I have a SLM224P switch but none of the 12 PoE ports is working.I can connect ethernet devices without problem, but power is not send to PoE Injector.Here is a screenshot of the settings of one port:Any suggsetions on how to make PoE work?

I am trying to upgrade the firmware of SLM224P from 1.0 to 2.0 but it is not possible. I am getting the following error:Upgrade/Backup Firmware/LanguageTransfer Method:via TFTPvia HTTPSave Action:UpgradeBackupFile Type:Firmware ImageBoot CodeLanguage...