Tag Archives: WRT54GL

D-link DSL2542B

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I just bought a new ADSL2+ modem today-D-link DSL2542B.

D-link dsl2542B

My ADSL line(Streamyx) quality is not good because of the bad copper connecting between the cabinet and DSLAM.Thus,the free modem given by TM-Billion 5112S can’t get a stable connection always.I googled a lot to dig out how to get a low line attenuation and high SNR margin to achieve a much steady online experience and I found that the modems which are built with Broadcom chipset normally could gain a good result on a bad condition.That’s the reason why I choose this modem.

I have to say that it does work well at current condition.Here’s the ADSL information from the modem:

D-link modem status The downstream SNR margin shows consistently at 28-29db whereas the downstream line attenuation becomes at 43.5db,slightly lower than before.

The TM technician who I’m familiar with is still looking for a way to let me have a better line attenuation in order to fulfill the requirements applying to upgrade to 4Mbps.I wish that will be a way indeed.

Through doing the settings and testing,I met some questions and didn’t solve yet.

  • I can’t get it work once I set this modem at bridge mode connecting with Linksys WRT54GL router.
  • It seems like only auto connection could be done in the modem.I can’t manually connect or disconnect one session.

Anybody has solutions?

Linksys WRT54GL V1.1

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I bought Linksys WRT54GL years ago which previously worked with an Aztech modem.After the modem broke,the router was put into a corner as I had Linksys WAG200G modem router,acting well on normal use.

Linksys WRT54GL

However,recently I’m heavy downloading and it makes the transmission congested once several PCs are using at the same time.I think putting the router into the network should be a good solution as I could do some QoS(Quality of Service) settings there so that optimize the entire network.

This router packs with Broadcom BCM5325 200MHZ CPU,16MB RAM and 4MB flash and it is set on Linux-based,so lots of third-party firmware which may boost the performance are available,such as DD-WRT,Tomato,Open-WRT etc.The official ‘stock’ firmware just means stable for normal use.For me,a DD-WRT or Tomato firmware would only fit my needs.

Steps to install DD-WRT firmware:

  1. Turn the router into default settings(stock firmware)
  2. Upgrade to DD-WRT mini firmware and reset
  3. Upgrade to DD-WRT standard/VPN/VOIP firmware and reset
  4. Configuration

After I flashed the new firmware,I started P2P downloading as a test.I used QoS setting allowing 60% of bandwidth for P2P downloading and 40% for HTTP and others.I’m not quite satisfied with the result because it still made the network congested;in addition,the interface loads very slow.Thus,I decided to try Tomato firmware immediately.

Steps to install Tomato firmware(directly from DD-WRT V24SP1):

  1. Turn the router into default settings(of DD-WRT)
  2. Upgrade to Tomato firmware and reset
  3. Configuration

It’s a very simple trilogy.The interface is very clean so that setup will never be a tough thing.Ajax technology makes the interface load very fast and consistent.What is important is that no more congestions while heavy loading.Awesome!

From now on,I will be able to fully utilised the bandwidth of DSL broadband without annoying.Happy day! :D

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