Our team had received a lot of complaint about "slow Internet", even though the Internet package had been upgraded to the 800Mbps, the situation is not improved at all. What is the reason behind it?
Let start with understanding your Internet package:-
2. When we do the speed test, our data is transfer from Endpoint (our computer, mobile phone) to External Server (speedtest server). The devices in the middle including "endpoint", we called it "node" in network. When your data transfer after Router, means your data had reach WAN Zone, vice versa, data transfer before Router is LAN Zone
3. EVERY NODES is possible become your network bottleneck that cause you feel "Internet Slow". Our mission is to find out which "nodes" is the cause of "Internet slow". Usually we use ping command to do a quick diagnostic. By executing ping command "ping 8.8.8.8" , we observed the performance of the WAN. See the results below:
We found some packets dropped (Request timed out), and also the respond time is not stable (time=109ms).
This is also the major cause of Zoom meeting lagging.
The respond time is consistent (time=12ms) and no packet lost. This is what we expect to see.
If you can see this result means your Internet is normal. You still feel "Internet Slow", you should look at what software or application is running in your computer that make it slow. Sometime it can be caused by virus or malware.
Let look at the further detail, we have to check this is caused by WAN zone or LAN zone. We execute a ping test to your router. Usually router IP is 192.168.0.1 or 192.168.1.1, so run command:-
"ping 192.168.0.1" or "ping 192.168.1.1"
Result 1: You get stable ping result to Router
ISP or External Server have network issue, you can contact your IT expert for further investigation.
Result 2: Your ping result to router is NOT Stable
Problem is coming from LAN including your router, WiFi, Network Switch, WiFi Extender & other network devices.
What you can do:
Restart router, Network switch, WiFi Extender
Check your network have other computer occupying your network
If 1 & 2 doesn't work, contact your IT expert for further investigation