Unlocking BT 2Wire 2700HGV Business Hub (wireless router)

 

Contents > Technical information and Features:

 

 

 


Indicator Lights

       

A solid green light for both 'Broadband' (DSL) and 'Internet' indicators are a good sign that everything is working fine.

If you do not see a solid green Broadband (DSL) light, it usually means there is a physical connection or hardware problem.  The hub also won't report downstream or upstream line speeds on the main 'home' page.  Check your ADSL wiring.

If Broadband (DSL) light is solid green but the Internet light remains solid red, this usually means the ADSL settings are incorrect or there is an authentication problem with your ISP.  Check the settings such as the PPP username & password and Connection Type under Broadband Link->Advanced Settings.

 

Summary of indicator light status

Power - Light OFF

The hub is not getting power

Power - Blinking green (Slow)

The hub is undergoing Power On Self Test

Power - Solid green

Power is On.

Power - Blinking orange

The hub is undergoing a software upgrade - Do not disconnect electrical power otherwise you may damage the hub.

Power - Solid red

System error.  Hub has developed a hardware fault, or incorrect firmware installed causing permanent damage. A part faulty mains power adapter can also cause this issue.

Broadband(DSL) - Light OFF

The hub is powered off or is booting up.

Broadband(DSL) - Blinking green (Slow)

The hub is attempting to establish connection to your broadband service/telephone exchange.

Broadband(DSL) - Blinking green (Fast)

The hub has been unable to connect to the DSL signal for more than 3 minutes.  

Broadband(DSL) - Solid green

The hub is connected to the broadband service/telephone exchange.

Internet - Light OFF

The hub has been unable to detect a DSL signal, or DSL signal has been detected and gateway is in process of training.

Internet - Blinking green (fast)

The hub is attempting to establish a connection to ISP's network.

Internet - Solid red

The hub cannot connect to ISP's network.  Check ADSL settings.

Internet - Solid green

Hub is successfully connected to your ISP's network.

 


Rear Panel Sockets



2700HGV



2701HGV-C

Power

2700HGV: 5.1Volts @ 3Amps DC power requirement.  Barrel connector size: 3.9mm ext.Dia., 1.7mm int.Dia., Centre pin positive.

2701HGV-C: 12Volts @ 2.2Amps DC power requirement.  Barrel connector size: 5.5mm ext.Dia., 2.1mm int.Dia., Centre pin positive.

Reset

Restores current firmware to factory default settings.

Phone Lines (RJ11)

For VOIP use.  Use in conjunction with Voice port doubler adapter cable.

USB-PC

2700HGV only: For connecting to a PC which does not have ethernet or wireless capability.  Windows 98SE/ME/2000/XP/Vista (32bit) driver can be found on BT setup CD, or from BT website.

Local Ethernet (RJ45)

Four ethernet ports, supports 10 or 100Mbps, full or half duplex.

Fibre (RJ45)

2701HGV-C only: Ethernet port for connecting to BT VDSL ethernet modem.

DSL (RJ11)

Connects to ADSL line.









 




Internet Connection Speed Monitor

 

v5.x firmwares

One nice little feature of BT v5.29.117.x firmware is the internet connection speed monitor.  It becomes accessible via the 'home' page if the hub can communicate with the current BT provisioning servers and after entering the BT key code.

This feature is no longer visible on newly installed hubs with older BT firmwares which communicate with BT's previous now decommissioned older provisioning servers.  If you have a hub with older BT firmware and the Internet Connection Speed Monitor is present on the main home page, do not perform a factory reset on your hub. Such an action will delete the feature from the main page and you will not be able to reinstall the menu option.

           

However, Clive pointed out to me, this page is accessible on Singtel firmware based hub with BT keycode using the URL:  

http://home/xslt?PAGE=M01

This URL also works fine on a hub where I recently installed the BT v5.29.107.12 recovery firmware and using BT keycode.  This suggests the functionality is built into the firmware by default.

(Added 10 Aug'10):  Peter-G reports the above link also works on a hub with original BT v4.25.23 firmware which he acquired recently.

 

Note that this functionality requires a Java enabled web browser on your computer.

 

 

v6.x firmwares

I notice the Internet Connection Speed Monitor accessed through Settings > Diagnostics > Link Monitor didn't seem to be reporting any activity when I am accessing the internet. The page is also accessible via this link:

http://home/xslt?PAGE=C_5_1






(24 Jun 09): It now transpires that you need to log into the hub for the Link Monitor to display activity.  The easiest way of achieving this is to go to    Settings > System Info > Password
Once the password has been correctly entered, try the Link Monitor page again and it should not display broadband activity.

 

 

 


Lost the triangular stand for your hub?

'Bill from Mexico' referred me to a URL on DSLreports.com website discussing wireless power levels on the 2700HG hubs.

But I was particular bemused by Nanook's solution for a replacement stand for the 2700HG series of hubs.

The image is reproduced from the DSLreports forum here posted by 'Nanook'.



 

 


Internal Photos of 2700HGV

'The-Scream' forum member 'unlokia' has posted some photos showing the inside of a 2700HGV hub

Click here for forum link.



Asbokid has also provided very good photos of the BT 2700HGV in his blog. Image here.

It reveals the BT 2700HGV and 2701HGV-C both use a TriMedia VLIW core/2wire 'Ares' CPU. The ADSL2+ analogue front end is provided by a ST Micro ST20184 on the 2700HGV which according to the spec. sheet supports ADSL2+ Annex A and M.

Burakkucat has also provided a photo of the BT 2701HGV-C here.



I believe the Atheros AR2413A chip provides the 802.11b/g wireless support in the 2700/2701.

Thanks to FCC information here and here provided by Asbokid for the 2700HGV and 2701, I've deduced the 3 antennas fitted to the hubs are likely to be arranged as shown below. The Atheros AR2413A chip provides the 802.11b/g wireless support and there is a receive diversify switch to select the best antenna for obtaining the best reception from wireless clients connecting to the hub.



The orientation and location of the antennas would affect both the wifi radiation and reception patterns of the hub. Both models use Inverted F Antenna (IFA) designs. It is not clear why the arrangement of the antennas was changed. I would have presumed having one receive antenna at right angles to the other receive antenna would be beneficial for reception purposes in dealing with both vertical and horizontally polarised signals. With both receive antennas located in the base of the hub in the 2701HGV-C, one needs to be careful where the hub is located and the type of surface.










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