Before you begin
Separate connection, speed and latency. A PC can connect to the router while the internet service is down. A fast download can coexist with inconsistent gaming latency. Note which problem you have and compare another device on the same network at the same time.
Start with our no-internet guide if nothing loads. For an intermittent or slow connection, record whether the PC uses Wi-Fi or Ethernet, the distance from the router, the adapter model and the times the issue occurs. Avoid changing several router settings while other people depend on the network.
Work through the checks
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Establish a useful comparison
Try a known-working Ethernet cable to a router LAN port if practical. Keep the PC and test location otherwise unchanged. If Ethernet is stable and Wi-Fi is not, concentrate on the radio path and adapter. If several devices fail together, check the router and service status with the ISP. A single website failure can be a site problem rather than an internet failure.
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Check the physical setup
Fit all required Wi-Fi antennas and keep an antenna base clear of the metal case and obstructions. Check Ethernet plugs are latched and the cable is not crushed or sharply damaged. Try another LAN port and a known-working cable one at a time. A link light proves some physical communication, not that the internet service or every cable pair is working correctly.
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Choose the appropriate wireless band
A 2.4 GHz network often reaches further through obstacles but shares crowded spectrum. 5 GHz and 6 GHz can offer more capacity at suitable range with compatible equipment. The best choice depends on walls, interference, router position and adapter support. “5 GHz” Wi-Fi is not the same as a mobile “5G” service. Test the actual connection instead of assuming the higher number always wins.
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Reduce interference sensibly
Move the router or antenna away from dense obstacles and sources of interference where practical. Keep a baseline measurement and compare the same location after each change. Use the router’s documented automatic channel selection as a starting point. Do not apply fixed channel widths, roaming settings or transmit-power values from a guide for a different adapter; the available options and trade-offs vary.
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Keep network software appropriate
Use the adapter manufacturer’s supported driver and Windows network troubleshooter. Leave Ethernet speed/duplex on its normal automatic setting unless there is a diagnosed reason to change it. Network reset can remove adapter configuration, VPN settings or virtual networking, so record these first and use it as a later step. Do not disable the firewall or antivirus as a general speed improvement.
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Secure the router and retest
Use the strongest compatible modern security mode recommended by the router manufacturer, normally WPA3 or WPA2-AES where required. Do not use WEP or obsolete WPA/TKIP as a modern setup choice. Keep router firmware supported, use a strong Wi-Fi passphrase and secure its administrator account. A restart is different from a factory reset: avoid the reset pinhole unless you have the ISP setup details and a deliberate plan.
What the results tell you
Only Wi-Fi is unstable
Compare bands, antenna position, interference and the adapter driver. A stable cable connection is valuable evidence.
All devices lose access together
Check the router/service status. Reinstalling Windows on one PC is unlikely to solve a shared outage.
Gaming stutters while downloads run
Measure latency during congestion. Pause the competing transfer and compare; download bandwidth alone does not describe connection quality.
Common questions
Will a faster adapter exceed my broadband speed?
It may improve the local link, but internet speed is also limited by the service, router, server and other traffic.
Should I make my network public or private?
Use the appropriate Windows network profile. Private enables different discovery/sharing behaviour; do not select it for an untrusted public network just to fix connectivity.
Does a strong signal guarantee good gaming latency?
No. Interference, congestion and the route beyond the router also matter. Compare repeatable tests and actual game behaviour.
When to contact ElitePCS
Send the adapter and router models, connection type, whether other devices fail, and results from a cable or location comparison. Do not send the Wi-Fi password or router administrator credentials.
Contact ElitePCS support. Include your order number, the exact symptom and the checks you have completed. Keep passwords, licence keys and recovery keys out of screenshots.
Technical references: Microsoft Wi-Fi troubleshooting · Microsoft network setup. Reviewed 27 September 2026.