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electricOzone's profile

Contributor

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3 Messages

Tue, Nov 19, 2019 2:43 PM

High Packet Loss to Multiple Carriers in Japan

I'm experiencing regular periods of high packet loss and increased latency to Japan. This is an issue as I regularly speak with my exchange partner via Skype during these times. It appears that sometime in August 2019, a routing change may have been made on AT&T's network for traffic to Japan.

 

The following graphs show latency and packet loss to 221.111.203.65, which is owned by Softbank in Tokyo. However, I can confirm that I see similar behaviour to other carriers and other cities in Japan.

SoftbankTokyo_last_604800.jpg

 

 

SoftbankTokyo_last_31104000.jpg

2 Attachments

Contributor

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3 Messages

3 years ago

@ATTCares

 Any updates on this? This is an ongoing problem and I need someone looking into this.

ATTHelp

Community Support

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204K Messages

3 years ago

We want to help speed up that connection, @electricOzone.

Do you experience any problems with Skype when reaching someone inside the US? Also, are you having any other issues with your internet service?

High latency is something that every user is going to experience when trying to reach servers that are off-shore, and increased latency can result in packets being lost or dropped due to the time it takes to send and receive. The latency can further be impacted based on the speeds you're currently getting, since there will be a delay in how fast the data is being transferred.

With that being said, there's a couple things we want to recommend to try to mitigate some of that loss or delay, or find out where it's happening.

  1. Naturally, rebooting your Gateway/router is a good first step. Unplug the power for about 20 seconds, then plug it back in, if you haven't.
  2. Try to use a wired connection instead of WiFi to make sure that you're getting the most stable speed.
  3. Run a ping test and/or traceroute and monitor where exactly the connection is being slowed down, if at all.
  4. Port forwarding the necessary application ports can help cut down on latency. If you haven't, we recommend setting up the necessary port forwarding rules in your Gateway/router by following the instructions in the link provided.

Let us know if this helps.

John, AT&T Community Specialist

Contributor

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3 Messages

3 years ago

Did you even read my post? Your response would seem to indicate that you didn't.

It's clear from the information I posted that the daily latency spikes are abnormal, and the high packet loss is unacceptable.

The server running these monitoring tests is physically wired into the AT&T router. Please take the time to read my original post and fully understand the issue before copy/pasting a pre-canned response that has no value to solving this issue.

ATTHelp

Community Support

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204K Messages

3 years ago

Hi @electricOzone,

 

No script here. We spoke to a few team members to write a response to hit on some items that have helped others. We will send you a DM to get more information including traceroutes.

 

Ariel, AT&T Community Specialist

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