Cisco Cisco Digital Media Player 4300G 安装指南

Is the splash screen disabled? If not, you should see it on the attached presentation system soon after you start a DMP. 
The factory-default duration is 30 seconds. However, it might be much less in your case when anyone in your organization has 
changed this user-configurable setting. 

If your DMP model has a power button, have you turned it On? 

Is the AC adapter plug seated properly in the electrical outlet? 

Is the power cord also attached securely to the DC power supply on your DMP? 

Is the electrical outlet itself working correctly?

Compare what you see to the 

Is the DMP is in its production network (or testbed)? 

Is the DMP connected to a working presentation system? 

Does the splash screen show any other IP address than you expect?

Can you ping the last-known IP address for the DMP?

Can you also ping any different IP address that the splash screen might have shown instead?

If you assigned a static IP address to your DMP but its splash screen reports a different 
address, you might not have saved your work in DMPDM. See the 

Has the DHCP address assignment changed for the DMP? 

Are DHCP leases in your network allowed to expire?

When your browser loads the last-known IP address for the DMP, does DMPDM start?