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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
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2 Messages
2 hours 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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