I have ADSL and I have never had a problem with my internet connection until two weeks ago. Now after having my Billion modem changed three times with my supplier, I still have to use dialup because I can't figure out the problem. In short, I don't know of any reason of what may have caused the problem. It just happened. I have done all that I can think of: changed the ethernet cable, reset the modem, checked to make sure I don't have a firewall, called Billion, called my ISP etc etc.
My network preferences show a green light, telling me I am connected to the internet..
but when I attempt to access the web, my browser produces an error saying that it cannot find the server.
The modem panel lights are lit - there is Power, SYS (system?), a Lan port, ADSL and the PPP flashes. That means things should be ok right?
If anyone could assist I would be immensely grateful for my IT skills are in very short supply.

nickgt;

have you fiddled with your DNS settings? they are under system preferences>network>choose your adsl connection>dns

neil

If you are using Airport try changing the "Connect Using" Ethernet instead of PPPoE under the Internet setting in Airport Admin Utility.
Had a similar problem with my new Billion ADSL2+ router modem.

I have added an attachment to show my set up in network preferences. I have connected using TCP/IP and I've configured my connection using DHCP. I'm not sure whether I should be using PPoE - the Billion helpdesk guided me through using the DHCP set up.

Neil - Is this where you are refering to DNS settings?

I have no idea, but I feel this must be easily solved...?

I don't use Airport.

Hi,

Okay, I've done a bunch of screengrabs of my setup (iMac G5 running broadband) and have attached so you can compare your network settings...

Hope this helps )

Dan

I had a similar issue with my broadband connection. I was able to obtain a valid IP address (as you appear to be able to do, from the screen-shot) but could not connect to the internet. It turned out to be an issue with packet size. Fortunately, it is easily fixed. (Note, if this doesn't work, change the setting back to the default settings.)

1 Open the System Preferences panel and select Network
2 Select your current network connection and select the Ethernet tab on the right
3 Select Configure-Manually (Advanced)
4 Where it says Packet Size MTU, select Custom
5 Change the number from 1500 to 1430
6 Click Apply

If 1430 doesn't work, try 1420 or 1440.

If none of these work, return setting to default.

Let us know how you go

Create a new location, then set it up as per danno74's screen shots. Once you've done that go to that TCP/IP tab, click 'Configure IPv6' and turn it off.
If you still can't browse, fire up the 'Network Utility' (Applications -> Utilities) and see if you can ping google.com, if you can't DNS resolution or data flow might be the issue so see if you can ping your ISP's DNS.
If you can ping the DNS, go to the TCP/IP tab in network prefs and change it to manual, use the same settings you get from the modem except change the DNS to your ISP's.
Alternately, if you can't ping your ISP's DNS. Ping your router modem and try accessing it's web config. If those fail, have a look at your ethernet negotiation settings otherwise try changing your MTU as per Botox's instructions.

The problem may be elsewhere. Have you tried another app which accesses the internet? e.g. try Software Update.

Hi nickgt


Under TCP/IP enter these IP addresses..

For DNS server addr type the following (as shown):

192.231.203.132
192.231.203.3

(From Internode support web site. Any Internode users would you check your TCP/IP entries to confirm these addresses?)

Hope this helps.

Is the Billion modem saying that it's connected in the set-up web page?

Is the firewall in Mac OS X off?

Thanks for all the suggestions; unfortunately I have had no success.

I checked my Network settings and I had everything connected as per Danno's screen shots. I changed my MTU numbers according to Botox's suggestions, no luck there either. As teej suggested I attempted to ping google but it couldn't find the address. I couldn't even ping my DNS - "ping: sendto: No route to host" is the message it constantly spat out.

More advice on how to Ping my router modem (are you referring to my ISP address?) and ethernet negotiation settings (no idea what that is) would be appreciated, sorry but I need to be spoon-fed. I am quite confident I have been accurately following all advice received thus far...

Luren's advice returned no results and have also tried another application - my web mail.

My billion set up web page cannot even load so am not able to even get there with Currawong's question.

My firewall is off.


Any other ideas?

Hi

A Few questions

1. Is the Modem a Modem and router in one?

If this is the case you should be able to login to the router part of the device with info that woudl found in the manual. This will you to change the settings of the device which maybe causing your problems.

I was on adsl before I went to cable and had similar problems.

I had to use when on adsl PPPoe to be able to connect to anything.

If you could let me know this info I will be able to help further.

PM if you wish with any info which you think may be of help.

Rob

have you tried turning everything off for a minute or two, then turn on the modem, wait until all the lights appear and then turn on your mac.

I have an ADSL Modem/Router. I had a look in the manual - apart from it's numerous instructions on windows applications, there isn't any information on logging into a router.

I have logged off and on, in different order, may a time in the last three weeks.

Is there anyone who knows of any companies/indviduals whom are fairly inexpensive that provide a configuration service?

In the TCP/IP network prefs, what is the router address? See if you can ping that using the network utility. Does your IP address start with 144 or 169?

It sounds like you could have a dataflow issue between your Mac and your modem. When you returned the modem, did you write down the serial number or MAC address of it to verify you are not getting the same modem back? Have you tried the modem on another machine?