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Home→Tags 7300G

Tag Archives: 7300G

Billion 7300G secret menu (less dropouts)

Computer Aid Posted on 25 March, 2009 by Luigi Martin25 March, 2009

I seem to have a speed / reliability tradeoff with my Billion 7300G ADSL modem.

If I enable ADSL2+, the internet drops out many times a day.

If I enable only ADSL2, then I get slightly slower speeds (I’m quite far from the exchange), and dropouts happen every few days.

I then stumbled upon a “secret” menu:

http://{modem IP address}/iptv.asp

The “noise margin” drop down list gives you options of: Normal, IPTV, Maximum line rate, test lab 18, IPTV2, Others

Its currently set to “others”

I try a few settings, and these are the results:

Normal: 4093 kbps, noise margin (downstream): 7.2db

Maximum line rate: 4594 kbps, noise margin (downstream): 6.3db

test lab 18: 4775 kbps, noise margin (downstream): 6.1db

others: 4824 kbps, noise margin (downstream): 5.2db

This explains why many 5200G owners say its a very fast modem, but it works best if you are close to the exchange.

As the speed increases, the noise margin decreases and (I assume), the chances of a dropout increase due to changes in line characteristics.

So I decide to move from “others” to “maximum line rate”, and also change from ADSL2 to ADSL2+ (although I haven’t noticed any difference between ADSL2 and 2+).

After a few days, it looks like the modem is much more stable… no dropouts at all… its worth it for a slight drop in speed!

Posted in Technical | Tagged 7300G, ADSL2+, secret menu

ADSL2+ speeds (does the modem matter?)

Computer Aid Posted on 7 August, 2008 by Luigi Martin7 August, 2008

I recently switched from ADSL1 to ADSL2+ (both with TPG: I’m using the Narangba exchange).

After some initial problems, I found that the modem you use can make a big difference to the speed you get.

I calculate that I’ve got about 3.5 – 4 Km of wire from my house to the exchange (Line attenuation is 52-54Db downstream, 15.5-31.4Db upstream, Noise Margin is 4-6Db downstream, 6Db upstream).

I initially had an old Billion 5102S, together with an old tp-link wr642G wireless router, but once I got adsl2+, the internet would usually drop out between 1 and 5 times a day, and although it said the downstream speed was about 4000 kbps, It would often feel slower than my old 1500kbps ADSL1 connection.

After a few weeks, I decided to get a newer, all-in-one, wireless modem router. I do some research, and I read good things about the billion 7300G, but after installing it it still doesn’t work right.

About once or twice a day, it would spontaneously reset, and it still felt slow.

I eventually returned it (as I figured it was faulty).

While waiting for a replacement for the 7300g, I decided to install a netgear DG834G v3

I was amazed that the dg834G actually connected at 4700kbps! And, it generated a lot less dropouts, and no resets, and the internet actually felt fast (most of the time)

I wouldn’t have thought that the modem type would make much difference, but there you go!

I’ve since heard that some modems do well close to the exchange (less than 2 Km), while others are better at longer distances.

Once I got the replacement 7300G, I noticed that it would still dropout and reset (but not as often as the original).

After some research, and some experimenting, I found that I could make it much more stable by altering the ADSL settings (configuration -> WAN -> ADSL).

I changed the adsl mode to annex A (was open annex)

I also changed the modulator to ADSL2 (was auto).

I experimented with some of the other adsl modes (annex L, and annex M), but with no difference in upstream speeds.

I also tried some other modulator types (ADSL2+ would cause the modem to reset occasionally, and G.DMT was slightly slower than ADSL2).

With the current settings, the modem resets about once per week, and the adsl sync is lost every 1 to 2 days… Not bad, considering ADSL2+ seems to have a reputation for many dropouts once you are over 3Km from the exchange!

Posted in Technical | Tagged 7300G, ADSL2+, dropouts

billion 7300G wireless wpa fault

Computer Aid Posted on 25 July, 2008 by Luigi Martin25 July, 2008

After upgrading my internet connection to ADSL2+ (TPG), I decided to upgrade my network to an all-in-one wireless modem router.

After some research, I decide that the billion 7300G seems like the best all-rounder.

The initial setup went without any problems.

I even setup some QOS settings (to limit all the P2P thats happening in my household).

The next day, I try out the wireless with my laptop.

Hmmm, it doesn’t want to work.

The XP wireless connection keeps starting and stopping… it looks like it continuously connects, then disconnects.

I try no WPA security, and the laptop connects first time (and stays connected).

A quick browse of some forums reveals the answer: the 7300G cannot handle a WPA password that has a comma (,) in it.

I experiment with a few different ascii characters, and as far as I can find, the problem is only with the comma… I tried:

!@#$%^&*()-_=+[]{}|;’:”,./<>?

So I just recreate a new 63-character password, but without a comma.

Note: I noticed this fault while the 7300G had the latest firmware available to me: 1.36-698-80.3_sso_billion

Posted in Technical | Tagged 7300G, wpa

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