StarCraft® II

Cannot connect to Battle.net

I've been having connection issues with Battle.net for weeks now. Probably 90% of the time I start up SC2, when I attempt to log in, I get a dialog saying SC2 is unable to connect to the internet. These issues started popping up around 2 or 3 months ago and my set up (computer and router) has not changed at all since SC2 stopped being able to connect to the internet properly.

I do notice some strange behavior: when the connection fails and I close out SC2 sometimes my computer's internet connection has disconnected. Could this be something that SC2 is doing?

What could some causes of this be? I'm mostly really confused since I haven't changed anything about my set up and now SC2 can't connect...

Edit: another interesting tidbit, I ran a tracert from my computer to each of the American servers listed here:

https://us.battle.net/support/en/article/running-a-pathping-test#addresses

and it looks like my connection is struggling to make it to those ips.

>tracert 12.129.202.154

Tracing route to 12.129.202.154 over a maximum of 30 hops

1 1 ms 1 ms 2 ms router [192.168.1.1]
2 * * * Request timed out.
3 79 ms 210 ms 201 ms vl80.aggr2.chgo.il.rcn.net [207.229.191.131]
4 14 ms 12 ms 10 ms bdle2.border1.eqnx.il.rcn.net [207.172.15.196]
5 23 ms 25 ms 20 ms te-8-3.car3.Chicago1.Level3.net [4.71.101.73]
6 30 ms 10 ms 29 ms ae-32-52.ebr2.Chicago1.Level3.net [4.69.138.62]

7 11 ms 14 ms 60 ms ae-5-5.ebr2.Chicago2.Level3.net [4.69.140.194]
8 11 ms 20 ms 9 ms 4.69.158.153
9 25 ms 26 ms 26 ms 192.205.37.149
10 72 ms 92 ms 90 ms cr1.cgcil.ip.att.net [12.122.133.34]
11 72 ms 78 ms 78 ms cr2.dvmco.ip.att.net [12.122.31.85]
12 73 ms 74 ms 70 ms cr1.slkut.ip.att.net [12.122.30.25]
13 78 ms 93 ms 73 ms cr2.la2ca.ip.att.net [12.122.30.30]
14 74 ms 87 ms 74 ms gar29.la2ca.ip.att.net [12.122.129.241]
15 73 ms 71 ms 228 ms 12-122-254-234.attens.net [12.122.254.234]
16 73 ms 69 ms 73 ms mdf001c7613r0003-gig-12-1.lax1.attens.net [12.12
9.193.254]
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.

>tracert 63.240.104.93

Tracing route to 63.240.104.93 over a maximum of 30 hops

1 1 ms 2 ms 1 ms router[192.168.1.1]
2 * * * Request timed out.
3 14 ms 15 ms 37 ms vl80.aggr2.chgo.il.rcn.net [207.229.191.131]
4 20 ms 36 ms 9 ms bdle2.border1.eqnx.il.rcn.net [207.172.15.196]
5 22 ms 11 ms 11 ms te-8-3.car3.Chicago1.Level3.net [4.71.101.73]
6 12 ms 13 ms 58 ms ae-31-51.ebr1.Chicago1.Level3.net [4.69.138.30]

7 8 ms 11 ms 9 ms ae-6-6.ebr1.Chicago2.Level3.net [4.69.140.190]
8 11 ms 11 ms 10 ms 4.69.158.133
9 26 ms 27 ms 48 ms 192.205.37.149
10 53 ms 43 ms 43 ms cr1.cgcil.ip.att.net [12.122.133.34]
11 56 ms 44 ms 44 ms cr1.cl2oh.ip.att.net [12.122.2.206]
12 42 ms 41 ms 39 ms cr2.cl2oh.ip.att.net [12.122.2.126]
13 42 ms 46 ms 49 ms cr2.phlpa.ip.att.net [12.122.2.210]
14 41 ms 42 ms 43 ms gar1.pitpa.ip.att.net [12.122.107.85]
15 45 ms 54 ms 56 ms 12-122-254-242.attens.net [12.122.254.242]
16 167 ms 215 ms 213 ms mdf001c7613r0003-gig-10-1.nyc3.attens.net [63.24
0.65.10]
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.


Should I bring this up with my ISP?
Edited by ShakesMcJunk on 6/25/2013 7:55 PM PDT
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Support Forum Agent
06/25/2013 07:32 PMPosted by ShakesMcJunk
I do notice some strange behavior: when the connection fails and I close out SC2 sometimes my computer's internet connection has disconnected.

Hi ShakesMcJunk, I'd concentrate on this behavior. Are you connected to the router wirelessly, or with an ethernet cable?

What's the make and model of your network adapter and router?

I'd make sure the router's firmware is up to date first. Here's some examples of how to update router firmware:

Linksys: http://linksys.custhelp.com/cgi-bin/linksys.cfg/php/enduser/std_adp.php?p_faqid=4030
D-Link: http://support.dlink.com/faq/view.asp?prod_id=966
Belkin: http://www.belkin.com/support/article/?lid=en&aid=5947

If you're wireless, try changing the wireless mode on the router. The router manual or router manufacturer's support site will show how to change wireless modes.

If you're wired, it may help to change the speed of your network card.
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