Error diagnosis

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OperationError diagnosis

 

This chapter deals with the causes and fixing of errors and faulty or wrong settings detected during the network diagnosis in the start phase, which result in a failed connection.

 

Cause of fault: network cable

Fault status LEDs

Cause

Remedy

Section Network diagnosis

Network cable (copper or optical fiber) is not connected to the Thin Client

Connect network cable to the Thin Client

In case of copper cable:

Network cable is incorrectly wired

(Tx and Rx pair mixed up)

(Both Tx or Rx wires are not connected)

Check network connection
Check pin allocation
Wire cable correctly
Cable wires according to EIA/TIA-T568 A or B or Profinet Standard

In case of optical fiber

Optical fiber cables are mixed up

Check network connection
Switch optical fiber cables

In case of optical fiber

SK-KJ17xx defect or without potential

Supply power to SK-KJ17xx
Replace SK-KJ17xx

Network cable is not connected to the counter station (computer / KVM-box/switch)

Connect network cable to the counter station (computer / KVM-box/switch)

Network cable / patch cable (copper or optical fiber) is defect

Test network cable / patch cable
Replace network cable / patch cable

 

Cause of error Local IP address

Fault status LEDs

Cause

Remedy

Section Network diagnosis

Internal fault when allocating the local IP address of the Thin Client

Switch the Thin Client off and then on again.

 

Cause of fault Ping

Fault status LEDs

Cause

Remedy

Section Network diagnosis

Counter station (computer / KVM-box / switch) cannot be contacted

Switch on counter station
Check whether counter station is supplied with power
Check connection between switch and counter station
In case of optical fiber
Check whether network interface of SK-KJ17xx is connected

In case of copper cable:

Not all network cables correctly wired

(single wire missing)

(+ and - wire of the Tx or Rx cable are switched)

Check network connection
Check pin allocation
Wire cable correctly
Cable wires according to EIA/TIA-T585 A or B or Profinet Standard

In case of optical fiber

Transmitter cable incorrectly connected

Connect transmitter cable correctly
Check transmitter cable (plug / broken fibre)

If using a switch:

No connection between switch and computer or KVM-box

Check connection between switch and counter station
In case of optical fiber
Check whether network interface of SK-KJ17xx is connected

Firewall is blocking ping requests to the counter station.

Check firewall settings on counter station.

Incorrect IP address configuration of the Thin Client or the KVM-box.

Check that target address matches the counter station.
Correct the IP address configuration of the stations.

 

Fehlerursache IP Adressenkonflikt

Fault status LEDs

Cause

Remedy

Section Network diagnosis

A different network station has the same IP address as the Thin Client

Check the IP addresses of the network stations
Allocate unique IP addresses to the network stations

 

Cause of fault Remote Station

Fault status LEDs

Cause

Remedy

Section Network diagnosis

Counter station cannot be reached with the current IP settings (without gateway)

Match IP settings to the counter station (must be within the same sub-net)
Define gateway address

IP settings of the counter station are in a different sub-net

In case of automatic IP configuration:

DHCP server not available in network

Check availability of DHCP server
Enable DHCP server function

In case of symbolic target address (host address):

Name of counter station cannot be unscrambled

(DNS server unavailable)

(DNS service not started)

(Symbolic name not in DNS table)

Contact network administrator
Provide DNS server
Start DNS service
Enter symbolic name into table

 

Cause of fault: RDP/VNC server

Fault status LEDs

Cause

Remedy

Section Network diagnosis

No Remote Server Service of the expected type (RDP/VNC) is active at the counter station.

Instal correct Remote Server Service
Activate correct Remote Server Service
Adjust configuration of Remote Server Service

Firewall is blocking connection to remote server

Check firewall settings on counter station.

In case of RDP:

Settings / policies in the counter station prevent connection

Check RDP settings / policies on counter station.
Correct RDP settings / policies on counter station.

In case of VNC:

Settings of the VNC server prevent connection

Check VNC settings on counter station.
Correct VNC settings

In case of KVM-box

The host computer's digital video signal (DVI) is incompatible with the KVM-box

Use analogue (VGA) video connection
Replace graphics card of the host PC
Update graphics driver of the host PC

For NetC@p:

Settings of the NetC@p server prevent connection

Check VNC settings on counter station.
Correct VNC settings

 

 

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