agent
Posts: 25,964
Have you run the Repair tool?
________________________________________________
Monday - Friday, 8 am - 5 pm PST
Posts: 26
Yeah, i've already tried it several times and still no luck : /
Support Forum Agent
Posts: 25,964
Can you try these commands, and tell us the results?

http://us.battle.net/d3/en/forum/topic/7393109698#1
________________________________________________
Monday - Friday, 8 am - 5 pm PST
Posts: 29
Ahh...So we're both playing from China haha

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\HP>nslookup us.depot.battle.net
DNS request timed out.
timeout was 2 seconds.
Server: UnKnown
Address: 202.106.46.151

DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out

C:\Users\HP>
Posts: 26
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Jesse>nslookup us.depot.battle.net
Server: google-public-dns-a.google.com
Address: 2001:4860:4860::8888

Non-authoritative answer:
Name: wpc.758c.na.att-acdn.net
Address: 12.120.148.128
Aliases: us.depot.battle.net
wpc.758c.att-acdn.net

C:\Users\Jesse>pkgmgr /iu:"TelnetClient"

C:\Users\Jesse>elnet us.depot.battle.net 1119
'elnet' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\Jesse>telnet us.depot.battle.net 1119
'telnet' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\Jesse>telnet us.actual.battle.net 1119
'telnet' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\Jesse>tracert us.depot.battle.net

Tracing route to gs1.wpc.edgecastcdn.net [68.232.45.253]
over a maximum of 30 hops:

1 1 ms <1 ms <1 ms 192.168.0.1
2 1 ms 1 ms 1 ms 223.166.184.1
3 4 ms 1 ms 1 ms 112.64.248.41
4 1 ms 1 ms 1 ms 112.64.243.85
5 2 ms 2 ms 1 ms 219.158.98.145
6 30 ms 30 ms 30 ms 219.158.100.194
7 31 ms 31 ms 31 ms 219.158.96.230
8 33 ms 32 ms 32 ms 219.158.19.202
9 246 ms 243 ms 248 ms 219.158.30.238
10 258 ms * 249 ms sjo-bb1-link.telia.net [213.248.73.189]
11 287 ms 282 ms 313 ms sea-b1-link.telia.net [213.155.134.81]
12 301 ms 310 ms 308 ms edgecast-ic-151890-sea-b1.c.telia.net [80.239.13
5.134]
13 318 ms 314 ms 305 ms 68.232.45.253

Trace complete.

C:\Users\Jesse>tracert us.actual.battle.net

Tracing route to us.actual.battle.net [12.130.244.193]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 192.168.0.1
2 1 ms 1 ms 1 ms 223.166.184.1
3 8 ms 1 ms 1 ms 112.64.248.41
4 1 ms 1 ms 1 ms 139.226.193.37
5 34 ms 30 ms 30 ms 219.158.4.61
6 31 ms 30 ms 31 ms 219.158.101.46
7 27 ms 27 ms 26 ms 219.158.101.58
8 221 ms 223 ms 221 ms 12.116.103.5
9 214 ms 218 ms 218 ms cr83.la2ca.ip.att.net [12.122.128.146]
10 214 ms 216 ms 211 ms cr1.la2ca.ip.att.net [12.123.30.110]
11 217 ms 215 ms 214 ms gar20.la2ca.ip.att.net [12.122.128.181]
12 215 ms 217 ms 216 ms 12-122-254-234.attens.net [12.122.254.234]
13 209 ms 212 ms 212 ms mdf001c7613r0004-gig-10-1.lax1.attens.net [12.12
9.193.250]
14 * * * Request timed out.
15 * * * Request timed out.
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.

Trace complete.

(I'm not sure i did it correctly)
Posts: 26
Did this information help? What else should i do now?
Posts: 1
I am having the same problem! It has been 4 days and both my laptop and desktop pc give out the same issue.
Edited by Hexagram on 1/12/2013 6:12 PM PST
Posts: 2
i also have the same problem , it 's has been 3 days , i can't sign in starcraf 2 + diabo 3
help me
Posts: 2
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Ron>nslookup us.depot.battle.net
Server: cnsm02.zaq.ne.jp
Address: 122.197.254.7

Non-authoritative answer:
Name: gs1.wpc.edgecastcdn.net
Address: 68.232.45.253
Aliases: us.depot.battle.net
wpc.758c.att-acdn.net

C:\Users\Ron>pkgmgr /iu:"TelnetClient"
Tracing route to gs1.wpc.edgecastcdn.net [68.232.45.253]
over a maximum of 30 hops:

1 * * * Request timed out.
2 11 ms 8 ms 25 ms octr01-g2-29.zaq.ne.jp [211.124.240.201]
3 33 ms 12 ms 10 ms smcort-02-t7-3.zaq.ne.jp [211.124.3.149]
4 12 ms 12 ms * djgwrt-04-ae2-0.zaq.ne.jp [211.124.8.102]
5 10 ms 12 ms 12 ms xe-3-2-0.a21.osakjp01.jp.ra.gin.ntt.net [61.200.
82.89]
6 9 ms 11 ms 91 ms ae-5.r23.osakjp01.jp.bb.gin.ntt.net [61.200.80.1
41]
7 * 10 ms 12 ms xe-4-1-0.r23.osakjp01.jp.ce.gin.ntt.net [61.200.
82.86]
8 12 ms 12 ms 12 ms 68.232.45.253

Trace complete.

C:\Users\Ron>tracert us.actual.battle.net

Tracing route to us.actual.battle.net [12.130.244.193]
over a maximum of 30 hops:

1 * * * Request timed out.
2 10 ms 13 ms 11 ms octr01-g2-29.zaq.ne.jp [211.124.240.201]
3 12 ms 14 ms 11 ms smcort-02-t7-3.zaq.ne.jp [211.124.3.149]
4 11 ms 14 ms 10 ms djgwrt-04-ae2-0.zaq.ne.jp [211.124.8.102]
5 14 ms 11 ms 12 ms xe-3-2-0.a21.osakjp01.jp.ra.gin.ntt.net [61.200.
82.89]
6 36 ms 10 ms 69 ms ae-5.r22.osakjp01.jp.bb.gin.ntt.net [61.200.80.1
37]
7 22 ms 10 ms 15 ms ae-2.r21.osakjp01.jp.bb.gin.ntt.net [129.250.2.6
8]
8 115 ms 119 ms 126 ms as-1.r20.lsanca03.us.bb.gin.ntt.net [129.250.3.2
01]
9 124 ms 119 ms 121 ms ae-1.r05.lsanca03.us.bb.gin.ntt.net [129.250.2.2
30]
10 129 ms 122 ms 118 ms ae-0.att.lsanca03.us.bb.gin.ntt.net [129.250.9.6
]
11 * 128 ms 122 ms cr2.la2ca.ip.att.net [12.122.129.234]
12 115 ms 123 ms 119 ms gar29.la2ca.ip.att.net [12.122.129.241]
13 135 ms 140 ms 117 ms 12-122-254-234.attens.net [12.122.254.234]
14 132 ms 115 ms 134 ms 12-122-254-238.attens.net [12.122.254.238]
15 131 ms * 131 ms mdf001c7613r0002.lax1.attens.net [206.16.68.54]

16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 * * * Request timed out.
20 * * * Request timed out.
21 * * * Request timed out.
22 * * * Request timed out.
23 * * * Request timed out.
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.

Trace complete.
Posts: 38
I am having the same problem, someone recommended I delete my cache folder. It wasn't until after this I began having the "unable to download authentication module". But before I was having an issue where I would not see quick match options and I tried to join an arcade game I got "clientsidecache_read_connection_failed" error. I am not living in china, so I don't think it's tied to them. I had also been playing recently without and problems and have not installed anything new since.
Posts: 4
Same issue here. I'm also using Windows 7. I live in Japan.
Posts: 29
Ok...So changing your DNS is a quick fix to this problem.
I changed to Googles DNS 8.8.8.8
it's actually quite simple to do aswell.

It has worked for the past week!!!
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