If the modem has not synchronised, the ADSL synchronisation LED will flash intermittently.
Go to the telephone nearest to (or connected to the same Microfilter as) your ADSL modem. Lift the receiver and then check for the normal dial tone. If there is...
Yes. There are wireless Access Points and Network Interface Cards that allow you to communicate at speeds of 11mbps. Signals run in the 2.4ghz range which will most likely not interfere with your DSL equipment like older 900mhz devices have been known to ...
Upon your broadband line being regraded to BT's new rate adaptive MAX system your line speed will be reduced to a minimum.
BT's system will test your line every 75 minutes and if the test is successful your line speed will be increased.
This proce...
Broadband ADSL/ADSL2+ connections are presently the most common form of high speed Internet access in the UK, yet sadly they don’t always work as intended. To this end we’ve pieced together a simple tips guide aimed at helping you get the most out of ...
You can set up a system with with the DSL modem in it and a NIC for your LAN and install a proxy program such as AnalogX Proxy to share the connection.
If you have an external Ethernet modem, you can put two NIC (Network Interface Cards) so that there ...
As long as you have both a DSL modem and your regular modem installed on your computer, and the DSL signal connected to your DSL modem, and just your voice signal connected to your modem, using DSL and dialup on the same computer is not a problem. (althou...
Home security systems with dial-out alert capability are often installed IN-LINE.. in other words, your telco line comes in, goes into your alarm box, comes out and continues to your junction box. The alarm system, whether active, standby or unpowered, is...
You can do this here on the site - just go to this page, where you can click on the button to get your IP address.
A more standard method is by using ipconfig in windows, or ifconfig in *nix.
With Windows, open a command prompt window (Start -> Run ...
Contention is something that appears to be only talked about in the UK, but it is a major part of the Internet. Without contention at the various points of the Internet it would be vastly more expensive to run and very few people would even have access to...
DHCP involves a four step process beginning with the client (your computer/MAC address) requesting an IP lease. Next the DHCP server makes a lease offer. Then, the client makes the lease selection and broadcasts back that it requests to lease the address ...
You can download a program called Spybot Search & Destroy here. It is a good search program. It has a major database of what to search for.
You can also download a program called Ad-aware here. Ad-Aware is the pionner of Spyware/Adware cleaning softwar...
This article provides a glossary of terms related to Vispa Max Broadband products, known problems with the introduction of the new systems and the underlying technology on which these products are based - IP Stream Max (DSL Max).
IP Stream MaxThis is t...
Hello, The diagnostics show that there has been a lost carrier on your line. This is common when the exchange looses communication with your modem. It could well be a BT fault or on the other hand, it may well be a problem with your modem or microfilter....
Remove all Microfilters and ensure your telephone is connected securely to the main telephone socket, also known as the Network Terminating Equipment (NTE) port.
Check the dial tone again. If you can hear a dial tone when the telephone is plugged into ...
Remove all Microfilters from the telephone sockets. Connect all telephones directly into the telephone sockets.
Go to the telephone where you noticed the problem. Check to see if the noise/echo you heard, is still there.
If the noise has disappeared...
PPPoA (PPP over ATM) and PPPoE (PPP over Ethernet) definehowdataisencapsulatedoverdifferenttypesofnetwork. At present (Summer 2004), all BTwholesale provided DSL lines use PPPoA. For a modem to work in the UK it must be G.DMT and PPPoA compliant.
PPPoA r...
We would like to remind Customers that we identified an extremely small percentage of seasonal lighting, which can be used both internally and externally and may cause interference with the Broadband service. When the lighting control unit is set to any m...
Test 1
The End User enters username 'bt_test_user@startup_domain' in the login account details on his/her PC, and enters anything in the password but must not leave it blank.
After clicking the connect button, a connection is made which permits the ...
No. Why? It doesn't save you any money. If you concerned about security, though, and don't mind shutting your computer down, it may be prudent. An windows product called ZoneAlarm is also neat.. ZoneAlarm offers a button, click this when you leave your co...
The nature of the internet and traffic patterns across various time zones, locations and peak usage means that consistent performance of Internet browsing cannot always be guaranteed. If however you are sure that performance has substantially degraded ove...
Check your modem is synchronised* by looking at the ADSL LED light. If it flashes intermittently it is not synchronised. Refer to ’ADSL Modem Will not Synchronise – See ADSL Modem will not synchronise article.
If the ADSL LED light is on and does ...
When a phone line has been enabled to use ADSL broadband, every single piece of hardware required to be connected to it requires a filter. This is true, even if just a telephone is connected. The easiest way to setup is to plug a filter into every socket,...
MAC Address: A MAC address, short for Media Access Control address, is a unique code assigned to most forms of networking hardware. The address is permanently assigned to the hardware, so limiting a wireless network's access to hardware -- such as wireles...
A Domain Name Server (DNS or NS) is a way of converting a domain name into a form that
computers understand.
Internet machines are each allocated a number called an IP (Internet Protocol) number which are
normally unique. An example might be "192.168...
G.DMT is a ratifiedstandarddefininga commoninterfaceforADSLmodems.G.DMT‘wires-only’ADSLwaslaunched as a product in January 2002 by BT Wholesale.
This allows Vispa users to use DSL modems that they themselves have purchased, as oppossed to the Alcat...
It makes sure that all ATM packets that come from the DSLAM to you and from you to the DSLAM are not corrupted, and if any are, it forces a re-send.
Having Interleaving off may introduce packet loss depending upon how clean your line is. If it is a r...
Your static IP is the IP address which your computer or modem is assigned. This IP is publically available from anywhere on the internet.
The easiest way to find this is to simply goto: http://www.whatismyip.com in your web browser.
Your static IP i...
WEP is short for Wired Equivalency Privacy and it is a security protocol for Wi-Fi networks. Many base stations have WEP turned off by default but users can change that setting. WEP, however, has known flaws that skilled hackers can exploit.
Wi-Fi is short for "Wireless Fidelity" and is a set of standards for wireless local area networks based on the specifications known as 802.11. It was originally developed for use by wireless devices and local networks but it is now used for Internet acces...
This varies depending upon software and hardware. Ping times of around 15 to 90ms are normal. ADSL uses a form of data interleaving to help increase tolerance towards line noise. The data processing algorithm takes time and hence latency is increased.
Wi-Fi Protected Access (WPA) is a data encryption specification for 802.11 wireless networks that replaces the weaker WEP. Created by the WiFi Alliance before a 802.11i security standard was ratified by the IEEE, it improves on WEP by using dynamic keys, ...
Due to the nature of the Transmission Control Protocol (TCP), special acknowledgement (ACK) packets must be transmitted back to the source for every packet downloaded (and vice versa when uploading).
If you are uploading at maximum speed, these ACK pa...
Your broadband service will be migrated to 21CN as and when your local BT exchange becomes ADSL2+ enabled. Â There are over 5500 BT exchanges throughout the UK which will all eventually be 21CN enabled however this of course requires a roll out plan. Visp...
Symptoms:
You can't access any web pages and your ADSL modem/router reports your connection hasn't been made (how it does this varies from one piece of hardware to another).
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On the whole, replacing a USB modem with an Ethernet based device appears to lower pings by around 5 to 10ms. Some people see more improvement than others.
The other advantage is that Ethernet routers remove the CPU load placed upon a computer by a US...
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