Firmware For Broadband Modems


This blog is getting plenty of hits from people who are searching for newer firmware for their broadband modems. Quite often, many tend to forget certain simple aspects; especially when it comes to upgrading the existing firmware to their modem. Some of them are:

(a) There is no need to upgrade the firmware of the modem if everything is working out fine at your end. Upgrading the firmware for the modem will not magically increase the stability of your ADSL connection.

(b) Flashing the router or modem with an incorrect firmware can render it useless. Although there are various methods with the help of which one can resurrect their dead modems, it is simply not worth the effort.

(c) Most of the ADSL modems supplied by the ISPs operating within India already come with the latest available firmware. There is no need to search for anything additional.

(d) If you are facing issues with your ADSL connection, please ensure that the incoming telephone line (the main line from the service provider) is free of cracks or does not have rust at its end. Quite often, the issue will be something with the ISP’s existing infrastructure (please bear in mind that this scenario is applicable only in this country because telephones lines are hung freely through poles or placed in the ground – which any nearby contractor can dig up and ruin your month)!

(e) Look at the SNR and attenuation values listed on the web interface of the modem. This can be accessed by typing 192.168.1.1 on your browser’s address bar. The greater the SNR, the better the connection (SNR = signal to noise ratio; a high SNR means more signal in the line than noise and hence it is good). The value of attenuation must be low. Attenuation (in simpler terms) is the amount of disturbing factors present in the line. The greater the attenuation value, the larger the number of detrimental factors and hence, you will experience the worse from the ISP. Given below is a chart which will give you some idea about the relationship in between SNR and attenuation values

(f) There is facility within the modem to update firmware on its own. Look out for CWMP / TR-069 option on the modem (this is seen via the earlier mentioned web interface of the modem). If enabled, the firmware will be automatically updated by the ISP at regular intervals.

Airtel Broadband automatically upgraded the firmware of my modem using the same technology. Check that out too 🙂

In short, do not go about hunting for the best firmware for your modem. By all probabilities you will end up with an expensive piece of brick.

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One Response to Firmware For Broadband Modems

  1. Pingback: Automatic Router Firmware Update from Airtel Broadband « Day Trading Redefined

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