Epson TM-P20 Technical Reference Manual page 68

 [Roaming] and [AP Density] in the [Wireless] menu can be set only when the Wi-Fi model's
 [Wellknown Community Name] in the [SNMP] menu can be set only when the Wi-Fi model's
 You can also select the following functions from the optional configuration menu.
3
After adjusting the parameters according to the menus, click the [Send] button to
send the changes to the printer.
4
On the Web page displayed after you send the changes, click the [Reset] button to
confirm that the changes have been applied.
When the IP address, SSID, and so on are changed, you need to change the settings on the host PC
and the access point so that they match the printer settings.
Certificate Import
Enable the time server when using a certificate.
Make the following settings in the Authentication - Certificate Import menu.
1
Set the file type of certificate.
2
Specify the certificate file to import.
3
If the file type of certificate is PKCS#12, enter the password.
4
Click [Import].
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firmware is version 1.17 or later.
firmware is version 1.19 or later.
The initial value is enabled.
If you disable this setting, there are the following restrictions.
 TM drivers
The battery status cannot be acquired.
Port opening is extended by approximately 2 seconds.
 Deployment Tool
The model name cannot be acquired.
 EpsonNet Config/Monitoring Tool
The model name, status, and setting information cannot be acquired.
The setting cannot be changed.
 Administrator Information: Use to register administrator name and the printer location.
 Reset: Use to reset the interface card or restore the default settings.
 Password: Use to change the password.