Epson LQ-780N Network Manual page 53

Network Guide
Security Methods
Encryption Algorithm
Hash Algorithm
Key exchange Algorithm
*Available method may vary by models.
Related Information
"Encrypted Communication Using IPsec/IP Filtering" on page 38
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Cannot Communicate Suddenly
Is the printer's IP address invalid or has it changed?
Disable IPsec using the printer's control panel.
If the DHCP is out of date, rebooting or the IPv6 address is out of date or has not been obtained, then the IP
address registered for the printer's Web Config (Network Security Settings > IPsec/IP Filtering > Basic > Group
Policy > Local Address(Printer)) may not be found. Use a static IP address.
Is the computer's IP address invalid or has it changed?
Disable IPsec using the printer's control panel.
If the DHCP is out of date, rebooting or the IPv6 address is out of date or has not been obtained, then the IP
address registered for the printer's Web Config (Network Security Settings > IPsec/IP Filtering > Basic > Group
Policy > Remote Address(Host)) may not be found. Use a static IP address.
Related Information
"Accessing Web Config" on page 20
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"Encrypted Communication Using IPsec/IP Filtering" on page 38
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Cannot Create the Secure IPP Printing Port
Is the correct certificate specified as the server certificate for SSL/TLS communication?
If the specified certificate is not correct, creating a port may fail. Make sure you are using the correct certificate.
Is a CA certificate imported to the computer accessing the printer?
If a CA certificate is not imported to the computer, creating a port may fail. Make sure a CA certificate is imported.
Related Information
"Accessing Web Config" on page 20
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Cannot Connect After Configuring IPsec/IP Filtering
The set value may be incorrect.
Solving Problems
Algorithms
AES-CBC 128,AES-CBC 192,AES-CBC 256,3DES-CBC,DES-CBC
SHA-1,SHA2-256,SHA2-384,SHA2-512,MD5
Diffi e-Hellman Group2,Diffi e-Hellman Group1*,Diffi e-Hellman Group14*
Elliptic Curve Diffi e- Hellman P-256*,Elliptic Curve Diffi e-Hellman P-384*
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