Common symptoms
- pages slow to load
- slow downloads
- streaming cuts out
- high latency
- Internet slow on one PC only
Possible causes
The same symptom can have several origins. The most common causes are:
- weak Wi-Fi
- slow DNS
- active VPN
- overloaded router
- network driver
- software consuming bandwidth
Why not ignore this issue?
An issue that seems tolerable today can become more disruptive over time: wasted time, less protected data, weaker security, or a failure at the wrong moment.
- unknown DNS
- zero speed on one PC only
- dropouts during backups
- unknown software using network
What you can check without taking risks
- test another device
- test near the router
- temporarily turn off VPN
- restart router and PC
- check ongoing downloads
Before heavy system changes, back up your important files. PowerIX prioritizes diagnostics and user-approved actions.
Signals that should prompt a quick response
- unknown DNS
- zero speed on one PC only
- dropouts during backups
- unknown software using network
How PowerIX @ Home helps diagnose
PowerIX @ Home analyzes network configuration, DNS, latency, and Windows interfaces to isolate the likely cause.
See the related PowerIX diagnostic: Network and Wi-Fi diagnostic: DNS, latency, connection →
PowerIX diagnostic example
After signup, PowerIX shows your PC status, items to watch, and priority actions in plain language.
- PC health score;
- important issues highlighted;
- AI summary to understand what to do.
More than 20 years of experience in IT, operations, monitoring, and user support. Creator of PowerIX @ Home.
Frequently asked questions
Why is Internet slow only on my PC?
The cause may be a driver, DNS, VPN, firewall, malware, or less capable Wi-Fi adapter.
Does good speed guarantee a good connection?
No. Latency, packet loss, and stability matter a lot, especially for video calls or games.