Internet "Slow at Night" (ISP Congestion)
4.5
The internet is fast during the day but slows down significantly between 7 PM and 11 PM.
Symptoms
- Evening slowdown
- Buffering
- High latency
Possible Causes
- Neighborhood congestion
- ISP overselling bandwidth
Step-by-Step Fix
1
Run Speed Test at Different Times
Document the difference between 10 AM and 8 PM to show your ISP.
2
Switch to 5GHz WiFi
Avoid local interference from neighbors' routers which also peaks at night.
3
Contact ISP
They may need to "split the node" in your area if it is overloaded.
When to See a Technician
Cable internet is a shared medium; if everyone in your block is watching Netflix, your speed will drop.
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