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Epson LQ-590IIN Network Guide - Page 58

Solving Problems, Messages, Cause/What to do, Cause, What to

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Network Guide Solving Problems Messages Cause/What to do Invalid file. Cause: You are not importing a certificate file in X509 format. What to do: For more information on the certificate, see the website of the certificate authority. Cause: The file you have imported is too large. The maximum file size is 5KB. What to do: If you select the correct file, the certificate might be corrupted or fabricated. Cause: The chain contained in the certificate is invalid. What to do: For more information on the certificate, see the website of the certificate authority. Cannot use the Server Certificates that include more than three CA certificates. Cause: The certificate file in PKCS#12 format contains more than 3 CA certificates. What to do: Import each certificate as converting from PKCS#12 format to PEM format, or import the certificate file in PKCS#12 format that contains up to 2 CA certificates. The certificate has expired. Check if the certificate is valid, or check the date and time on your printer. Cause: The certificate is out of date. What to do: ❏ If the certificate is out of date, obtain and import the new certificate. ❏ If the certificate is not out of date, make sure the printer's date and time are set correctly. Private key is required. Cause: There is no paired private key with the certificate. What to do: ❏ If the certificate is the PEM/DER format and it is obtained from a CSR using a computer, specify the private key file. ❏ If the certificate is the PKCS#12 format and it is obtained from a CSR using a computer, create a file that contains the private key. Cause: You have re-imported the PEM/DER certificate obtained from a CSR using Web Config. What to do: If the certificate is the PEM/DER format and it is obtained from a CSR using Web Config, you can only import it once. Setup failed. Cause: Cannot finish the configuration because the communication between the printer and computer failed or the file cannot be read by some errors. What to do: After checking the specified file and communication, import the file again. 58

Section	Page
Contents	2
Copyrights	4
Trademarks	5
About this Manual	6
Marks and Symbols	6
Descriptions Used in this Manual	6
Operating System References	6
Introduction	8
Manual Component	8
Definitions of Terms Used in this Guide	8
Preparation	10
Flow of the Printer Settings	10
Introduction of Printer Connection	10
Server / Client Connection Settings	11
Peer to Peer Connection Settings	11
Preparing Connection to a Network	11
Gathering Information on the Connection Setting	11
Printer Specifications	12
Type of IP Address Assignment	12
Method for Setting Network Connection	12
Installing EpsonNet Config	13
Running EpsonNet Config	13
Connection	14
Connecting to the Network	14
Connecting to LAN	14
Assigning an IP Address Using EpsonNet Config	14
Connecting to the Network Using the Installer	18
Function Settings	20
Web Config (Web Page for Device)	20
About Web Config	20
Accessing Web Config	20
Entering IP address	20
Using the Print Functions	21
Requirement for Printing over a Network	21
Setting of the Printer Driver Using Server / Client Connection	21
Setting Up Standard TCP/IP Ports - Windows	21
Sharing the Printer	25
Installing Additional Drivers	25
Using the Shared Printer	26
Printer Driver Settings for Peer to Peer Connection	26
Setting the Printer Driver	26
Security Settings	28
Security Settings and Prevention of Danger	28
Security Feature Settings	29
Configuring the Administrator Password	29
Configuring the Administrator Password Using Web Config	29
Controlling Protocols and Services	30
Controlling Protocols	30
Protocols you can Enable or Disable	31
Protocol Setting Items	32
SSL/TLS Communication with the Printer	34
About Digital Certification	34
Obtaining and Importing a CA-signed Certificate	35
Obtaining a CA-signed Certificate	35
Importing a CA-signed Certificate	36
Deleting a CA-signed Certificate	38
Updating a Self-signed Certificate	38
Encrypted Communication Using IPsec/IP Filtering	39
About IPsec/IP Filtering	39
Configuring Default Policy	40
Default Policy Setting Items	40
Configuring Group Policy	41
Group Policy Setting Items	42
Combination of Local Address(Printer) and Remote Address(Host) on Group Policy	44
References of Service Name on Group Policy	44
Configuration Examples of IPsec/IP Filtering	46
Using SNMPv3 Protocol	47
About SNMPv3	47
Configuring SNMPv3	48
SNMPv3 Setting Items	48
Solving Problems	50
Checking the Log for Server and Network Device	50
Printing a Network Status Sheet	50
Initializing the Network Settings	50
Restoring the Network Settings from the Printer	50
Restoring the Network Settings using EpsonNet Config	50
Checking the Communication between Devices and Computers	51
Checking the Connection Using a Ping Command	51
Problems Using Network Software	52
Cannot Access Web Config	52
Model name and/or IP address are not displayed on EpsonNet Config	53
Solving Problems for Advanced Security	53
Restoring the Security Settings	53
Disabling the Security Function from the Printer	53
Restoring the Security Function Using Web Config	54
Disabling IPsec/IP Filtering Using Web Config	54
Problems Using Network Security Features	54
Forgot a Pre–shared Key	54
Cannot Communicate with IPsec Communication	54
Cannot Communicate Suddenly	55
Cannot Create the Secure IPP Printing Port	55
Cannot Connect After Configuring IPsec/IP Filtering	55
Problems on Using a Digital Certificate	56
Cannot Import a CA-signed Certificate	56
Cannot Update a Self-Signed Certificate	56
Cannot Create a CSR	57
Warning Relating to a Digital Certificate Appears	57
Delete a CA-signed Certificate by Mistake	59
Appendix	60
Introduction of Network Software	60
Epson Device Admin	60
Running Epson Device Admin (Windows only)	60
EpsonNet Print	60

Match case Limit results 1 per page

Messages

Cause/What to do

Invalid file.

Cause:

You are not importing a certificate file in X509 format.

What to do:

For more information on the certificate, see the website of the certificate authority.

Cause:

The file you have imported is too large. The maximum file size is 5KB.

What to do:

If you select the correct file, the certificate might be corrupted or fabricated.

Cause:

The chain contained in the certificate is invalid.

What to do:

For more information on the certificate, see the website of the certificate authority.

Cannot use the Server Certificates that

include more than three CA

certificates.

Cause:

The certificate file in PKCS#12 format contains more than 3 CA certificates.

What to do:

Import each certificate as converting from PKCS#12 format to PEM format, or import

the certificate file in PKCS#12 format that contains up to 2 CA certificates.

The certificate has expired. Check if the

certificate is valid, or check the date

and time on your printer.

Cause:

The certificate is out of date.

What to do:

❏

If the certificate is out of date, obtain and import the new certificate.

❏

If the certificate is not out of date, make sure the printer's date and time are set

correctly.

Private key is required.

Cause:

There is no paired private key with the certificate.

What to do:

❏

If the certificate is the PEM/DER format and it is obtained from a CSR using a

computer, specify the private key file.

❏

If the certificate is the PKCS#12 format and it is obtained from a CSR using a

computer, create a file that contains the private key.

Cause:

You have re-imported the PEM/DER certificate obtained from a CSR using Web Config.

What to do:

If the certificate is the PEM/DER format and it is obtained from a CSR using Web Config,

you can only import it once.

Setup failed.

Cause:

Cannot finish the configuration because the communication between the printer and

computer failed or the file cannot be read by some errors.

What to do:

After checking the specified file and communication, import the file again.

Network Guide

Solving Problems