블로그

DCSPEEDTEST BLOG

Internet guides, hardware reviews, latency optimization, and speedrun tips for the modern web.

Upload Speed Suddenly Slow? 7 Real Fixes (Not the Obvious Ones)
Troubleshooting

Upload Speed Suddenly Slow? 7 Real Fixes (Not the Obvious Ones)

Upload speed drops are often misdiagnosed. A common recommendation is 'restart your router' — that fixes maybe 15% of cases. We identified the actual root causes behind sudden upload slowdowns and ranked fixes by real-world success rate.

By Dalto Cardoso August 7, 2025 • 8 min read
High Ping But Good Download Speed: What's Wrong and How to Fix It
Troubleshooting

High Ping But Good Download Speed: What's Wrong and How to Fix It

Your speed test shows 500 Mbps download but your ping is 80ms and games feel laggy. Download speed and latency are independent metrics caused by different network conditions. Here is the diagnostic path to find the real culprit.

By Dalto Cardoso July 21, 2025 • 8 min read
Internet Slow at Night? 8 Fixes We Tested (One Works Instantly)
Troubleshooting

Internet Slow at Night? 8 Fixes We Tested (One Works Instantly)

If your internet crawls to a halt every evening between 7–11 PM, you are not alone — and it is almost certainly not your equipment. We tested 8 fixes and documented exactly which ones work and why, starting with the instant one.

By Dalto Cardoso July 9, 2025 • 9 min read