Measuring what you have.
WHAT TO TEST
Download speed Upload speed Latency Packet loss and jitter
HOW TO TEST PROPERLY
On a cable, not wireless With other devices idle At different times of day Several times, not once
WHY ON A CABLE
Wireless is frequently the constraint.
Testing on wireless measures the wireless, not the connection.
WHY AT DIFFERENT TIMES
Contention means busy-period performance differs.
WHAT A SINGLE TEST TELLS YOU
Very little.
WHAT TO RECORD
Results over time, so you can demonstrate a change.
THAT RECORD
Is what you need when raising a fault with a provider.
WHAT ELSE TO TEST
Whether the problem affects everything or one destination.
A trace to the destination shows where delay appears.
WHAT NOT TO CONCLUDE FROM ONE SLOW SITE
That your connection is faulty.
