@David-TP Thanks for your answer... Before Factory reset, the smart speaker seems offline, I am not able to access it... After factory reset the smart speaker, the error messages only "Connection...

@Corralejo Maybe you can check the speed limiter if available on a TP-Link Archer NX210 5G router... 1. Disable Client-Specific Speed Limits 2. Disable QoS (Quality of Service) 3. Disable Bandwidth...

Dear Tp Link Team, Please help me, I have 5 smart speakers ( 1 google nest mini gen1, 1 google nest mini gen2, 1 google home speaker and 2 Xi Smart Clock Speakers)... I`ve had it all for long time.....