WiFi inconsistency

If other devices also have problem it may be caused by router, other networks or your ISP provider. If not then it may be caused by:

  • IPv6 – disable
  • MAC randomization –disable
  • Bluetooth – disable
  • bad connection caused by long distance, obstacles and other physical things – pull router out of cabinet and/or move computer into its neighborhood
  • bad connection caused by other networks – change channels
  • outdated BIOS version – update
  • construction error or broken Wi-Fi card – you do nothing
  • other things which I don’t know.