User's Manual Part 2
Table Of Contents
- Troubleshooting
- Using Discovery
- IP Addressing
- Technical Specifications
- Safety Information
- End User Software License Agreement
- ISP Information
- Glossary
- 802.11b
- 802.11g
- 10BASE-T
- 100BASE-TX
- Access Point
- Ad Hoc mode
- Auto-negotiation
- Bandwidth
- Category 3 Cables
- Category 5 Cables
- Channel
- Client
- DHCP
- DNS Server Address
- DSL modem
- Encryption
- ESSID
- Ethernet
- Ethernet Address
- Fast Ethernet
- Firewall
- Full Duplex
- Router
- Half Duplex
- Hub
- IEEE
- IETF
- Infrastructure mode
- IP
- IP Address
- ISP
- LAN
- MAC
- MAC Address
- NAT
- Network
- Network Interface Card (NIC)
- Protocol
- PPPoE
- PPTP
- RJ-45
- Server
- SSID
- Subnet Address
- Subnet mask
- Subnets
- Switch
- TCP/IP
- Traffic
- universal plug and play
- URL Filter
- WAN
- WECA
- WEP
- Wi-Fi
- Wireless Client
- Wireless LAN Service Area
- Wizard
- WLAN
- WPA
- Glossary
- Regulatory Notices for the 11g Cable/DSL Router
88 CHAPTER 6: TROUBLESHOOTING
Alternatively, quote the part number for your region:
Table 3 Power Adapter Part Numbers
Alert LED The Alert LED will flash when the Router unit is first powered up while
the system software checks the hardware for proper operation. Once the
Router has started normal operation, the Alert LED will go out.
■ If the Alert LED does not go out following start up, but illuminates
continuously, this indicates that the software has detected a possible
fault with the hardware. Remove power from the Router, wait 10
seconds and then re-apply power. If the Alert LED comes on
continuously again, then a fault has been detected. Locate the copy of
the Router software on the accompanying CD-ROM or 3Com web site
(
http://www.3com.com) and upload it to the Router to see if this
clears the fault (refer to “Recovering from Corrupted Software”
below). If this does not fix the problem, contact your supplier for
further advice.
■ During normal operation, you may notice the Alert LED lighting briefly
from time to time. This indicates that the Router has detected a hacker
attack from the Internet and has prevented it from harming your
network. You need take no specific action on this, unless you decide
that these attacks are happening frequently in which case you may
wish to discuss this with your ISP. The Router logs such attacks, and
this information is available through the Status and Logs screens.
Recovering from
Corrupted Software
If the Alert LED remains permanently on following power-up, it is possible
that the system software has become corrupted. In this condition, the
Router will enter a “recovery” state; DHCP is disabled, and the LAN IP
Part Number Region
3C16740A US and Canada
3C16741A UK
3C16742A Europe and Middle East
3C16743A Japan
3C16744A Australasia (except Japan and Korea)
3C16745A South Africa
3C16747A Korea
3C16748A Argentina