Internet "Bufferbloat" (Lag when others use web)

4.5

Your internet is fine until someone else in the house starts a download or video call.

Symptoms
  • Lag spikes
  • Unstable speed
  • Congestion
Possible Causes
  • Router buffer filling up
  • Maxed out upload speed

Step-by-Step Fix

1

Limit Upload Speed

Set a cap in your router (e.g., 90% of max) to prevent the buffer from filling.

2

Upgrade Router

Modern routers have better "Smart Queue Management" (SQM) to handle multiple users.

3

Check for Background Backups

Cloud backups (iCloud/Google Photos) can saturate your upload and cause lag.

When to See a Technician

Bufferbloat is the #1 cause of "unexplained" lag in modern households.

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