Network Troubleshooting; Connection Error Occurs With The Web Browser - Oki C810 Maintenance Manual

Oki Data CONFIDENTIAL

7.5.4 network troubleshooting

(1) Print cannot be activated from Utilities.
Check item
(1) Check the LINK lamp
Check if the LINK Check if the HUB and a printer are connected
lamp (green) is normally. (Check that the network cable is
illuminating or not. connected normally.)
Confirm that the straight network cable is being
used.
Make an attempt to change connection of the
network cable to other port of a HUB.
(2) Check the network information
Check if the network Press the Push switch of the NIC card to print
information can be the network information.
printed normally or
not.
(3) Check contents of the network information.
Confirm the IP Confirm the IP address, SUB net mask and
address, SUB net gateway address that are printed on the network
mask and gateway information.
address.
(4) Check if communication is possible or not through network
Confirm if the Ping Confirm if correct reply is returned from a printer
command can be to a PC when the PC sends the Ping to a printer.
sent or not from a
PC to a printer.
(5) Check the Utilities.
Check setting of the Check the setting items of the OKI LPR Utilities.
OKI LPR Utilities.
(6) Check the following from an OS standard port
Confirm the Set the standard LPR port of the WINDOWS
standard LPR port standard (NT, 2000, XP), and confirm if printing
of the WINDOWS can be performed or not.
standard (NT, 2000,
XP).
44015503TH Rev. 1
Action to be taken
Check work
at NG
Re-connect the
network cable
normally.
Replace the cable
with the straight
cable.
Try to change the
HUB.
Re-write the
NIC-F/W by using
Utilities.
Set the IP
address, SUB
net mask and
gateway address
normally.
Set the IP
address, SUB
net mask and
gateway address
normally.
Set the OKI LPR
Utilities setting
items correctly.
Set the standard
LPR port of
the WINDOWS
standard (NT,
2000, XP)
correctly.

7.5.4.1 Connection error occurs with the Web browser

If the printer setting page cannot be displayed by the web browser "https://<printer IP
address>", check the followings.
Establish connection by "https://<printer IP address>.
1) If the printer setting page is displayed, the followings are probable.
Take an appropriate measure by referring to the following items.
* Certificate is not created yet. (Or failed to create certificate.)
Refer to section "7.5.4.1.1 Is the certificate created?".
* Certificate has been created but the SSL/TLS setting is turned off.
Refer to section "7.5.4.1.2 Is the SSL/TLS setting set to [ON]?".
2) If the printer setting page is not displayed, the followings are probable.
* version number of the browser is old.
Refer to section "7.5.4.1.3 Check version number of the Web browser".
* Encryption strength has been set to Strong.
Refer to section "7.5.4.1.3 Check encryption strength of a printer".
* The key exchange system of a printer is not supported by the browser.
(Compatibility problem)
Refer to section "7.5.4.1.5 Check the key exchange type of the certificate".
7. TROUBLESHOOTING PROCEDURE
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