Visitor
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2 Messages
Speed capped at 60/6 Mbps on XB3 Gateway – San José Downtown, Hardware Bottleneck?
helloo everyone,
I’m troubleshooting a consistent speed cap in San José Downtown. We are using a 3rd Gen Xfinity Gateway (XB3) from 2013/14 in Bridge Mode connected to an Asus router.
The Issue: Speeds are stuck at ~60 Mbps Download / ~6 Mbps Upload.
Testing: The Asus router’s internal speed test confirms the 60/6 Mbps cap.
Stats: Ping is a solid 11ms, which is great for SJ, but the throughput is very low.
Is the XB3 now considered "End of Life" in the San José market? I suspect the hardware can't keep up with the recent network upgrades in the downtown area. Would a hardware swap be the recommended first step?
user_4mxuk8
Visitor
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2 Messages
10 days ago
Update: I logged into the XB3 gateway and checked the signal levels. The SNR is averaging 29 dB across all channels, and the Downstream Power is high at +13 dBmV. I'm also seeing millions of Uncorrectable Codewords. This looks like a major line noise issue or a failing gateway. What are the next steps to get this fixed without a service fee, since the issue is clearly with the signal/equipment?
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XfinityAmira
Official Employee
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4.8K Messages
8 days ago
Hi user_4mxuk8! Thanks for taking the time to visit our Xfinity Forum. We appreciate you being a customer with us, and my team is here to help. Thanks for troubleshooting on your end and providing us with this signal information, very helpful. To further investigate this with you, please send us a Direct Message. Here are the detailed steps to direct message us:
• Click "Sign In" if necessary
• Click the "Direct Message icon” (upper right corner of this page)
• Click the "New message" (pencil and paper) icon
• Type "Xfinity Support" in the To line and select "Xfinity Support" from the drop-down list
• Type your message in the text area near the bottom of the window
• Press Enter to send your message
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XfinitySara
Official Employee
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2.6K Messages
1 day ago
Hey there, @user_4mxuk8. I know we worked with you on troubleshooting your speed and equipment concerns, and you were encouraged to upgrade equipment at one of our Xfinity Store locations, but I don't see any changes in our billing system yet. We're still working with you privately, over DM, but I wanted to tag you here just in case you don't see that notification.
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