Firmware Version: 1.13.6 Build 240430 Rel.54880n(5553)

Hardware Version: Archer C6 4.0

I am experiencing a high ping issue. My internet speed is fine, but I am encountering high ping even when testing on 192.168.0.1. The ping varies from 1ms to 1000ms instantly at times. If I restart the router, I get low ping for a few minutes, but the issue returns shortly afterward. Although the speed is good, the high ping is affecting my ability to play online games. The device is connected via 5GHz and is only 1 meter away from the router. I have already tried a factory default restore, but the issue persists. Please assist me.