User's Manual Part 2

Troubleshooting MeshMAX 5054 Series User Guide
Troubleshooting Concepts for Mesh and Access Point Module
233
Troubleshooting Concepts
The following list identifies important troubleshooting concepts and topics. The most common initialization and installation
problems relate to IP addressing. For example, you must have valid IP addresses for both the AP and the management
computer to access the unit’s HTTP interface.
• IP Address management is fundamental.
• Factory default units are set for “Dynamic” (DHCP) IP Address assignment. The default IP address for the AP is
169.254.128.132 if your network does not have a DHCP server. If you connect the AP to a network with an active
DHCP server, then use ScanTool to locate the IP address of your unit. If a DHCP server is not active on your subnet,
then use ScanTool to assign a static IP address to the unit.
• The Trivial File Transfer Protocol (TFTP) provides a means to download and upload files. These files include
the AP Image (executable program) and configuration files.
• If the AP password is lost or forgotten, you will need to reset to default values. The Soft Reset to Factory
Default or Hard Reset to Factory Default procedures reset the configuration, but do not change the current AP Image.
• The AP Supports a Command Line Interface (CLI). If you are having trouble locating your AP on the network,
connect to the unit directly using the serial interface and see CLI for Mesh and Access Point Module for CLI command
syntax and parameter names.
• ScanTool does not work over routers. You must be connected to the same subnet/physical LAN segment to use
ScanTool. Note that ScanTool also works over the wireless interface; you can run it on a wireless client connected to
the target AP or an AP connected to the same LAN segment/subnet.
• If all else fails… Use the Forced Reload procedure to erase the current AP Image and configuration file and then
download a new image.
Symptoms and Solutions
Connectivity Issues
Connectivity issues include any problem that prevents you from powering up or connecting to the AP.
AP Unit Will Not Boot - No LED Activity
1. Make sure your power source is operating.
2. Make sure all cables are connected to the AP correctly.
3. If you are using PoE, make sure you are using a Category 5, foiled, twisted pair cable to power the AP.
Serial Link Does Not Work
1. Make sure you are using a standard, straight-through, 9-pin serial cable.
2. Double-check the physical network connections.
3. Make sure your PC terminal program (such as HyperTerminal) is active and configured to the following values:
– Com Port: (COM1, COM2, etc. depending on your computer);
– Baud rate: 9600; Data bits: 8; Stop bits: 1; Flow Control: None; Parity: None;
– Line Feeds with Carriage Returns
(In HyperTerminal select: File > Properties > Settings > ASCII Setup > Send Line Ends with Line Feeds)
Basic Software Setup and Configuration Problems
Lost AP, Telnet, or SNMP Password
1. Perform the Soft Reset to Factory Default in this guide. This procedure resets system and network parameters, but
does not affect the AP Image. The default AP HTTP, Telnet, and SNMP passwords are all public.