Appendix A Log Descriptions
ZyWALL USG 50 User’s Guide
801
Get server response 
has failed.
The device sent packets to the server, but did not receive a 
response. The root cause may be that the connection is 
abnormal.
Expiration daily-
check has failed:%s.
The daily check for service expiration failed, an error message 
returned by the MyZyXEL.com server will be appended to this 
log.
%s: error message returned by myZyXEL.com server
Do expiration daily-
check has failed. 
Because of lack must 
fields.
The device received an incomplete response to the daily 
service expiration check and the packets caused a parsing 
error for the device.
Server setting error.
The device could not retrieve the server's IP address or FQDN 
from local.
Do expiration daily-
check has failed.
The daily check for service expiration failed.
Do expiration daily-
check has succeeded.
The daily check for service expiration was successful.
Expiration daily-
check will trigger PPP 
interface. Do self-
check.
Before the device sends an expiration day check packet, it 
needs to check whether or not it will trigger a PPP connection.
System bootup. Do 
expiration daily-
check.
The device processes a service expiration day check 
immediately after it starts up.
After register. Do 
expiration daily-
check immediately.
The device processes a service expiration day check 
immediately after device registration.
Time is up. Do 
expiration daily-
check.
The processes a service expiration day check every 24 hrs.
Read MyZyXEL.com 
storage has failed.
Read data from EEPROM has failed.
Open /proc/MRD has 
failed.
This error message is shown when getting MAC address.
IDP service has 
expired.
The IDP service period has expired. The device can find this 
through either a service expiration day check via 
MyZyXEL.com server or by the device’s own count.
Content-Filter 
service has expired.
The content filtering service period has expired. The device 
can find this through either a service expiration day check via 
MyZyXEL.com server or by the device’s own count.
Unknown TLS/SSL 
version: %d.
The device only supports SSLv3 protocol. %d: SSL version 
assigned by client.
Load trusted root 
certificates has 
failed.
The device needs to load the trusted root certificate before 
the device can verify a server's certificate. This log displays if 
the device failed to load it.
Certificate has 
expired.
Verification of a server’s certificate failed because it has 
expired.
Table 259 
myZyXEL.com Logs (continued)
LOG MESSAGE
DESCRIPTION