Document Revision 2009-10-28: RouterOS changes since V4.2

• 7Troubleshooting

3G HSDPA USB modem is backward compatible with HSDPA/UMTS/EDGE/GPRS/GSM,up to7.2Mbps maximum speed.You can access to high-speed internet.Through the continuous upgrading of software in future,it can provide you with more full functionality. 2.Product Specification. Wireless Broadband (CDMA EV-DO) Minicard Status Port: Vendor Device USB: 0930: Toshiba Corp. 1302: Wireless Broadband (3G HSDPA) SM-Bus Minicard Status Port: Vendor Device USB: 0930: Toshiba Corp. 1303: Wireless Broadband (3G HSDPA) Minicard Status Port: Vendor Device USB: 0930: Toshiba Corp. 1308: Broadband (3G HSDPA) SM-Bus Minicard.

Introduction

This example shows how to get the Option Globetrotter HSDPA USB Modem working with LMT (Latvian Mobile Telephone UMTS/GPRS networks), or with Amigo (GPRS network) in Latvia. Service in your country might have different requirements and strings, but this is just to give you an outline of what is required.

Hardware

USB Modem: Option N.V. Globetrotter HSDPA USB Modem H7.2

Modem manufacturer: Teltonika, model number U3G150

Router Hardware: MikroTik Router with USB port(s)(RB230, any x86 system, RB433UAH, or, RB411U)

Router Software

RouterOS V4.2. Works in previous versions 2.9 and 3, but slightly different configuration.

The USB Modem is recognized in RouterOS as an USB device and listed under the USB resources:

Make sure the USB port is listed under the port menu:

Prior RouterOS V3.23, a modem had all its ports listed. Since V3.23 there is one port per modem, and modem has channels used for commands and data. Channels have numbers 0,1,2, etc. Some modems may have just two channels, some have more. Set the baud rate to 9600 for communicating with the modem, in case it's not done already:

Check the modem responses using serial-terminal, like this:

Disconnect from the modem, by pressing 'Ctrl-A', and then 'Q':

Setting AT command as 'user-command' value can be useful for sending it from RouterOS scripts. Delay is required between RouterOS commands to send AT commands sequentially:

Workaround for Globetrotter devices offering no modem interface

There is no guarantee that the commands above work on all the modems that need the HSO driver. The tested device was a T-Mobile branded Globetrotter iCON 225 'web'n'walk Stick'. That device was able to connect without problems after the method described. Some Globetrotter HSDPA cards, for example the iCON 225 (branded as Orange, T-Mobile web'n'walk stick, etc. have the serial modem interface disabled by default, and only offer an NDIS network interface for the data connection. If a dial command is issued, but no CONNECT response happens from the modem, it might be helpful to check this. To check on the setting, issue:

In this example, the MDM (modem) interface is set to 2, so no serial modem interface is enabled in the device.

To change the setting, issue:

You should get: OK

To write the change permanently to the NVRAM of the device, issue:

Unplug and re-plug the device, and issue:

Number of channels should have increased. On the tested device, the last channel is the modem-interface (number 3 in RouterOS).

According to [1] the Linux HSO driver page at least five Option devices exist which do not have the modem interface enabled by default.

Router Configuration for PPP

Since RouterOS V4 (and latest versions 3) the PPP client configuration is made much easier compared to previous versions. There is no need to use ppp profiles, and ppp-client interface might have been added automatically to the /interface ppp-client list:

The interface has 3G/GPRS modem specific arguments, like apn, pin. Consult your network provider what to use for APN, user, and password. Adjust your peer-dns and default-route settings according to what you want to do over that interface! In our case, we want permanent connection and won't use dial on demand:

After enabling the interface watch the logs to see how the connection is being established over the USB modem:

The serial port is used by ppp client:

Check the addresses, in our case we have:

and routes:

Drivers Hsdpa Port Devices Bluetooth

You can get more status information about the modem and network by running the 'info' command. In our case the modem uses the same channel for data and info, thus, we disable the ppp-client and run the 'info' command then:

You may need to use masquerade to hide your private network when going out through the ppp!

Modem Preferred Operation Settings

OPTION modems can be set for preferred operation in UMTS(3G) or GPRS networks. To change the operation mode, use AT_OPSYS command via terminal, or, include it into the modem init string:

Query the current _OPSYS setting using the AT_OPSYS? command:

The _OPSYS operation mode setting stays intact after router reboot or power off/on. If you lock the modem operation setting to 3G only, the scan command won't show GPRS networks, and vice versa.

Troubleshooting

Note: RouterOS does not support memory slot like SD for USB modems. Use USB hub with USB modem and USB flash instead!'.

You do not get 'authenticated' and 'connected'

There is something wrong with your settings. Most likely, the ppp-client interface settings should be changed to match your provider's requirements.

Drivers Hsdpa Port Devices Usb

If the command for list of available networks:

Multiple inits (multiline inits) are required

It is possible by dividing them using ; character. Example:

Modem is not recognized after reboot (port becomes invalit)

It is recomended to disable built-inf flash/cd drive. Here are some command for few modem brands:

• ZTE modems: Read more>>

Disable:

Enable:

• HUAWEI modems: Read more>>

Huawei E3131 modem do not work with PPP interface

The Huawei modem might be in the HiLink mode and in order to work with the PPP the switch is needed. Go to this page where you have instructions how to do that: [2]

Sms sending is not working

1. check port
2. check PIN
3. enable debug logging GSM, DEBUG
4. check log
5. create supout

Sms receiving is not working

1. check port
2. check PIN
3. got delivery accounting sms ?
4. allowed-number is correct with country code prefix +XXX ?
5. secret matches ?
6. check sms store directly /sys serial usbX by issuing command at+cmgl=1 (lists all messages in message store)
7. enable debug logging GSM, DEBUG
8. check log
9. create supout

PPP client is not working

1. check port
2. check PIN
3. dial-on-demand is set to no?
4. apn correct?
5. needs special modem-init (to handle PIN use at+cpin=XXXX) ?
6. enable debug logging with topics ASYNC, DEBUG
7. check log
8. create supout

PPP info is not working

1. check port
2. uses same channel info-channel

Drivers Hsdpa Port Devices App

Category: Networks and Modems
Manufacturer: Sierra Wireless
Caution Level: Safe
Download File Size: unknown
Operating System: Windows
Latest Version / Release Date: 2.0.12.0 / 15 Dec 2006

Windows device driver information for Sierra Wireless MC8775 HSDPA Modem

The MC8775 HSDPA Sierra Wireless Modem, has a mini PCI express card that is embedded in the offers that connects to all the three frequency bands that is the eight fifty the nineteen hundred the twenty one hundred MHz as well as the four other bands with the GPRS and the EDGE the eight fifty , nine hundred, eighteen hundred as well as the nineteen hundred which are used world wide enabling the seamless universal roaming in one of the best networks that are available. There are the enabled voice variants in the modules that offer simultaneous information as well as voice transmission capable enabling the information transmissions able to work during the voice calls, Offering reliability, good quality as well as performance. However, it is advisable that a person backs up the computer before downloading and also to use the latest version of the download driver.

Outdated Drivers?

Unless you update your drivers regularly you may face hardware performance issues.

To check your drivers you should manually verify every device on your system for driver updates

To be able to download the MC8775 HSDPA Sierra Wireless Modem, one can follow the following steps .First the user should download the MC8775 HSDPA Sierra form their site then save ass well as open it on the computer. Then connect it to the computer, the user is then required to click on the right of my computer then to properties to the hardware tab then manager device button. Locate the new MC8775 HSDPA Sierra on the modem group then click it twice on the device and then the driver reinstall key. Choose from a particular location then confirm and include it in the location the select the browse key to choose the MC8775 HSDPA Sierra driver then the next key. Then, click on the finish key to be able to complete the installation. After the process the user should see a new MC8775 HSDPA Sierra modem in the manger device. It is highly recommended you run a free registry scan for Windows and Sierra Wireless MC8775 HSDPA Modem errors before installing any driver updates.