@Jason1966 Hi, welcome to the community. Could you please test whether the beta firmware here helps: https://community.tp-link.com/en/home/forum/topic/843896 Best regards.

@Jimy123 Hi, thank you very much for the update. The case has been forwarded to the senior engineer for further assistance. Please check your email later for more suggestions. Best regards.

@jlambert Hi, nice to see you again. Is the topology like this: I look forward to seeing how the 1.1.99 firmware works. Best regards.

@moraphi Hi, thank you very much for the update. I didn't find any App feedback under the new email account. It might not be summited successully. Would you mind referring to this link and helping me...

@Serge_K Hi, thank you very much for the feedback. Deco M4_V2_1.8.2 doesn't support the Guest Network with a captive portal. It would need to get several further firmware upgrades. Best regards.

@Gabi-Argy Hi, welcome to the community. It is recommended to install the 1.1.99 firmware here to see whether it makes any difference: Firmware 1.1.99 for Deco BE25 Adds Channel Selection, DoH/DoT &...