
Contents | Ubee Interactive 2011
TABLE OF CONTENTS
Revision History ......................................................................................................................................................................................3
Key Reference Documents ...................................................................................................................................................................6
1Device Overview ...........................................................................................................................................................................8
1.1 Physical Specifications, Standards, Firmware Operations .................................................................................................8
1.2 DDW3611 LED Operational Summary ......................................................................................................................10
2Login Access..................................................................................................................................................................................11
2.1: Login - Web UI and Telnet CLI...........................................................................................................................................11
2.2 Management Access Defaults.....................................................................................Error! Bookmark not defined.
3. Wireless Configuration...................................................................................................................................................................12
3.1 Easy Wireless Configuration: .................................................................................................................................................12
3.2 Relevant Terms: .........................................................................................................................................................................12
3.3 WIRELESS Primary Network...................................................................................................................................13
3.4 WIRELESS Wireless Radio................................................................................................................................................14
4. Wireless Performance Improvements ........................................................................................................................................15
4.1: Wireless Performance Improvements ...............................................................................................................................15
4.1.1 2.4GHz Channels and Frequencies .........................................................................................................................16
4.1.2 5GHz Channels and Frequencies.............................................................................................................................17
4.1.3 Signal Attenuation –Receive Signal Strength Indicator (RSSI).........................................................................18
4.1.4 Spatial Steams and Speeds .........................................................................................................................................20
5FIREWALL Troubleshooting Tips ...........................................................................................................................................21
5.1: Adding a DMZ Host ...............................................................................................................................................................21
5.2: Can’t I PING the WAN Public IP of the Gateway .........................................................................................................21
6 CONNECTIVITY Troubleshooting Tips.....................................................................................................................................22
6.1 LEDs are OFF when cable modem is powered on. .................................................................................................22
6.2 LED for Ethernet port 1, 2, 3, or 4 on the cable modem is not lit. ....................................................................22
6.3 General Connectivity Issues: .........................................................................................................................................22
6.4 My Ethernet device won’t connect to the network. ...............................................................................................23
Appendix A –Key Web UI Troubleshooting Screens ................................................................................................................24
A.1 MODEM Cable Modem: Information ....................................................................................................................24
A.2 MODEM Cable Modem: Status...............................................................................................................................25
A.3 MODEM Cable Modem: Downstream..................................................................................................................26
A.4 MODEM Cable Modem: Upstream........................................................................................................................27