This router give me problem after few months of use. 2.4Ghz connected to 5-8 deviced all the time and it keep drop user randomly. The connectivity speed was not stable also, range from 1mbps to 60mpbs. After restart, everything is fine but after sometimes, the signal was terrible.

Step taken:

1. Try factory reset.

2. Try change wifi Channel.(tried auto/mamual, change according channel refer to Wifi Analyzer)

3. Try change WiFi mode 802.11.....(tried all 3 mode)

4. Try change frequency(20/40mhz)

5. Try QoS (found best to disable)

6. Speed test using wired, ethernet , get full 100mbps.

7. Test speed by sit beside router, sometimes 60-70mpbs(best time is after restart), sometime will drop till 10mbps.

Please advice what else i can do in this case?

Thank you