Comcast DPC3939B Quick Start Manual Download Page 4

4

D.  Check if your WiFi device 

 is 

connected to your 2.4 GHz network.

If your WiFi device is connected, you should 
see a check mark (or other indication) next to 
the Network Name (SSID) you had selected.

E.  Test your Internet connection on your WiFi device 

.

Open a web browser (i.e. Internet Explorer, Chrome, Safari, Firefox), and try to access 
a site, such as www.xfinity.com.

F.  Connect your WiFi device 

 to the 

5 GHz band.

If your device supports 5 GHz, you should 
see 

CBCI-XXXX-5.

 To connect to 5 GHz, 

repeat Steps 2A-2E. If you don’t see your  
5 GHz network or you don’t have a 5 GHz 
WiFi capable device, skip this step.

Note:

  For help with the above steps or to learn about WiFi and 5 GHz, see p. 5-7.

Step 3. Connect to Your XFINITY WiFi Hotspot

Your Business Wireless Gateway also broadcasts a Public WiFi network with the SSID 
“xfinitywifi” for your customers and patrons. This network provides a separate and 
secure method for guests to access the internet while at your business. As a Comcast 
Business Internet customer, you also have access to this hotspot and the broader 
XFINITY WiFi network of hotspots around town.

A.  Log in to XFINITY WiFi:
 

1.

  Select the “xfinitywifi” Network Name (SSID) from available networks on your 

   wireless device.

 

2.

  Open a browser window. On some systems, such as Apple iOS, a browser screen 

   will appear automatically.

 

3.

  Follow the on-screen prompts to log in with your Comcast Business Internet 

   credentials.

 

Congratulations!

 

Now that you’ve logged in, you will be automatically signed in 

whenever you are near an XFINITY WiFi Hotspot around town.

Note:

  Comcast Business Internet should be unaffected by the Business Public WiFi service. Your Business 

Private WiFi network, as well as Business Public WiFi, use shared spectrum, and as with any shared 

medium there can be some impact as more devices share WiFi. 

Summary of Contents for DPC3939B

Page 1: ...Business Wireless Gateway Model Number DPC3939B Quick Start Guide Business Wireless Gateway Set up your Private and Public WiFi networks WiFi Devices ...

Page 2: ... the one Network Key Password The case sensitive password is the same for both Network Names SSIDs B Write down your information In the lines below write down your wireless network information for future reference Wireless Network Name SSID 1 for 2 4 GHz WiFi Band Example CBCI XXXX 2 4 Wireless Network Name SSID 2 for 5 GHz WiFi Band Example CBCI XXXX 5 Wireless Network Key Password Same for both ...

Page 3: ...ngs for popular operating systems are below If your operating system is not listed refer to the manufacturer s guides Windows On your Windows Desktop click the Wireless Network icon Android From the Apps screen tap the Settings icon Tap Wireless Networks then WiFi Settings Apple Mac OS X On your Mac Desktop click the WiFi icon Apple iOS iPad iPhone iPod Touch From the Home Screen tap the Settings ...

Page 4: ...he SSID xfinitywifi for your customers and patrons This network provides a separate and secure method for guests to access the internet while at your business As a Comcast Business Internet customer you also have access to this hotspot and the broader XFINITY WiFi network of hotspots around town A Log in to XFINITY WiFi 1 Select the xfinitywifi Network Name SSID from available networks on your wir...

Page 5: ...least 1 number and a mix of upper and lower case letters Business Wireless Gateway enables you to personalize your business network Features that can be customized using the Admin Tool include Content Controls Create rules for different network devices Firewall Manage network security settings Wireless Network Info The default Network Names SSIDs can be changed You may find it helpful to keep the ...

Page 6: ... a thin object to press the Reset button on the back panel Hold for 2 5 seconds and then release Caution Holding the Reset button for 15 seconds or more will restore default factory settings Any changes you ve made to the Business Wireless Gateway such as passwords content controls or firewall settings will be lost Business Wireless Gateway Where you put the Business Wireless Gateway in your busin...

Page 7: ...nect to only one Wi Fi network at a time 5 GHz WiFi signals may not travel as far as 2 4 GHz In areas of your business that are furthest away from the Business Wireless Gateway only the 2 4 GHz network may be available We recommend connecting to both 2 4 and 5 GHz networks during initial set up of all your WiFi devices If you re connected to the Business Wireless Gateway s 5 GHz network and move o...

Page 8: ... other countries Mac OS and OS X are registered trademarks of Apple Inc IOS is a trademark or registered trademark of Cisco in the U S and other countries and is used under license Android is a trademark of Google Inc All trademarks are the property of their respective owners 2014 Comcast All rights reserved ...

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