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FAQs

1.        How to insert your SIM card in the CM685 and CM820?  (Watch on YouTube)

2.        How to insert your SIM card in the CM210? (Watch on YouTube)

3.        How do I access the router’s Setup Page?

4.        How do I configure the basic settings and APN of the CM685/ CM820? (Watch on YouTube)

5.        How do I configure MAC address filtering?

6.        How do I set port forwarding? (Watch on YouTube)

7.        How do I configure remote access via DynDNS? (Watch on YouTube)

8.        How do I convert the WAN port into a LAN port?

9.        How do I save an existing configuration, load a saved configuration or set the modem to factory default settings?

10.      How do I upgrade the firmware remotely?

11.      How do I configure PPTP VPN settings?

12.      How do I configure a SIM card that comes with an APN user name and password?  How do I set the SIM card PIN code?

13.      Please explain the different status indicator LEDs?

14.      How do I convert signal strength from CSQ to dBm?

15.      What is the difference between a public and a private IP?

16.      What are the common APNs in Australia?

17.      How to cascade a COMSET Router to an existing ADSL router?

18.      If the power adapter gets defective, can I buy another power adapter from store?

19.      How to setup CM685 router as Access Point Client?

20.      How to Setup Fail over Backup Redundancy (DHCP)? (Watch on YouTube)

21.      Getting Low Router Cell Signal

22.      How do I configure wireless security using WPA-PSK encryption? (Watch on YouTube)

23.      How do I turn WiFi off?

24.      How do I configure VPN PPTP server using DynDNS? (Watch on YouTube)

 


1.  How to insert your SIM card in the CM685 and CM820?

CM685: Install the SIM card with the gold-plated circuitry facing down.

Slide in the SIM card in the SIM tray with the SIM card latch on the upper left side of the tray. Push the tray in the casing until a click is felt/sounded.

 

CM820: Install the SIM card with the gold-plated circuitry facing down.

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3.        How do I access the router's Setup Page?

The CM685P/T router has a built-in WEB interface, for management and debugging. Basic configuration and advanced troubleshooting can be done on this page. To learn how to login and view the COMSET router’s setup page, please follow these steps:

IMPORTANT:

i.)                  Router should be powered ON

ii.)                 Hardwire PC directly to the Ethernet port of the router using an RJ 45 cable.

Accessing the Setup Page

Step 1: Launch a web browser (IE, Firefox, Safari),

Step2: In the Address bar type “192.168.8.1” then hit [enter]

Step3: Enter your router's user name and password.  By default, type "admin" for username and "admin" for password.  Then hit "OK"

Step 4: The Status Page should appear like the picture below:

 

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4.       How do I configure the basic settings and APN of the CM685/ CM820?

  • Insert the SIM card in the SIM card tray at the back of the modem.
  • Before switching on the modem, please ensure the antennas are securely connected. Connect the AC supply pack that comes with the modem.
  • Connect the modem router LAN port to a PC via RJ45 cable. Set the PC to automatically obtain the IP, subnetmask, and DNS from the router/modem. The PC will get an IP of 192.168.8.xxx range.
  • At PC internet browser, please type: http://192.168.8.1. A login window will pop-in, enter the login details as: Username: admin Password: admin
  • Navigate to: Network Settings > WAN> Advance Parameter Groups. 

  • Enter the APN (i.e. telstra.internet) in the APN field. Erase/clear the username and password fields as necessary, or enter the username/password provided by your network provider. Click the “ADD/EDIT” button and wait for the command to complete.

              

 

  • Click the “APPLY” button. After synchronizing with the network which may take up to a minute, refresh the Status page and the Cell Status should show “UP”.

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5.        How do I configure MAC address filtering?

Firewall or IP filtering can be performed using either an CM685P/T or CM820P/T to setup a secure LAN communications. MAC and IP address filtering feature can be activated by setting up Firewall > MAC/IP/Port Filtering. Please see below:

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6.      How do I set port forwarding?

Port Forwarding feature is the function of translating and forwarding an inbound connection to a destination with a defined port number within the local area network.

Required Input:

Port Forwarding: Enable or disable the feature

IP Address: Local IP address to be assigned and a local port

Port Range: External Port

Protocol: TCP/UDP, TCP Only, UDP Only

Interface: Recommend to select "WAN" for inbound connection

Comment: Notes/comment to define the rule

To configure Port Forwarding, navigate to: Firewall > Port Forwarding:

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7.      How do I configure remote access via DynDNS?

DDNS feature allows a dynamic public IP to be used with the modem, and a fixed domain name is allocated (acquired thru DNS service provider) to enable remote access from anywhere.

IMPORTANT:

DynDNS requires a SIM card enabled with a public IP, either dynamic or static. Please contact your network service provider to setup this feature.

To set DDNS service, go to Administration > Management:

Required input:

Account       :               Username in your DDNS provider/account name

Password    :               DDNS password

DDNS            :               domain name assigned to your modem

Note:

Prior to acquiring the DDNS name to be assigned to your modem, you need to sign up for the DDNS service. In the example below, we use www.dyn.com :

  1. Login to the web service www.dyn.com and sign up for the service to create your user account.

 

  1. Add/create the DDNS name that will be assigned to your modem.

  1. Enter the DDNS name and IP details of your modem. The IP address will be the public IP address assigned by the network service provider (i.e. Telstra). You can view this parameter on the status page of your modem user interface.

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8.      How do I convert the WAN port into a LAN port?

  1. Initial condition

Connect the router to a PC via the LAN port. Open the UI using the router gateway IP address (Default: 192.168.8.1). Check the Ethernet port status as per below:

 

  1. Navigate to  Operation Mode:

Tick “Ethernet WAN port as LAN in Gateway Mode”. Click “Apply” to save. Please see below sample configuration.

Wait for the message below to appear. Wait 2-3 minutes then reboot the modem router by switching it Off and On.

 

  1. Test Status and condition

Connect to the modem router using the WAN port. Wait for the Ethernet link to synchronize with your PC. Open the modem browser by typing its gateway address (192.168.8.1).

 

The Ethernet port status should show the below (WAN becomes LAN5)

 

      Ping the gateway IP address.

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9.      How do I save an existing configuration, load a saved configuration or set the modem to factory default settings?

 

In order to make a back-up of an existing modem configuration, please follow the procedure below:

  • Save an existing configuration
  1. Navigate to “Settings Management”.
  2. Click on “Export” button and choose the folder location on your PC.
  3. Please see below:

  • Load an existing/saved configuration
  1. Navigate to “Settings Management”.
  2. Locate the database file and click on “Import”
  3. Please see below:
  • Load factory default configuration
  1. Navigate to “Settings Management”.
  2. Click on “Load Default” button.
  3. Modem will reset
  4. Please see below:

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10.      How do I upgrade the firmware remotely?

1. Save the relevant firmware file on your PC.

2. Ensure the unit is installed with a SIM card with a public IP address. If the IP is dynamic, it is advisable to use DyDNS function.

3. Ping the modem IP address from a remote PC to ensure connection.

4. If the connection is not stable, please do not proceed with upgrade. A discontinued/disconnected upgrade process may damage the modem firmware. Remote firmware upgrade should be considered as last resort if modem cannot be upgraded through the LAN (preferred method).

5. If the connection is stable, login to the modem remotely by entering its public IP address (WAN IP Address) in your remote PC internet browser.

6. Type in user name and password.

7. Check the present status and firmware version of the modem. Save these parameters by pressing "Print Screen" in your PC and paste it in a word document.

8. Save the existing configurations if necessary. Otherwise, you may proceed with the upgrade.

9. Navigate to “Administration > Upload Firmware”. Choose the firmware file saved on your PC. Click “Apply”

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11.      How do I configure PPTP VPN settings?

To configure PPTP, navigate to VPN > PPTP (Either as server or client):

Parameters to fill:

PPTP VPN Active       :           Enabled/Ticked to activate PPTP

PPTP User                   :           Username from the PPTP Server

PPTP Password           :           Password from the PPTP Server

PPTP Server                :           PPTP server IP or domain name

Remote LAN/Mask      :           PPTP LAN and netmask

Local PPTP IP             :           By default, it's DHCP but can be set to PPTP server IP domain

Encryption                    :           Enable/Tick as necessary/required by PPTP server

Click “Apply” to enter all the settings.

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12.      How do I configure a SIM card that comes with an APN user name and password?  How do I set the SIM card PIN code?

Navigate to Internet Setting > WAN. “Click on Advance Parameters Group”. Enter the APN User name and password under the APN field.

For SIM card that comes with PIN code, please enter the PIN under the “Auth Type”. Ensure that Auth Type is set to Auto.

Click on “Add/Edit” button. Wait for the command to be accepted. The page will be redirected to the WAN page. Click on “Apply”.

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13.      Please explain the different status indicator LEDs.

Refere to the table below for explanation on the different status indicator LEDs:

LED Condition Description/Status
SYS ON for 25 seconds ON for 25 seconds after power-up
  Blinking System is working normally
  OFF  Setup failure
LAN Blinking Data transmission activity on LAN
  OFF  Disconnected
  ON   Ethernet is connected, no activity
CELL ON Access to the 3G/4G network is established
  OFF  Disconnected
WIFI ON WiFi is enabled
  OFF  WiFi is disabled
WAN Blinking Data transmission activity on WAN port
  OFF  Disconnected
  ON   WAN Ethernet is connected, no activity
SIGNAL OFF  No signal coverage (signal not sufficient for transmission)
  ON after 4 seconds Signal is poor (Bar = 1)
  ON after3 seconds Signal is poor (Bar = 2)
  ON after 2 seconds Signal is sufficient (Bar = 3)
  ON after 1 second Signal is good (Bar = 4)
  Two blinks after 1 second Signal is excellent (Bar = 5)

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14.      How do I convert signal strength from CSQ to dBm?

Signal strength is measured in CSQ (Carrier Signal Quality).  You can convert this value into dBm using the formula dBm= -113 + N*2 (Where N is the CSQ value).

Alternatively, you can refer to the conversion table below:

0 < -113 dBm (Marginal)
1 -111 dBm (Marginal)
2 -109 dBm (Marginal)
3 -107 dBm (Marginal)
4 -105 dBm (Marginal)
5 -103 dBm (Marginal)
6 -101 dBm (Marginal)
7 -99 dBm (Marginal)
8 -97 dBm (Marginal)
9 -95 dBm (Marginal)
10 -93 dBm (Workable under most conditions)
11 -91 dBm (Workable under most conditions)
12 -89 dBm (Workable under most conditions)
13 -87 dBm (Workable under most conditions)
14 -85 dBm (Workable under most conditions)
15 -83 dBm (Good)
16 -81 dBm (Good)
17 -79 dBm (Good)
18 -77 dBm (Good)
19 -75 dBm (Good)
20 -73 dBm (Excellent)
21 -71 dBm (Excellent)
22 -69 dBm (Excellent)
23 -67 dBm (Excellent)
24 -65 dBm (Excellent)
25 -63 dBm (Excellent)
26 -61 dBm (Excellent)
27 -59 dBm (Excellent)
28 -57 dBm (Excellent)
29 -55 dBm (Excellent)
30 -53 dBm (Excellent)
31 > -51 dBm (Excellent)

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15.     What is the difference between a public and a private IP?

A public IP address is any valid address, or number, that can be accessed over the Internet.  A public IP address is glogally unique and can only be assigned to a unique device.

A private IP address is any number or address assigned to a device on a private TCP/IP Local Area Network that is accessible only within the Local Area Network.  There are three private IP blocks (1 class A, 1 class B and 1 class C) as outlined in the table below:

Class Starting IP Address Ending IP Address # of Hosts
A 10.0.0.0 10.255.255.255 16,777,216
B 172.16.0.0 172.31.255.255 1,048,576
C 192.168.0.0 192.168.255.255 65,536

 

For a resource inside the Local Area Network to be accessible over the Internet, a device within the Local Area Network must be connected to the Internet with a public IP address, and the networking must be appropriately configured.

A public IP address is particularly required if the device needs to be accessed remotely via the internet.

Below outlines the suggested configuration of your SIM card for a public IP address in Australia:

Telstra:

Call or visit your Telstra Business Representative to configure your SIM card for a dynamic public IP by entering the product code GPTEXB3. Once this is entered, the APN that needs to be assigned in the APN field of the router is “telstra.extranet”.  Both username and password are usually left blank. Please note, to have a public IP enabled, you need to have a post-paid account with Telstra.

Optus:

Call or visit your Optus Business Representative to configure your SIM card for a public IP. The APN that needs to be assigned in the APN field of the router is “yesbusinessip”.  This will provide a static public IP based on network availability.  Both username and password are usually 'optus' when using the APN 'yesbusinessip'.  However, please check with your Optus authorized representative.

Vodafone:

Vodafone provides a private IP only.  The APN is live.vodafone.com.

 

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16.       What are the common APNs in Australia?

APN's (Access Point Names) are used by GPRS/3G/4G cellular data networks in establishing packet data connections. The APN determines how the carrier network passes IP traffic to the destination network (i.e. what IP addresses are assigned to the console server, what security methods are used etc).

Upon purchase of a SIM card, you will be provided information by your wireless carrier for configuring the data connection e.g.

- APN (Access Point Name)

- Pin Code (optional PIN code which may be required to unlock the SIM card)

- Data Number (the sequence to dial to establish the connection, defaults to *99***1#)

- Username/ Password (optional)

- Dial string (optional AT commands)

Common APNs for Australian network providers are:

Additionally, please check and confirm from your network (SIM) provider the APN details assigned to your SIM card. APNs, IP-functions, and other functionalities may vary from time to time and is entirely network-dependent.

APN's (Access Point Names) are the most fundamental requirement in 3G/4G data communications. A wrong APN setting will result in disconnected system or inactive connection. Please ensure that you confirm this information with your network provider.

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Network Setup

IMPORTANT:  The main router should have an active Internet connection before cascading the secondary router; otherwise you need to set it up first.

Step 1: Check and take note of the IP address of the main router.

Step 2: Connect a computer to the secondary router (desktop or laptop to one of the Ethernet ports of the second router). In this image, Comset router is acting as the 2nd router.

Step 3: Access the web-based setup page of the secondary router. By default, IP address is “192.168.8.1”.

Step 4: Setup the secondary router to “Gateway Mode”.

Step 5: Connect the cable to “LAN” Port of the Main Router to the “WAN” Port of the secondary router using an Ethernet RJ45 cable.

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18.       If the power adapter gets defective, can I buy another power adapter from store?

Yes. It’s a generic adapter that you can purchase from any electronic store. For direct current source, use input powers supply +5~+40V (if your CM685P/T supports 50V, the option is +5~+50V). In most cases, the standard configuration is 12V/1A.

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19.       How to setup CM685 as Access Point Client?

The router can be setup in three different configurations: Bridge, Gateway, and Access Point Client. In this setup, we are going to configure the CM685 as Access Point Client Mode that allows the router to act the wireless client.

Note: In this setup, you need two CM685 routers:

Step 1: Connect PC directly to the main router using a RJ-45 cable. Access the web-based setup page of the main router. For instructions, click here.

Step 2: Navigate to “Operation Mode”. Configure the main router as “Gateway” mode, and click “Apply”.

Step 3: Click on “WiFi” and select the “Basic” option to customize your wireless settings.

Under “WiFi”, click on “Security” option and setup Security Password on the router.

Step 4:  Take note of the “Frequency Channel” and “Extension Channel” as we will use same value on the secondary router. Then Click on “Apply” to save changes.

Step 5: Navigate to “Internet Settings” and Click on “WAN”. Make sure that the WAN Connection Type is set to “Cellular Network”.

Step 6: Test your Wi-Fi connection by connecting a laptop to the wireless network. If it works then main router is properly configured. Proceed to step 7.

 

Steps on how to setup the Secondary Router

Step 7: Connect PC directly to the main router using a RJ-45 cable. Access the web-based setup page of the main router. For instructions, click here.

Step 8: Navigate to “Operation Mode”. Configure the router as “Access Point Client” mode, and click “Apply”.

Step 10:  Navigate to “WiFi”. Once you have selected AP Client Mode, another option will appear as “AP Client”. Configure the Wireless settings of the secondary router with same SSID.

The “Frequency (Channel)” and “Extension Channel” should be the same as the Main Router. 

Step 11: Navigate to Internet Settings > WAN, set the connection type as “DHCP (Auto config)” and then click “Apply”.

Step 12: Click on Status, if it shows “Operation Mode” as AP Client Mode , that means the secondary router now acts as Access Point Client.

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20.       How to Setup Fail over Backup Redundancy (DHCP)?

Failover is switching to a standby network upon the failure or termination of the main network. Once Failover backup configuration is enabled on the router, it usually operates automatically without any human intervention.

Important Note:

Confirm that the main (upper) router’s side connects to the internet and DHCP Server is enabled and working. For route fail over feature, please first make the main network and backup network both work before you activate the feature.

With this configuration, the router will work at cellular mainly, and if cellular is failed, it switches to DHCP automatically after some time. And it will automatically switch to cellular when cellular is fixed.

Step 1: Connect PC/Laptop directly to the LAN port of the router using RJ-45 cable.

Step 2: Access the web-based setup page of the Comset router. For instructions, click here.

Step 3: Navigate to Operation Mode and make sure it’s set to “Gateway”.

Step 4: Click on Link Backup to setup.

Step 5: Navigate to Internet Settings > WAN. Make sure that Cell Network is selected.

Step 6: Unplug the RJ-45 cable that is connected to the LAN Port of the CM685 Router.

Step 7: Use the existing RJ-45 cable and connect it from the LAN port of the ADSL router going to the WAN Port of the CM685 Router.

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21.      Getting Low Router Cell Signal?

Main Cause & Solution

Cause

Solution

Low Network Signal from the site

Try to move the device to another place to test if it will get better signal.

Antenna not getting good signal

Try to change another antenna. Please ask for dedicated antenna or get dedicated antenna from your carriers or from the local antenna sellers.

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22.      How do I configure wireless security using WPA-PSK encryption?

Log-in to the router configuration page and click the ‘Security’ tab in the ‘WiFi’ Panel.

 

 

Step 1. By default, Security Mode is disabled.  Set Security mode to WPA2-PSK shown above.

Step2. Set WPA Algorithms to AES.  If you choose TKIP, 11n will be disabled.

Step3. Set your password. Note your password must be 8 characters.

Step4. Set access Policy to ‘disable’.  If you want specific mac-address to allow or reject connections to the wireless router, you can enable it and set mac-address in this format xx:xx:xx:xx:xx:xx.

Then click ‘Apply’  

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23.      How do I turn WiFi off?

Navigate to: WiFi > Basic

By default WiFi is turned ON.  Both 'Radio' and 'WiFi' buttons should display 'OFF'

To turn WiFi OFF, click on both 'Radio' and 'WiFi' buttons to display 'ON'.

Click 'Apply'.  Now WiFi is turned OFF.  The page should display like below:

 

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24.      How do I configure VPN PPTP Server using DynDNS?

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Note: For more details on configuring the modem settings, please download the User Manual from www.comset.com.au

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