Troubleshooting
Symptom | Cause and Measure | Reference Page | |||||||||||||
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Cannot turn the power on. | zzIs the power cable connected to the outlet properly? | P. 11 | |||||||||||||
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| zzDid you use a LAN cable of category 5 or higher for connecting to the LAN | P. 14 | |||||||||||||
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| zzIs the [LINK] LED of the LAN connector lit? |
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| If it is not lit, the unit is not connected to the LAN properly or the network of |
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| the connection destination is not operating properly. |
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| Check the LAN cable for a bad electrical contact and make sure the |
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| connections are correct. | P. 14 | |||||||||||||
| [LINK] LED | ||||||||||||||
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| zzIs the power on? | P. 13 | |||||||||||||
| If the POWER lamp of this unit is off, the power of this unit is not turned on. | ||||||||||||||
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| zzIs a valid IP address set on the unit? | <Operations and | |||||||||||||
| Settings> | ||||||||||||||
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| P. 23 | |
Cannot access the Web |
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zzIs the wrong IP address being accessed? | <Operations and | ||||||||||||||
settings screen. | |||||||||||||||
Display the NETWORK screen from the MAINTENANCE menu, and then | Settings> | ||||||||||||||
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| check the IP address. | P. 23 | |||||||||||||
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| zzIs the wrong number set for the port number? |
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| For the HTTP port number, use a port number other than the following port | <Operations and | |||||||||||||
| numbers that are used by the unit. | ||||||||||||||
| Settings> | ||||||||||||||
| 20/21 (FTP), 25 (SMTP), 42/53 (DNS), 69 (tFTP), 23 (telnet), 110/995 (POP3), | ||||||||||||||
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| 123 (NTP), 67/68 (BOOTP/DHCP), 10669/10670 (BOOTP), and 161/162 | ||||||||||||||
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| zzIs the set IP address the same as that of another device? |
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| Is the set address and network subnet for the installation location |
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| inconsistent? |
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| [When the unit and computer are connected within the same subnet] | ||||||||||||||
| Are the IP addresses of the unit and computer set to a common subnet? Is |
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| the Web browser set to “Use a proxy server”? |
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| When accessing the unit in the same subnet, we recommend you set the |
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| address of the unit to “Don’t use proxy”. |
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| [When the unit and computer are connected to different subnets] | <Operations and | |||||||||||||
| Settings> | ||||||||||||||
| Is the wrong value set for the default gateway on the unit? | ||||||||||||||
| P. 23 | ||||||||||||||
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| zzPress the [F5] key on the computer keyboard to request the setting values | ||||||||||||||
| to be obtained. | ||||||||||||||
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| zzDelete the temporary Internet files as described below. |
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| (1)Select [Tools] → [Internet Options] in Internet Explorer. | ||||||||||||||
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| (2)Click the [Delete] button under [Browsing history]. |
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The setting values of the | zzIf [Check for newer versions of stored pages] is not set to [Every time I |
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Web settings screen are not | visit the webpage] in the temporary Internet file settings, the Web settings |
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updated properly or are not | screen may not be displayed properly. |
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displayed. | Perform the procedure below. | ||||||||||||||
(1)Select [Tools] → [Internet Options] in Internet Explorer. | |||||||||||||||
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| (2)Click the [Settings] button under [Browsing history], and then select |
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| [Every time I visit the webpage] under [Check for newer versions of |
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| stored pages]. |
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| zzA port of the unit may be being filtered by, for example, the firewall function |
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| of the antivirus software. | ||||||||||||||
| Change the HTTP port number of the unit to a port number that is not filtered. |
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16
