@Mdorta Have you tried changing the "update interval" settings under DynDNS in Deco app? If that doesn't change anything, I think you need to open another thread requesting for lowering the TTL

@Dhiman1994 Deco E4 (V4) already supports it, no idea about other hardware versions

@oakmontoz You can make edits to your own thread, no need to make a separate comment. And I think that settings create a firewall rule

@Vassilis Redmi A2 doesn't support 5 Ghz. Try setting your network to 2.4 ghz only & see if the phone connects then

@MarkyR74 Don't take ISP's advice when setting up ipv6

@Iphone_15 For M9 plus, use the update tool: How to Update the Firmware of Deco (Method 3)