@Shogo I just set 8.8.8.8 for testing purpose. It's solved system time issue, but it's not solved update issue. Just for your information. (Set 8.8.8.8 for primary DNS address in DHCP configuration....

@David-TP Yes, connection type is v6 plus (ipv4 over ipv6). The service provider is GMO. I don't want to set WAN DNS to 8.8.8.8, so I hope it will be fixed soon.

@Shogo I tried to downgrade BE85 firmware from V2_1.0.13 Build 20230927 to V2_1.0.11 Build 20230830. After downgrade, it worked fine. I could show the firmware upgrade confirmation via mobile app,...

@benisfroms Thank you for your suggestion. But it's hard for me to reset and re-configure because I need to re-connect all of my devices to wifi, IP reservation settings and so on. (I switched main...

@David-TP Thank you very much for your instruction. I could update firmware manually via Web. The issue still not resolved yet. I usually use mobile app, and it shows an error. Let me attach the...

My main Deco is BE85 and configure mesh network with another BE85 and XE200. I used to be able to update Deco via iPhone application, but recently (maybe for 2 weeks to 1 month?) it continuously...