The following link provides information on temporarily disabling the 5 GHz band, to allow the hub to easily connect to the 2.4 GHz band. https://www.tp-link.com/us/support/faq/3311/
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Hub & SpeakerHub Troubleshooting
Are you having trouble connecting your YoLink hub to your WiFi network? Do you also have a dual band router (i.e. 2.4 GHz and 5 GHz) or mesh system (Google Nest WiFi, Amazon eero, etc.)? The problem might be that your YoLink Hub is only able to connect using a 2.4 GHz WiFi band. Many dual band...
Eero router users can temporarily turn off the 5 GHz band, which may be needed to connect your SpeakerHub to your WiFi. https://support.eero.com/hc/en-us/articles/360049983772-How-Do-I-Temporarily-Hide-the-5GHz-Band-on-My-eero-Network-