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How to Set Up a TransPort with a Gobi 2000/3000 for use with Sprint

For the WR41 & WR44
W-WAN NET
Will illuminate steady if the unit is able to log on to the Sprint mobile network.

W-WAN SIM
This LED should not light up since you do not a SIM for a Sprint account.

W-WAN DAT
Represents data passing to and from the network.

Signal Strength
Here is a guide for the signal strength:
  • -113 dBm or less (0 LED) -> effectively no signal
  • -112 dBm to –87 dBm (1 LED) -> weak signal
  • -86 dBm to –71 dBm (2 LEDs) -> medium strength signal
  • -70 dBm or greater (3 LEDs) -> strong signal
The minimum recommended strength indication is 2 LEDs. If you have no or 1 LEDs lit, it is recommended that you fit an external antenna to the unit.For the WR21
Service
Illuminates steady when there is a network connection to the WWAN interface and flashes when data is transmitted or received.

WWAN
Flashes to show which network mode the unit is operating in:
Off - no service
1 blink - GPRS mode
2 blinks - EDGE mode
3 blinks - UMTS mode
4 blinks - HSDPA mode
5 blinks - HSUPA mode
On steady - CDMA mode

Strength
Here is a guide for the signal strength:
  • -113 dBm or less (0 LED) -> effectively no signal
  • -112 dBm to –87 dBm (1 LED) -> weak signal
  • -86 dBm to –71 dBm (2 LEDs) -> medium strength signal
  • -70 dBm or greater (3 LEDs) -> strong signal
The minimum recommended strength indication is 2 LEDs. If you have no or 1 LEDs lit, it is recommended that you fit an external antenna to the unit.

 

Locating the Mobile IP Address
On the Home page, you should see the Mobile IP address under PPP1 (W-WAN (CDMA)).

 NOTE: If you get an IP address of 120.x.x.x, this is a false mobile IP address.  Please see the Troubleshooting section of this document.
 User-added image

Under Management > Network Status > Interfaces > Mobile
 User-added image 
 
NOTE:  Use the above screenshot as a reference for the below information.
 
This is the registration status of the mobile module with respect to the cellular network.
Ideally, it will show up as registered.

Signal Strength
The signal strength in dBm being received by the mobile module.
Here is a guide for the signal strength:
  • -113 dBm or less (0 LED) -> effectively no signal
  • -112 dBm to –87 dBm (1 LED) -> weak signal
  • -86 dBm to –71 dBm (2 LEDs) -> medium strength signal
  • -70 dBm or greater (3 LEDs) -> strong signal
The minimum recommended strength indication is 2 LEDs. If you have no or 1 LEDs lit, it is recommended that you fit a high-gain external antenna to the unit.Huawei EM680, Qualcomm Gobi 2000, Qualcomm Gobi 3000.

MDN
The Mobile Directory Number (MDN) of the mobile module.

MIN
The Mobile Identification Number (MIN) of the mobile module.

ESN
The Electronic Serial Number (ESN) of the mobile module.

MEID
The Mobile Equipment Identifier (MEID) of the mobile module.

Firmware
The firmware running on mobile module.

Bootcode
The bootcode firmware running on the mobile module.

Hardware version
The hardware version of the mobile module.

Registration State
See Registration Status.

Roaming status
The current roaming status of the mobile module.

Service capabilities
EVDO, CDMA 1x, or both

Radio band
1900 MHz for Sprint. 

Channel
The transmission channel in use.  25 for Sprint.

Preferred system
Specifies what you configured it for: CDMA, EVDO, or Auto.  You can set this under Configuration > Network > Interfaces > Mobile > Advanced.

PRL version
The version of the Preferred Roaming List (PRL) loaded on the mobile module.

Activation status
The activation state of the mobile module. It can be of the following:
  • 0 – Not activated
  • 1 – Activated
 Access the Transport Remotely
 
With Sprint as a cellular provider, they block certain ports.  A complete list of these blocked ports may be found in the Troubleshooting section below.  One of those ports is port 80, which is HTTP, which is the protocol normally used to access the Internet. With Sprint blocking this port, a user will no longer be able to remote into the Transport by simply entering the address (i.e. http://x.x.x.x where the x’s are representing the mobile IP address of the Transport).  Locally, the user will still have access to it using the local IP address.
 
In order to resolve the issue of getting into the Transport using the mobile IP address, there are two methods. 
  1. With the Transport, there are two services for entering the Web GUI, HTTP or HTTPS.  Sprint blocks port 80, which is HTTP, but they do not block port 443, which is HTTPS.  To change to HTTPS, go to Configuration > Network > Network Services, then click the “Enable Secure Web Server” button.  You will then click the Apply button and then the Save.  Then click the Save All button.  Note that you will lose your connection.  At this point, in order to access either remotely or locally, you will need to specify “https” (i.e. https://x.x.x.x where the x’s are representing your local or remote address of the Transport).
  2. The HTTP service, in the Transport, besides the normal port 80, also accepts port 8080.  This means that you can keep the default settings and then enter the unit remotely specifying port 8080 (i.e. http://x.x.x.x:8080 where the x’s are representing the mobile IP address of the transport).  Note that locally you may still enter the WebUI of the Transport as you normally would (http://x.x.x.x where the x’s are representing the local IP address of the Transport).  To change to HTTP (which is the default setting), go to Configuration > Network > Network Services, then click the “Enable Web Server” button.  You will then click the Apply button and then the Save.  Then click the Save All button. 
 
If you have a mobile terminated account, you should be able to access the Transport remotely.  Find a laptop or PC that has Internet access (outside of the Transport), open a browser, and specify, using https, the mobile IP address of the Transport (i.e. https://166.55.x.x).
 
If this fails, please verify that you have Web Server enabled (Configuration > Network > Network Services).  Having IP Forwarding (Configuration > Network > IP Routing/Forwarding > IP Port Forwarding/Static NAT Mapping) or IP Passthrough (Configuration > Network > IP Passthrough) enabled could affect these results as well.  Otherwise, if you cannot access your Transport remotely, the issue could be that you have a mobile originated account or a private account.  You should check this with your provider.
 
Troubleshooting
Ensure you are on the latest firmware
Updating your firmware may resolve your issue as well as enhancements to both your Transport and traces for troubleshooting.
  1. To check your firmware, go to Administration > System Information and note your Firmware Version
  2. Compare the firmware version to our latest release by going to www.digi.com > Support > Firmware Updates.
  3. Enter your Transport Model (i.e. WR21) in the field and then click on your particular model.
  4. It should bring you to a page for your product.  Choose the fimrware for the type of upgrade you will performing, either via FTP (WebUI) or FlashWriter, from the options on the page and save the file to your PC.
  5. Please follow “TransPort Firmware Upgrade Instructions” that is available under the General Firmware page listed above.
 
False Mobile IP Address Sprint units
120.x.x.x – If you see an IP address in the 120.x.x.x network for your mobile IP address, you should note that this is a false IP address.  Please attempt to re-provision your Transport.  If you still receive a false IP address, please provide the debug.txt file to Tech Support (please see “When contacting Digi Technical Support” below).  You may also need to contact Sprint, as well. 
 

Sprint EVDO Blocked Ports
http://ftp1.digi.com/support/documentation/QN_024_Extracting%20the%20debug.txt%20file%20from%20a%20Digi%20TransPort%20or%20Sarian%20router.pdf.
Last updated: Feb 27, 2019

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