Why does the internet experience lag when connected to the Xiaomi Router BE19000 Pro?

If the internet experiences lag when connected to the Xiaomi Router BE19000 Pro, please try the following troubleshooting steps:
1. Please disable the IPv6 function on the Xiaomi Router BE19000 Pro before trying again.
2. Adjust the router’s placement and avoid placing it near high-power electrical appliances to reduce signal interference. Please move closer to the router to test the internet speed.
3. You can try connecting to 2.4 GHz or 5 GHz networks separately to test stability. If Multi-band steering is enabled, you can temporarily disable it for comparative testing.
4. Check the router load and the number of currently connected devices to see if any devices are consuming excessive bandwidth.
5. Restart the router to resolve temporary issues.
6. Ensure that the Xiaomi Home App and router firmware are updated to the latest version for performance optimization and stability improvement.
7. Back up your data, restore the router to factory settings, and then reconnect and test.
8. If network lag affects usage, please contact the local after-sales service center for further assistance.