That's the only way to see if it's the usual.
Remember, due to how WiFi works, ONLY IN A LAB will it be perfect. Also, ONLY IN A LAB where the server is not over the internet.
Some months ago I got some ping issues with my computer and i assumed it was because of my USB adapter.
I bought a new ASUS network card with big antennas and there is literally no difference whatsoever. My friend can bring his laptop and he will have 1-3 ping with no interuption, but I will get these 100+ ping connection to servers and sudden lagspikes.
I have scanned my pc with Malware bytes and multiple other programs, but they didnt show anything.
I have also reset my network settings but it didnt help.
I have Windows 10 and I dont know if its a program running in the background or if God doesnt like me, but I seriously have zero clue what the problem may be.
I pinged google.com and it showed exactly what I mean with the lag spikes, but the only thing it doesnt show is that I always have 100ms.
Reply from 216.58.209.142: bytes=32 time=1684ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=1081ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=12ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=84ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=12ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=14ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=78ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=13ms TTL=55
Reply from 216.58.209.142: bytes=32 time=12ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55
Reply from 216.58.209.142: bytes=32 time=62ms TTL=55
Reply from 216.58.209.142: bytes=32 time=123ms TTL=55
Reply from 216.58.209.142: bytes=32 time=11ms TTL=55

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic