@Marvin_S Thanks for the help , but its not helping. My wifi router is a tri-band router (2.4Ghz , 5Ghz-1 and 5Ghz-2) , 5Ghz-2 doesn't has the same issue, the issue only happen for 5Ghz-1 connection....

My wifi connection from my laptop to AX90 via 5Ghz-1 connection became spikey recently. the ping test i took via cmd to the router spikes after a few seconds and the issue is persistent. Anyone has...