Hitachi HF-W2000 58 Instruction Manual page 224

(9) The equipment is unable to connect to the network.
Possible cause
There is an error in the settings of the LAN or the network device (the hub or another device), or there is a
problem with the cable connection.
Action
1. Review the network settings by referring to the instructions in 2.8 Setting Up the LAN Interface.
2. Disconnect the LAN cable and securely reconnect it to ensure a stable connection.
3. Make sure that the LAN cable is connected to the correct port.
4. Replace the LAN cable with another LAN cable.
5. When you use the network device, check the following items:
i) Make sure that the power of the network device is on.
ii) Turn on the power of the network device before turning on the power of this equipment.
iii) Replace the network device with another to check whether the latter works.
(10) The network connection is unstable, or the connection speed is slow.
Possible cause
There is an error in the settings of the LAN or the network device, or there is a problem with the cable
connection.
Action
1. Review the network settings by referring to the instructions in 2.8 Setting Up the LAN Interface.
2. Disconnect the LAN cable and securely reconnect it to ensure a stable connection.
3. Make sure that the LAN cable is connected to the correct port.
4. Replace the LAN cable with another LAN cable.
5. When you use the network device, check the following items:
i) Turn on the power of the network device before turning on the power of this equipment.
ii) Replace the network device with another to check whether the latter works.
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9. TROUBLESHOOTING