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JongSoon #1735
Connection randomly unstable(1)Category: Technical SupportJune-8-2014 4:13 PM PDT (9 years ago) Go to Blizzard forum post
I've been getting a lot of random lag spikes starting late in the evening, like 8-9pm until 11pm or so.
Today, it started at 3pm and got worst throughout the day.

I've rebooted my modem, router, had everything completely turned off other than Diablo 3.
Still have latency problems where it'll randomly jump to 1500+ latency every couple of seconds.
Is there a way to check what's wrong? I've never needed to forward anything, and it started happening recently.

I'll try forwarding the ports, but other than that. What else can I do to check?
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Dankorii
Connection randomly unstable(5)June-8-2014 7:06 PM PDT (9 years ago) Go to Blizzard forum post
JongSoon,

Let's try running a pathping of your connection to see what that shows us. For the most accurate results, try running the pathping when the connection issue that you are experiencing is at its worst.

Here's a support article that will help with that: Running A Pathping Test

Once you have the pathping, go ahead and post it into your next reply.

***The pathping report is two parts. Once you get to where it says, "Computing statistics for X amount of seconds, you will want to wait about 10 minutes before the second part of the report is complete.***
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Dankorii
Connection randomly unstable(7)June-8-2014 8:14 PM PDT (9 years ago) Go to Blizzard forum post
JongSoon,

I'm not really seeing anything in either pathping.

Can you post some network information?

* Windows Xp, Vista, 7,or 8 (also include if it's a 32 or 64 bit version)
* Firewall (McAfee, Norton, ZoneAlarm, etc.)
* Network Adapter brand, model, driver date, and driver version number (Steps below)

1. Click Start.
2. Click Control Panel.
3. Double-click on the System icon (in Windows XP, you may need to click Switch to Classic 4. View on the left hand side of the screen).
5. Select the Hardware tab.
6. Click on Device Manager
7. Expand the section labeled Network Adapters.
8. Right-click on your network card and select Properties.
9. Click on the "Driver" tab at the top


* Router brand and model # (this should be printed somewhere on the front or back or bottom)
* Cable or DSL Modem brand and model #(this should be printed somewhere on the front or back or bottom)
* ISP (Internet Service Provider)
* Is the connection wired or wireless
* Location (City, State)
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[Post edited one time, last edit by Dankorii at June-9-2014 1:28 PM PDT (9 years ago)]
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Dankorii
Connection randomly unstable(10)June-9-2014 1:45 PM PDT (9 years ago) Go to Blizzard forum post
JongSoon,

* Network Adapter brand, model, driver date, and driver version number (Steps below)
Broadcom NetLink (TM) Gigabit Ethernet


Any idea what the model number is for that network card? I checked on the Broadcom website and it looks like the Netlink series has a few options available. The model number will start with a 57, so for example, it might be something like 5781 or 57795.

* Router brand and model # (this should be printed somewhere on the front or back or bottom)
ASUS RT-N16


1. Make sure that your Asus router is running on the most recent firmware version. It looks like they just had an update on 4/16/14.

Here's a link where that can be found: RT-N16

Once there, select the correct Operating system from the OS drop down menu in order to see the firmware options. If you are not familiar with how to upgrade the firmware, contact the router manufacture for assistance.

2. Once you are sure that the firmware version is up to date, you'll want to be sure that the ports that WoW uses are allowed in the router firewall.

Here's a guide that should help with that: Port Forwarding the Asus RT-N16
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Dankorii
Connection randomly unstable(14)June-9-2014 6:24 PM PDT (9 years ago) Go to Blizzard forum post
Jrim,

Computing statistics for 25 seconds...
Source to Here This Node/Link
Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address
0 TREMOR [192.168.0.5]
5/ 100 = 5% |
1 141ms 5/ 100 = 5% 0/ 100 = 0% 192.168.0.1


Your pathping didn't make it very far, but it does show data loss occurring while the connection is still in your home network. The initial loss happens between hops 0 and 1, which is when the connection is going from your computer to your router. Since you are using a wireless connection, my first suggestion would be to try a wired connection if possible to see if there is any improvement.
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