Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




2751 posts

Uber Geek
+1 received by user: 207


Topic # 22677 4-Jun-2008 22:51
Send private message

Hey,

I have a problem with an Xtra ADSL internet connection.
Emails and most sites work perfectly but there are suddenly a few sites that can't be reached.  Seems to have started faulting last Thursday the 29/05.
A few sites that I am having trouble reaching are www.companies.govt.nz, www.vodafone.co.nz and the Help page of nz.yahoo.com.
I can access the main nz.yahoo.com and most of the sub pages though Surprised

I have checked DNS settings, router settings, rebooted router etc but it has made no difference.
The problem is not isolated to one PC as there are about 30 PCs on the network that all have the same problem.

Doing a ping on sites that aren't accessible returns the IP address but times out.
Doing a tracert gets to around 8-10 hops then times out.

Spent about 45 mins on the phone to Xtra help and they kept trying to get me to make changes on a PC even though I told them it was not related to this one PC.
In the end I sent them the tracert results of a couple of the dodgy sites and hung up.

Does this sound like an Xtra routing issue or could we have a faulty ADSL router?




Create new topic
cisconz
1161 posts

Uber Geek
+1 received by user: 76

Trusted
Subscriber

  Reply # 135588 5-Jun-2008 07:39
Send private message

We have the same issue on one of our xtra connections.

We can not access one of our customers.




Hmmmm

70 posts

Master Geek


  Reply # 135831 6-Jun-2008 00:06
Send private message

I'm on telecom as well and the sites you mentioned work perfectly here.

 
 
 
 


4010 posts

Uber Geek
+1 received by user: 555

Moderator
Trusted
Subscriber

  Reply # 135858 6-Jun-2008 08:19
Send private message

Have you tried using another ISPs DNS servers?  Say TelstraClear or ICONZ?



2751 posts

Uber Geek
+1 received by user: 207


  Reply # 135870 6-Jun-2008 08:52
Send private message

gehenna: Have you tried using another ISPs DNS servers?  Say TelstraClear or ICONZ?


Thanks for the suggestion.
I had thought about that but I didn't think it would make any difference.
I just tried anyway and I was correct and it still won't work.

It looks like a routing issue not a DNS issue.
If I try to ping one of the sites that is not working it returns the IP address OK but times out on the pings.

The only other thing I might try is change the username and password in the ADSL router from the Xtra ones to my home Xnet ones and see if that makes any difference.




32 posts

Geek


  Reply # 135906 6-Jun-2008 10:21
Send private message

Pinging a web address isn't always guaranteed to generate a response. Have you confirmed that the IP address that is resolved is in fact the correct IP address, sounds silly, but always good to check.

It could still be a DNS issue but internal? How are the PC's on your LAN setup? Do you have a proxy and/or an local DNS server? Have Microsoft Small Business Server running?

I'm guessing you've tried plugging straight into the DSL Router, letting DHCP do the work or setting your network settings manually and heading to the same sites?

As a side note, the Companies Office website can be a bit frustrating at times, but is alot better now than what it was a few years back. They still persist in using that Java quick search tool though, it's not very quick at all.



2751 posts

Uber Geek
+1 received by user: 207


  Reply # 135947 6-Jun-2008 12:14
Send private message

Ashen: Pinging a web address isn't always guaranteed to generate a response. Have you confirmed that the IP address that is resolved is in fact the correct IP address, sounds silly, but always good to check.

It could still be a DNS issue but internal? How are the PC's on your LAN setup? Do you have a proxy and/or an local DNS server? Have Microsoft Small Business Server running?

I'm guessing you've tried plugging straight into the DSL Router, letting DHCP do the work or setting your network settings manually and heading to the same sites?

As a side note, the Companies Office website can be a bit frustrating at times, but is alot better now than what it was a few years back. They still persist in using that Java quick search tool though, it's not very quick at all.


Pinging www.companies.govt.nz gets an IP of 203.97.62.216.
Putting this into the browser still gets no page displayed.
If I put that IP into my browser at home it goes to the companies website.

The server is running Windows Server 2003 with DNS and DHCP services.
The machines are set to get the DNS server IP via DHCP, which is the server IP - 192.168.0.1
On the server in the DNS service the forwarder is set to the router - 192.168.0.80
The router gets DNS server IPs automatically which are Xtra's DNS servers.
This has been the setup for 2-3 years now with no problems.

I have tried setting DNS servers manually on the server to Xtra's and Xnet's DNS servers and made no difference on either.







32 posts

Geek


Reply # 135973 6-Jun-2008 13:31
Send private message

Hmmm..

Yup, sometimes things work without issue for a couple of years then no go. Keeps us in a job Surprised

Best bet is to try and isolate where the problem lies.

Setup a workstation or laptop to connect directly to the DSL router. From what I gather your settings should be:

IP: 192.168.0.??? (find a free IP in your range)
Sub: 255.255.255.0
Gateway: 192.168.0.80 (IP of router)
DNS: 202.27.184.3 and 202.27.184.5 (old Xtra DNS, should be fine, or your Xnet DNS if you like)

Then jump into a command prompt on that workstation and type ipconfig /flushdns (just to be sure!)

Make sure you don't have any proxy server settings set in Internet Explorer.

Give it a go, may help to isolate the problem.

What brand/model of router do you have? Doesn't have some funky auto firewalling features... and you've tried to reset it?




2751 posts

Uber Geek
+1 received by user: 207


  Reply # 135999 6-Jun-2008 15:11
Send private message

The router is a Draytek Vigor2800.
I have tried reseting it and disabling all firewall and p2p/IM blocking rules etc.






2751 posts

Uber Geek
+1 received by user: 207


  Reply # 141198 29-Jun-2008 13:04
Send private message

Update:

Well it turns out that it was Telecom that caused the problem.
They upgraded or updated the exchange and this caused an issue with the Draytek.
A firmware upgrade on the Draytek and everything is running fine again.  All sites accessible.




Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Public Wi-Fi plus cloud file sharing
Posted 18-Aug-2017 11:20


D-Link NZ launches professional Wireless AC Wave 2 Access Point for businesses
Posted 17-Aug-2017 19:25


Garmin introduces the Rino 700 five-watt two-way handheld radio
Posted 17-Aug-2017 19:04


Garmin announces the Foretrex 601 and Foretrex 701 Ballistic Edition for outdoor and tactical use
Posted 17-Aug-2017 19:02


Brightstar announces new distribution partnership with Samsung Knox platform in Australia
Posted 17-Aug-2017 17:07


Free gig-enabled WiFi network extends across Dunedin
Posted 17-Aug-2017 17:04


Samsung expands with connect Gear S3 Frontier
Posted 17-Aug-2017 15:55


Fact-checking Southern Cross Next cable is fastest to USA
Posted 17-Aug-2017 13:57


Thurrott says Microsoft Surface is dead last for reliability
Posted 16-Aug-2017 15:19


LibreOffice 5.4 works better with Microsoft Office files
Posted 16-Aug-2017 13:32


Certus launches Cognition
Posted 14-Aug-2017 09:31


Spark adds Cambridge, Turangi to 4.5G network
Posted 10-Aug-2017 17:55


REANNZ network to receive ongoing Government funding through to 2024
Posted 10-Aug-2017 16:05


Chorus backhaul starts with 2degrees
Posted 10-Aug-2017 15:49


New Zealanders cool on data analytics catching benefit fraud
Posted 10-Aug-2017 09:56



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.