D-Link Web Smart DES-3252P Install Manual page 268

P r o bl em s
No response from the
terminal emulation soft-
ware
Response from the ter-
minal emulations soft-
ware is not readable
Self-test exceeds 15
seconds
No connection is estab-
lished and the port LED
is on
Device is in a reboot
loop
No connection and the
port LED is off
Add and Edit pages do
not open.
P os si bl e C au se
Faulty serial cable
Incorrect serial cable
Software settings
Faulty serial cable
Software settings
The device may not be
correctly installed.
Wrong network address
in the workstation
No network address set
Wrong or missing proto-
col
Faulty ethernet cable
Faulty port
Faulty module
Incorrect initial configura-
tion
Software fault
Incorrect ethernet cable,
e.g., crossed rather than
straight cable, or vice
versa, split pair (incorrect
twisting of pairs)
Fiber optical cable con-
nection is reversed
Bad cable
Wrong cable type
A pop-up blocker is
enabled.
Page 268
Appendix B Troubleshooting
So lu t io n
Replace the serial cable
Replace serial cable for a pin-to-pin straight/flat
cable
Reconfigure the emulation software connection set-
tings.
Replace the serial cable
Reconfigure the emulation software connection set-
tings.
Remove and reinstall the device. If that does not
help, consult your technical support representative.
Configure the network address in the workstation
Configure the network address in the workstation
Configure the workstation with IP protocol
Replace the cable
Replace the module
Replace the module
Erase the connection and reconfigure the port
Download and install a working or previous software
version from the console
Check pinout and replace if necessary
Change if necessary. Check Rx and Tx on fiber optic
cable
Replace with a tested cable
Verify that all 10 Mbps connections use a Cat 5 cable
Check the port LED or zoom screen in the NMS
application, and change setting if necessary
Disable pop-up blockers.