Zyxel IES-5106 [1098/1156] I cannot telnet into the msc

Zyxel IES-5106 [1098/1156] I cannot telnet into the msc
Chapter 40 Troubleshooting
Management Switch Card User’s Guide
1098
I cannot use FTP to upload / download the configuration file. / I cannot use FTP to upload
new firmware. (edit as needed)
See the troubleshooting suggestions for I cannot see or access the Login screen in the Web
Configurator. Ignore the suggestions about your browser.
The SNMP manager server cannot get information from the MSC.
1 Ping the MSC from the SNMP server. If you cannot, check the cable, connections and IP
configuration.
2 Check to see that the community (or trusted host) in the MSC matches the SNMP server’s
community.
3 Make sure that your computer’s IP address matches a configured trusted host IP address (if
configured).
I cannot telnet into the MSC.
1 Make sure that a telnet session(s) is not already operating. The MSC only accepts one telnet
session at a time (or a total of four Telnet and SSH sessions with multiple login enabled).
2 Make sure that your computer’s IP address matches a configured secured client IP address (if
configured). The MSC immediately disconnects the telnet session if secured host IP addresses are
configured and your computer’s IP address does not match one of them.
3 Make sure that you have not disabled the Telnet service or changed the server port number that the
MSC uses for Telnet.
4 Ping the MSC from your computer.
5 If you are able to ping the MSC but are still unable to telnet, contact the distributor.
6 If you cannot ping the MSC, check the cable, connections and IP configuration.
7 See the troubleshooting suggestions for I cannot see or access the Login screen in the Web
Configurator. Ignore the suggestions about your browser.
I cannot use the console port to access the MSC.

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