QwartzSpeed
Nashville, TN ยท Works Anywhere in the USA

Will Your Internet Handle It?

Not just speed numbers โ€” smart verdicts for Zoom calls, 4K streams, and lag-free gaming. Built by a field tech who's seen every cable issue in Tennessee.

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Why Is My Internet Slow?

The most common culprits โ€” found in real Tennessee homes.

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Wi-Fi Interference

Your neighbors' routers compete on the same 2.4 GHz channel. Switch to 5 GHz or use a Wi-Fi analyzer to find a clear channel.

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Rented Modem is Too Old

ISPs rent modems forever. A DOCSIS 3.0 modem on a Gigabit plan is your bottleneck. Upgrade to DOCSIS 3.1.

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Bad Splitter in the Attic

Old 2-way audio splitters degrade cable signal significantly. Replace with a proper 1 GHz cable splitter rated for broadband.

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ISP Throttling

Many ISPs (especially Xfinity) throttle streaming services after you hit a data cap. Check your monthly usage in the app.

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Double NAT

Running two routers (ISP gateway + your own) causes Double NAT. Put the ISP box in Bridge Mode to fix gaming latency.

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Too Many Devices

Smart TVs, security cameras, and gaming consoles all share bandwidth. QoS settings on your router can prioritize gaming.

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