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Routers and the Internet

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Name: timelsom
Date: February 4, 2003 at 18:01:08 Pacific
OS: XP
CPU/Ram: P4 2.4
Comment:

THE PLEA & CARROT!

Please help! Anybody who can provide me with the solution to the problem below, will get a crisp £50 note by return - I'm serious!!

MY SET-UP

I have a D-Link DSL-604+ wireless adsl router connected (wired) into my desktop and my adsl line (this router also contains an adsl modem). i have a laptop with a dwl-650+ card in also.

THE PROBLEM:

D-Link router seems to be working fine. I have entered all the ISP details required and the diagnosis test works okay, passes all four tests, i can ping external web-site ip addresses and it generally looks to be up and running. D-Link support seemed to think so too!

My desktop is running XP and as I said is wired to the router physically. Again, I'm pretty happy that the physical set-up is okay.

I can ping the router from the desktop okay, but I can't ping any external web-site IP's from the desktop and when i try internet exlporer i cannot access any web-sites at all.

I seem to have tried various combinations of automatically getting IP addresses, configuring internet connection settings, network wizards and so forth but to no avail. Any help leading to successful resolution will absolutely be worthy of my crisp £50 note sat here on my desk - given i've spent £300 on networking gear that's sat on my desk blinking and looking pretty but not much else!!

Yours hopefully, Tim




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Response Number 1
Name: homeflash
Date: February 4, 2003 at 20:26:35 Pacific
Reply:

It's DNS problem.. Check with your ISP, and make sure your DNS entry is correct


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Response Number 2
Name: Seawatch
Date: February 5, 2003 at 07:55:12 Pacific
Reply:

Win XP has a built in firewall that can cause you fits.

Make sure you disable it. If you need a firewall, after your connected get the free version of Zone Alarm or something like Black Ice Defender which are much better than what is built into XP.

Larry


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Response Number 3
Name: timelsom
Date: February 5, 2003 at 10:35:45 Pacific
Reply:

homeflash, larry, thanks for the ideas.

tried the dns route but they seem fine - at least the router is selecting the right dns addresses. i tired overtyping the same dns addresses in my network bridge under network connections but it didnt seem to help any.

larry, re: the internet firewall - what exactly do i need to do other than ensure the firewall is not checked in the network settings?

many thanks -the £50 is still up for grabs!


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Response Number 4
Name: Seawatch
Date: February 5, 2003 at 10:57:31 Pacific
Reply:

I'm not a Win XP guy but I believe that's all you need to do. Just reboot and check your Network Places.

But this seems like a router problem. Check to make sure you're not assigning a static IP or have PPPoE selected unless specificly told to do so by your ISP.

If you can't ping outside your network, you don't have a live connection. Whether that is because your router's misconfigured or the line has problems is something you'll have to try and troubleshoot a little farther.

But I'm confused. You say in one paragraph you CAN ping external web sites and then in the next paragraph you say you can't. Could you be a little more specific?

Larry


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Response Number 5
Name: timelsom
Date: February 6, 2003 at 08:42:10 Pacific
Reply:

Larry, Thanks for the message.

Using the router web-based configuration software on my desktop, I can ping an external web-site by IP address (the only way it lets me ping using this software). i.e. if i ping 212.58.240.110 via the router software, I get the proper response.
If I got to a command prompt on my desktop and try and ping the same ip address, it doesnt work - times out.
From the same command prompt, if I ping the router on 192.168.0.1 I get the proper response. i.e. my desktop seems to be able to see the router, my router seems to be able to see the outside world (and all the diagnosis tests pass when i run them on the router web-based software) but my desktop cannot see the outside world!

Is that any clearer? Not sure! Anyway, any further advice would be most gratefully received. I am convinced it is something pretty simple, probably my XP set-up which just isnt configured correctly!

(A couple more bits of info: Everything is set to automatically get IP and DNS addresses. When I first set installed the network card, it automatically created a Lan Network connection which seems to pick up an IP address etc. okay when it all fires up. When I tried running Netowrk Wizard - it creates a network bridge - which has little effect other than the IP, DNS now get generated within the bridge network connection rather than the Lan network connection, but it all seems to 'work' in the same way. i.e. not giving me the internet access through my desktop.)

Thanks in advance, Tim


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Response Number 6
Name: seawatch
Date: February 6, 2003 at 12:33:38 Pacific
Reply:

Try disabling DNS in your Network Settings.


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Response Number 7
Name: Matt Dean
Date: February 7, 2003 at 09:59:48 Pacific
Reply:

On one of your computers, try this: Go to Start, Run, type in 'cmd' and press enter (without quotes) then type 'ipconfig /release' and enter, then 'ipconfig /renew' and enter. If you get a message saying that a DHCP server is unavailable, go into your router's control panel and make sure DHCP is enabled. If you do not get the message, type in 'ipconfig' and press enter. Note if there's anything in the Gateway field. It should be the same IP as your router (192.168.0.1). If not, go into your network connection properties and choose TCP/IP protocol settings. Click on the Advanced button, then in the Gateways area, click Add. Put in the IP of your router (192.168.0.1) and a subnet mask of 255.255.255.0 (if it asks for it)
Leave the routing metric as is. Reboot and try to access the internet again.

Hope this helps!

Matt


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Response Number 8
Name: timelsom
Date: February 8, 2003 at 09:48:09 Pacific
Reply:

Matt, thanks for the detailed tips. I will try as you say and report back!

(Larry, the DNS suggestion didnt do mcuh, thanks anyway!)


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Response Number 9
Name: timelsom
Date: February 8, 2003 at 12:39:48 Pacific
Reply:

Matt, afraid your suggestion didnt seem to do much different. I attach all my settings below in case there is something obvious that somebody can spot is wrong.
Cheers, Tim

Router - Summary stats.

Multiple PVC
Index Item Name Interface VPI VCI
1 ISP1 ppp_device 0 38 Encapsulation PPPoA VC mux

IP Address Configuration IP Address 192.168.0.1
Subnet Mask 255.255.255.0
MAC Address 00:05:5d:7e:a6:ad
Proxy DNS enabled
Get DNS IP automatically enabled
DNS Server IP 213.120.62.104
DHCP Configuration enabled
UPnP State enabled
NAT Configuration disabled
DMZ State disabled
IP Filter State disabled
Date / Time disabled
Event Log enabled
Remote Administration Access disabled
Wireless Configuration WEP State Disabled
Access Control Disabled

Desktop PC's Network Connection

Local Area Network 2 Details:

Physical Address: 00-04-5A-7D-1D-03
IP Address: 192.168.0.3
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.0.1
DHCP Server: 192.168.0.1
Lease Obtained: 08/02/2003 20:11:43
Lease Expires: 11/02/2003 20:11:43
DNS Servers: 192.168.0.1, 213.120.62.98
WINS Server:

Authentication Tab:

IEEE 802.1x authentication enabled
EAP type: Smaert Card or other Certificate
Authenticate as computer when computer info available checked

Advanced Tab:
ICF not checked
ICS not shown

TCP/IP Properties:
Obtain an IP address automatically
Obtain DNS server address automatically

Advanced TCP/Ip Settings:
Ip Settings:
DHCP enabled
Default gateways: None
Automatic metric checked
DNS:
Server addresses (none shown)
Append these DNS suffixes (in order) selected:

Register this connections address in DNS checked
WINS:
Addresses (none shown)
LMHOSTS lookup enabled
NETBIOS setting - default


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Response Number 10
Name: Georges
Date: March 7, 2003 at 06:59:42 Pacific
Reply:

Hi,
I don't know if somebody found a solution but I would appreciate some help.
On a network of 6 W2K PCs and 1 W2K server, we have a problem with one PC. All the PCs have the same TCP/IP, DNS, DHCP configurations but one of them can't ping IP addresses or Domain name outside our LAN.
Tried TELNET, PING and TRACERT without success. The PC can access the internet using any browser but nothing else.
Any ideas?
thanks,
Georges


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