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user_h9ng20
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Sunday, May 24th, 2026 2:07 AM

Packet Loss issues

For the past 2 days, I’ve been experiencing recurring intermittent packet loss and latency spikes on my Xfinity connection in The Bay Area, CA. This is affecting all real-time applications including online gaming, Discord voice calls, livestreams, and general internet stability. The connection does not fully go down, but every ~15–25 minutes there are noticeable interruptions lasting anywhere from a few seconds up to ~20 seconds.

What makes this especially frustrating is that raw speed tests still appear normal (roughly 900 Mbps down / 350 Mbps up), but packet consistency and stability are clearly not normal. During these interruptions:

  • Discord cuts out

  • Games freeze or rubberband

  • Streams buffer

  • Ping requests time out intermittently

I have already done extensive troubleshooting on my end including:

  • Full modem/gateway reboot (or cold reboot)

  • PC reboot

  • Ethernet troubleshooting

  • NIC power-saving settings disabled

  • Link speed testing (5Gb and 2.5Gb)

  • Continuous ping monitoring

  • PingPlotter monitoring

  • Testing both local gateway and external targets

  • Confirmed issue affects multiple devices/users in the household, not just one PC

Using PingPlotter and in-game network telemetry, I was able to confirm actual packet loss spikes occurring during the interruptions. The issue appears bursty/intermittent rather than constant slow speeds.

Additionally, I received a notice from Xfinity stating scheduled network maintenance/upgrades are occurring in my area on May 26th, which makes me wonder if there is already known instability or infrastructure work being done locally.

At this point I’m mainly trying to determine:

  1. Whether others in the area are experiencing similar intermittent packet loss/jitter

  2. Whether Xfinity can check for node congestion, upstream instability, signal noise, or packet loss history on the line

  3. Whether this is related to the upcoming scheduled maintenance

Any insight would be appreciated because this issue is heavily impacting gaming, Discord, streaming, and other real-time applications despite normal bandwidth test results.

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6 hours ago

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XfinityDilary

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6 hours ago

 

user_h9ng20 Hi there, I really appreciate you taking the time to walk through all of those troubleshooting steps and sharing such detailed findings. That’s incredibly helpful. I can also understand how frustrating this must be, especially with it impacting real-time applications like gaming and calls. Based on what you’re describing, along with the maintenance notification in your area, it’s very possible the intermittent packet loss and latency spikes are related to the ongoing network work. During maintenance or pre-upgrade activity, you can sometimes see exactly this kind of intermittent behavior even though speeds themselves look normal. At this point, the best next step would be to allow the scheduled maintenance to complete so we can determine if that resolves the instability. Once the work is finished, we’ll have a much clearer picture of whether the issue was tied to the upgrades or if further investigation is needed. If the issue continues after the maintenance window, please let us know right away. From there, we can take a deeper look at your line, including signal quality, node health, and any packet loss history. I truly appreciate your patience as we work through this, and I’m here to help every step of the way.

 

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