` Ubee DDW3611 Wireless Cable Modem/Advanced Wireless Gateway TWC Business Class Subscriber Wireless Configuration And Troubleshooting Guide Let’s make it easy Based on Firmware 8.6.
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REVISION HISTORY REVISION HISTORY Version Date Author Modification Comment 1.0 2011/07/11 Dan Hill 8.6.
TABLE OF CONTENTS Revision History ...................................................................................................................................................................................... 3 Key Reference Documents ................................................................................................................................................................... 6 1 Device Overview ...................................................................................
A.5 MODEM Cable Modem Event Log ......................................................................................................................... 28 A.6 Firewall Content Filter .............................................................................................................................................. 29 A.7 Firewall Event Log ...................................................................................................................................................
KEY REFERENCE DOCUMENTS KEY REFERENCE DOCUMENTS The following documents are important references for detailed information, in addition to this Troubleshooting Guide: (1) Ubee_DDW3611_Subscriber_User_Guide (2) Ubee_DDW3611_Safety_User_Manual (3) Ubee_DDW3611_Data_Sheet Contents | Ubee Interactive 2011 6
INTRODUCTION Welcome to the Ubee family of data networking products. This DDW3611 TWC Business Class Subscriber Wireless Configuration and Troubleshooting Guide applies to the DDW3611 DOCSIS 3.0 Wireless Cable Modem is an Advanced Wireless Gateway with routing, firewall, parental control, VPN, and security capabilities. NOTE: This guide is designed to provide key information and recommendations in a format for quick consumption to help reduce installation times.
1 DEVICE OVERVIEW 1.1 PHYSICAL SPECIFICATIONS , STANDARDS , FIRMWARE OPERATIONS The following are features and specifications of the DDW3611 Advanced Wireless Gateway. Interfaces Cable: F-Connector, Female LAN: 4 10/100/1000 Mbps RJ-45 Ports USB: 1 USB 2.0 HOST Port (USB port is powered, but is not activated for subscriber use. It is NOT a USB Client port, so it cannot be used for Internet access. Wireless: 802.11a/b/g/n, 2.
Security VPN Pass-Through (IPSec/L2TP/PPTP) NAT Firewall, MAC/IP/Port Filtering, Port Triggering, Port Forwarding, Parental Control 1 DMZ Host supported 252 DHCP Private IP Hosts supported by default. Stateful Packet Inspection (SPI), DoS Attack Protection WPS/ WPA/ WPA2/ WPA-PSK& 64/128-bit WEP Encryption (Default WPA-PSK) TACACS or RADIUS Authentication Wireless and Network Supports 4 SSIDs, 802.
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2 LOGIN ACCESS 2.1: LOGIN - W EB UI AND TELNET CLI Recommendation: (See DDW3611 MSO Operations Guide for detailed info.) Open Web Browser and type http://192.168.0.1 or http://192.168.100.1 in the URL Address field. You should get a Web User Interface page from the Ubee Gateway. Click Login on the left, and you will see a popup window. o Subscriber Account: Login: user Password: user You should now see a set of menu tabs at the top of the screen.
3. WIRELESS CONFIGURATION Configuring Wireless access for the DDW3611 Advanced Wireless Gateway (AWG) is quick and easy: 3.1 EASY W IRELESS CONFIGURATION : Time Warner Cable configures default values for all Wireless parameters. To start using your wireless network right away, follow these steps: Note the RF Cable MAC address on modem label (e.g,. C417FE7CD4BE). It will be used in multiple instances for configuration, connectivity and access. 3.2 RELEVANT TERMS: 1.
. 3.3 WIRELESS PRIMARY NETWORK The Primary Network option allows you to configure a variety of wireless security settings. Label Description Primary Network Wireless Primary Network status, Disabled by default for Commercial Business Class configurations. Wireless Primary Network Name (SSID) to which client devices connect. (E.g.
WEP WEP encryption is disabled by default. Recommend leaving WEP disabled since it is not secure or efficient. WPS Enabled by default, but recommend disabling it due to inconsistent wireless client implementations. 3.4 WIRELESS WIRELESS RADIO Label Description Wireless Interfaces Displays the Wireless name / MAC address. Wireless Displays the wireless radio’s status, Enabled or Disabled. Country Select UNITED STATES Output Power 802.11 Band 802.
4. WIRELESS PERFORMANCE IMPROVEMENTS 4.1: WIRELESS PERFORMANCE IMPROVEMENTS Problem: Wireless link speeds and throughput are low. Recommendation: See Ubee_DDW3611_Subscriber_User_Guide.pdf for detailed configuration information. Change the Wireless Control Channel - Your wireless gateway operates in the 2.4GHz frequency range with 11 wireless channels available (USA). Ubee AWG default is Channel 1.
4.1.1 2.4GHZ CHANNELS AND FREQUENCIES 802.11b/g/n each support 2.4GHz channels and frequencies. The chart below illustrates “20MHz” wide channels. 802.11n supports “40MHz” wide channels, which would overlap even more and reduce the overall number of channels available for use. In the USA, channels 1 – 11 are used. Non-overlapping channels are 1, 6 and 11, as shown in the chart below. Auto-channel should be selected to ensure that the channel with least interference is used.
4.1.2 5GHZ CHANNELS AND FREQUENCIES 802.11a/n each will support 5GHz channels. The table to the right shows the channel list and corresponding frequencies. Note: In the Web UI, try switching between 20MHz and 40MHz wide channels, and note which available channels disappear to make room for 40MHz channel width. (For example, channels such as 40, 48, 56, etc are not available.) Channel GHz 36 5.180 40 5.200 44 5.220 48 5.240 52 5.260 56 5.280 60 5.300 64 5.320 100 5.500 . 104 5.
4.1.3 SIGNAL ATTENUATION – RECEIVE SIGNAL STRENGTH INDICATOR (RSSI) Use the WIRELESS Access Control menu to view RSSI information for a client. From your wireless PC or MacBook, or iPad, Login to http://192.168.0.1 user/user and navigate to the Access Control menu. Refresh your screen show that the Age shows 0 indicating a current RSSI value. Move around the room and note how the RSSI value drops farther into the negative as you get farther from the Wireless Gateway, or as you go behind obstructions.
Signal Attenuation and performance drops can result when the wireless signal is absorbed by an object or material, or as the wireless client moves farther away from the Wireless Gateway. The table below illustrates rule of thumb attenuation for different kinds of materials. Material Interior drywall Cubicle wall Wood door (hollow - solid) Brick / Concrete wall Glass / Window (not tinted) Double-pane coated glass Bullet-proof glass Steel/fire exit door Human Body Free Space Tree (est) Attenuation (dB) 2.
4.1.4 SPATIAL STEAMS AND SPEEDS The Table Below (source WiFi Alliance) shows spatial streams and expected link data rates for each type of 802.11 wireless technology. Note: If you view the Status window of your Wireless Client on your PC, upon initial connection to a wireless network, you will see receive capabilities, then you will settle on transmit capabilities (1 or more transmit spatial streams), appearing as link data rate from PC to wireless access point. Some 802.
5 FIREWALL TROUBLESHOOTING TIPS 5.1: ADDING A DMZ HOST Putting a host in the DMZ (De-Militarized Zone) outside the Firewall is a quick and easy way to enable remote access and functionality of devices such as Home Routers, Web Cameras, IP Phones and VOIP Telephone Adapters, Gaming Consoles, and other such devices without having to set up more complicated Port Forwarding or Port Triggering configurations. It is very easy to set up a DMZ Host. Solution: Login to the DDW3611 Web User Interface: http://192.
6 CONNECTIVITY TROUBLESHOOTING TIPS Use the following tips for resolving general issues with the device. 6.1 LEDS ARE OFF WHEN CABLE MODEM IS POWERED ON . Check the connection between the power adapter and the cable modem. Power off cable modem and wait for 5 seconds and power on the modem again. If the problem still exists, there may have a hardware problem. 6.2 LED FOR ETHERNET PORT 1, 2, 3, OR 4 ON THE CABLE MODEM IS NOT LIT.
6.4 MY ETHERNET DEVICE WON ’T CONNECT TO THE NETWORK. If the Ethernet device is a computer, it is possible that the computer does not have DHCP client enabled, which allows it to obtain an IP address automatically and join the network. See the steps below for Windows XP: a. Click “Start”, then right-click on “My Network Places” and select “Properties”. b. Right click on “Local Area Connection” and select “Properties”. c. Scroll down and click on “Internet Protocol (TCP/IP)” and select “Properties”. d.
APPENDIX A – KEY WEB UI TROUBLESHOOTING SCREENS A.1 MODEM CABLE MODEM : INFORMATION Label Description Cable Modem The current DOCSIS standard of the device. MAC Address The unique Media Access Control (MAC) hardware address of cable modem. This is the RF Cable MAC address. Serial Number The unique manufacturer serial number of the device. Boot Code Version The boot software code version of the device. Software Version The general software version of the device.
A.2 MODEM CABLE MODEM : STATUS Label Description Acquired Downstream Channel Displays a Downstream channel that the cable modem is trying to lock to and the progress. Ranged Upstream Channel Displays an upstream channel that the device is trying to range with and the progress. CM Provisioning State After the physical initialization, the cable modem will be configured by a DHCP server from the service provider. Once the cable modem obtains an IP address, the cable modem is online.
A.3 MODEM CABLE MODEM : DOWNSTREAM Label Description Frequency Displays the downstream channel frequency on which the cable modem is scanning. Lock Status Displays if the cable modem succeeded in locking to a downstream channel. Channel ID Displays the downstream channel ID. Modulation Displays the modulation method that’s required for the downstream channel to lock on to by the cable modem. This method is determined by the service provider. Symbol Rate Displays the symbol rate.
A.4 MODEM CABLE MODEM: UPSTREAM Label Description US-1 to US-4 Upstream Channels. Channel Type Displays the channel type. Channel ID Displays the current cable modem upstream channel ID. Frequency Displays the current cable modem upstream frequency (Hz). Ranging Status Displays the upstream ranging status. Modulation Displays the current cable modem upstream modulation type (QPSK/ QAM8 /QAM16/ QAM32/ QAM64/ QAM128/ QAM256). Symbol Rate Displays the symbol rate (Ksym/sec).
A.5 MODEM CABLE MODEM EVENT LOG Label Description First Time Displays the time of the event. Last Time Displays the last time of the event. Priority Displays the event log severity. Description Displays a detailed description of the event log. Refresh Refreshes the event log record.
A.6 FIREWALL CONTENT FILTER NOTE: The above checked items are recommended default settings to be enabled. See the following page for further details on each of the above features.
Label Description Content Filter Settings Click the Enable button to enable a filter. Deselecting a checkbox disables the feature. Filter Proxy An enabled filter proxy server acts as an intermediary between a user and the Internet to provide security, administrative control, and caching service. When a proxy server is located on the WAN, it is possible for LAN users to circumvent content filtering by pointing to this proxy server.
A.7 FIREWALL EVENT L OG The Event Log option allows you to configure firewall event log reporting via email alerts and report on possible attacks on the system. See “How to Setup a SysLog Server on DDW3611.docx” for detailed info. A.8 FIREWALL REMOTE LOG The Remote Log option allows you to configure firewall remote logging of specific events as traffic is passed and/or actions are taken. Label Description Permitted Connections Select to log all access attempts that are allowed by firewall.
A.9 TOOLS PING Label Description Ping Target Enter the IP address to which you want to send a ping. A ping tests the network connectivity between devices by sending a test message to a specific device. You can also confirm the size of data sent is the same as received. Ping Size Enter the packet size to send for the ping operation. No. of Pings Enter the number of ping commands to send to the ping target.
A.10 TOOLS TRACE ROUTE The Trace Route utility traces the route that data is taking to and from the DDW3611 Gateway. Label Description Tracert Target Enter the specific IP address or domain (e.g. yahoo.com) to which you want to trace a route. MAX Hops Define the MAX hops. Hops is the number routers that the trace route traverses.
A.11 TOOLS CLIENT LIST The Client List option displays connected computers to the DDW3611 Gateway. Label Description Hostname/IP Address/MAC Address DHCP Clients currently connected to the DDW3611 Wireless Cable Modem Gateway are displayed in this list and are identified by the hostname, IP address, and MAC address of the connected devices. Interface The method that clients are connected to the device is displayed (for example, Ethernet LAN, Wireless). Refresh Click to refresh the client list.
