User`s guide

MDS 05-2806A01, Rev. E.1 MDS iNET 900 Series User’s Guide 115
Table 4-2. Basic Troubleshooting Using the Management System
Symptom Problem/Recommended System Checks
Remote does not
associate; stays in
HOPSYNC
a. Verify the AP has sufficiently large number in the “Max
Remotes” parameter of the Network Configuration Menu.
b. Verify the correct MAC address is listed in the “Approved
Remotes List” or “Approved Access Points List” of the
Security Configuration menu.
Serial data is slow
with UDP multicast
traffic
Change Beacon Period to FAST.
(Radio Configuration Menu)
Cannot access the
MS through COM1
a. Connect to unit via Telnet or Web browser
b. Disable the serial mode for COM1
(Serial Gateway Configuration>>Com1 Serial Data
Port>>Status>>Disabled)
or, if you know the unit’s data configuration:
a. Connect to COM 1 via a terminal set to VT100 and the
port’s data baud rate.
b. Type +++
c. Change the terminal’s baud rate to match the transceiver’s
Console Baud Rate.
d. Type +++
Display on
terminal/Telnet
screen garbled
Verify the terminal/terminal emulator or Telnet application is
set to VT100
Cannot pass IP
data to WAN.
a. Verify your IP settings.
b. Use the PING command to test communication with the
transceivers in the local radio system.
c. If successful with local PING, attempt to PING an IP unit
attached to a transceiver.
d. If successful with the LAN PINGs, try connecting to a
known unit in the WAN.
Wireless Retries
too high.
Possible Radio Frequency Interference—
a. If omnidirectional antennas are used, consider changing to
directional antennas. This will often limit interference to
and from other stations.
b. Try skipping some zones where persistent interference is
known or suspected.
c. The installation of a filter in the antenna feedline may be
necessary. Consult the factory for further assistance.
Password
forgotten.
a. Connect to the transceiver using a terminal through the
COM1 Port.
b. Obtain a password-resetting Authorization Key from your
factory representative.
c. Enter the Authorization Key at the login prompt as a
password.
Packet Repeat
Mode troubles
(extra characters in
data, data not
delivered)
Verify that all radios in the network have their Packet
Redundancy Mode set to the same selection (Single Packet
vs. Packet Repeat Mode).