Some newly installed wireless access points are not broadcasting.

The most likely cause is that the PoE power budget has been exceeded. Wireless access points commonly receive power through Power over Ethernet. If newly installed APs are not broadcasting at all, one of the first things to verify is whether the switch has enough available PoE capacity to power them. A switch can have enough physical ports available but still lack sufficient PoE wattage. When the total PoE budget is exhausted, some APs may fail to power on, partially boot, reboot repeatedly, or never begin broadcasting an SSID.

The CompTIA Network+ N10-009 objectives include network devices, wireless infrastructure, PoE, power budgets, and troubleshooting physical connectivity. Wireless APs must have both data connectivity and sufficient power before they can operate normally. An improper VLAN assignment could prevent clients from reaching network resources or receiving DHCP addresses, but the AP would usually still power on and broadcast. Limited signal strength would affect coverage, not prevent broadcasting entirely. An uplink transceiver issue applies more to fiber or modular uplink connections and is less likely for newly installed APs. Therefore, the best answer is PoE power budget exceeded.