Deco App IOS: 3.9.256 Android:3.9.165 Topics New Firmware Troubleshooting&Solution Articles New Arrival November Stay Tuned! October September HomeCare Service update for Deco M5/M9 Plus/Deco X20_V1/V

Deco m5 automatic update to the latest firmware. Parent and child connection. They both lost the speed of WiFi but the LAN still works. Tried installing other firmware (downgrade) still the problem is