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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