@Kevin_Z 

I use a tplink wifi receiver for my pc.
I tested with connecting from the router via ethernet cable but didnt resolve my issue. 
Then i connected my pc directly via isp's ethernet cable which solved the ping.

There is no way to test the ping during the spike as it happens randomly. I tried to follow a guide found in this forum about wifi channels and width i followed it for both my 2.4G and 5Ghz which didnt solved either.

Last night i was so frustrated that i flashed Openwrt which solved the problem but i was used to tplink ui and tplink app on android so i flashed stock again which softbricked my router.

Then after trying few hours i was able to find a strip firmware of the older version for my c20 which helped. 
Now i dont have any spikes but i have to reboot my router in every 4/5 hours because internet gets slow in this firmware version. after reboot everything seems fine. 

I dont want to upgrade to the latest firmware.

# i use PPPOE as my connection method and 1.1.1.1    1.0.0.1 is my dns which reduces my ping 

Thank you 


 

@Kevin_Z 

Here you go , 

i am looking for a guide of setup wifi for low ping , it was here in the forum somewhere but cant find it :( can you help ? 

i need setings for both 2.4g and 5g

Thanks

@AsifEmon How do I get that firmware?I have ping spikes of 68 to 500 ms in valorant and fortnite