b36419477c
net.dhcp = false applies ip/mask/gw/dns on link up (DHCP client stopped). PTP/TX/SAP sockets are bound to the address, so a changed IP setup reboots the device; with DHCP on, the static fields (UI fills them with the lease) don't count as a change. Validation: contiguous netmask, not the network or broadcast address, gateway in the subnet. The page follows the device to the new address after saving. Checked: DHCP -> static .245 (PTP, TX, SAP, SDP origin, mDNS on the new address) -> DHCP. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>