Troubleshooting, Led indicators, Firewall – PROLiNK PPS2104N User Manual User Manual
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7. Troubleshooting
This chapter provides useful information to help you resolve difficulties that you may experience with your Server.
Fault symptoms, possible causes, and remedial actions are provided within a quick reference table. This Server’s USB
ports only support MFPs, printers, scanners and mass storage.
7.1. LED Indicators
Indicators
Behavior
Description
Power
On
Power On
Off
Power off/System error
Link
On
Network connected
Off
No physical connection to network
Status
Blinking
Activity on network
Off
No activity on network
USB
On
USB device connected
Blinking
Connected USB device error
Off
No physical connection to USB device
7.2. Firewall
If firewall software has been installed on your PC, it may block the communication between the PC and the
ShareHub Device Servers so that the ShareHub Device Servers cannot work properly. To solve this problem,
either disable the firewall or configure the firewall to allow the following TCP and UDP ports:
7303, 7305, 20005, 30201, 30202, 30203