ping spikes I think its an ISP problem but am unsure

[CatXice]

Hi,

so when playing games i get this micro lag spikes now and again and i have no idea whats causing it my wife has the same problem so it could be a problem on our network but i have no idea how to test for this or if its a problem with my ISP i need help

Theres a 1gb link from ISP router (4years old ish) to my AP everything on my network is WIFI or wired to this AP.
wiring is my AP 1gb cable to my switch which has both PC wired to it this is 2.5gb link between the PC's (steam local downloads are fast AF thats y i have this also there is only 1 cable running up stairs in the house from were the AP is)

my ap is a TP-link AC1750 in AP mode doesnt handle nat the ISP router is dealing with that (my PC is a plex server as well)
when i ping my wifes PC its fine? 

 

when i ping my laptop (WIFI not sure y it says 0ms when it should be 1ms) 

 

when i ping google its not? 

 

[Kilrah]

You're using wired ethernet, right?

Tried rebooting the router?

[CatXice]

5 minutes ago, Kilrah said:

You're using wired ethernet, right?

Tried rebooting the router?

ye wired 2.5g between the PC and 1g to the router

 

[podkall]

1 minute ago, CatXice said:

yep 2.5g/1g

 

what's the router and how old?

[Kilrah]

2 minutes ago, CatXice said:

ye wired 2.5g between the PC and 1g to the router

 

So there's an additional switch?

[CatXice]

47 minutes ago, Kilrah said:

So there's an additional switch?

48 minutes ago, podkall said:

what's the router and how old?

theres a 1gb link from ISP router (4years old ish) to my AP everything on my network is WIFI or wired to this AP.
wiring is my AP 1gb cable to my switch which has both PC wired to it this is 2.5gb link between the PC's (steam local downloads are fast AF thats y i have this also there is only 1 cable running up stairs in the house from were the AP is)
my ap is a TP-link AC1750 in AP mode doesnt handle nat the ISP router is dealing with that (my PC is a plex server as well)

EDIT: added another screenshot to main post

[PyCCo_TyPuCTo]

Are you monitoring your bandwidth utilization at the same time you see spikes in your ping? Saturation can cause increased latency. So can CPU at 99%, the switch, the AP and the ISP router all have CPU inside of them, it would be hard to monitor them all.

What type your Internet is? DSL, Cable, Fiber? 

Can probably connect a laptop to ISP router directly and ping Google all day to see if you have the same spikes.