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Can ping fqdn but cannot browse

By MALECKEN ·
I have two Win2K machines( 1 desktop, 1 laptop) connecting by air to a Linksys Wireless router. Linksys is connected to SBC Yahoo DSL router. Desktop is on web fine (using IE6 or Yahoo browser). Laptop can ping fqdn, tracerts show it connecting to servers all over the place, but IE6 or Netscape get nothing. Both machines appear to have the same IP and IE6 (128 bit cipher strength)etc. config. I am embarrased to ask this question, as I have been a net admin for years and solved much more difficult problems than this.(but I'm probably not the only one who has ever felt this way :) Help, Tech Republic !

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by Joseph Moore In reply to Can ping fqdn but cannot ...

You don't have proxy server settings in IE and Netscape, do you?
If you can PING a FQDN successfully, then your system is getting an IP and DNS entries, and connectivity is good.
So, it is a browser setting thing.
So, check for false proxy settings. Start there.

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by [YG]Sharza In reply to Can ping fqdn but cannot ...

Now Im quite confused about you stating that both machines have the same IP...

Usually two machines in a network can have the same IP, but depending on the complexity and routing tables for the network, usually only one will function 100% correctly regarding network actions...

Try the browser settings as said in answer #1... if you cant get it to work, try enabling the DHCP server in the router, and set dynamic IP's.
Also make sure that the routers are not set up at the same IP's... which is often the case with most routers for home use set to standard 192.168.1.1

I guess for the linksys router u only use the switch right? Just make sure the uplink cable configuration is right...

I have sometimes encountered when uplinking several routers, switches and hubs, that u might need to retry the connection several times, before the network connection (to the WAN) gets properly established, however afterwards, it will work flawlessly...

This was just a few suggestions, you could try to post some more detailed info if it still doesn't work.

L8r,
Kenneth

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by tamj123 In reply to Can ping fqdn but cannot ...

First, Change the IP addres on Laptop to different one. It is good idea to user DHCP service, even for home network.
second, check Internet option setting, I don't think you got proxy server service at home, make sure it is uncheck.
third, check Linksys wireless router setting.

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by MALECKEN In reply to Can ping fqdn but cannot ...

No two machines have the same IP address :) I meant they had the same subnet mask, default gateway, they are on the same network, etc. DNS is Linksys IP, not using DHCP. There are no proxies defined in the IE config. All boxes in IE6 LAN config dialog are UNchecked. Desktop is on the web fine using air connection to Linksys, so I don't think Linksys config is wrong. Only config difference I see is that Laptop has a DUN connection shown in Control Panel\Internet Options\Internet Connections\Properties. "Never dial a connection" is checked. I think this setting is independent of LAN settings, and should have no effect on web access, but maybe I'm wrong. Hope this helps. Thanks for the responses !!

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by CG IT In reply to Can ping fqdn but cannot ...

hummm wired I know wireless I don't. Question, is your linksys wireless connected to the SBC Yahoo "modem"???? or SBC Yahoo "router"?? Modems and routers are not the same. Further are you using Static or Dyanmic IP addressing ???? if dyanmic ip addressing from the router which one is providing DHCP services???

Also, as Joe says if you can ping, you have connectivity therefore it's likely the problem is probably the browser settings. I believe that IE and Netscape both have different configuration requirements to use the linksys router [the linksys documentation should provide you with the correct way to setup the browsers to use the router].

If all else fails dump the DHCP from the router, setup Static IP addressing for each computer use the router ip address as the default gateway use your ISP DNS addresses [the router will have that info] set your IE browser LAN connection setting with all boxes unchecked ans you should have IE working. Netscape I dunno don't like it so I don't use it.

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by CG IT In reply to

yes the "never dial a connection" should be checked because the browser's connection configuration initiates the method of making an internet connection when it's opened. If it was checked, then dial up connection method would start.

After reading your additional information, I would still say it's a browser problem but I'm really up on wireless. Paranoid about security on wireless. God knows whether the neighbors are intercepting it cuz one never really knows. people are weird.

Only suggestion I have is start from the beginning with the troublesome computer [leaving the good one off] and setup step by step. verify connectivity via cmd prompt ping to your ISP. If you have connectivity and the browser doesn't work, it's a browser problem. Microsoft might have a Tech article in 801 Wireless problems.

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by CG IT In reply to

humm DNS shouldn't be the Linksys router. Here's the setup for network connections, NIC properties. IP address 192.168.1. <2 through 253> pick one except #1 as that is the router IP address unless you change it. No to "items" [computers etc] can have the same IP address on the same network. The submaks should fill itself in with 255.255.255.0 The default gateway is the router IP address of 192.168.1.1 [linksys usually uses this as the default setting. Check the documentation that came with the router. It will tell you what the default IP address is].

DNS is your IPS DNS server. Your router has to communitcate with your ISP with verification/ authentication [usually via your MAC address]. Also your linksys router usually has an option for obtaining an IP address dynamically OR if you have a static one, setting it manually. If you didn't buy a static IP, then make sure this option is enabled. As I mentioned above, some ISP's use the MAC address for verification/authentication that your machine can get a IP address from them. Your linksys router has a MAC clone option where you Clone the MAC address you gave your ISP so that the router appears as the "single computer" you signed up your service with.

Again is you have DNS as your router IP address, clear that and put in your ISP's DNS server IP address. That information is available on your router's setup pages [providing that your router is connected to your DLS Yahoo modem. The router automatically collects that information and displays it on the status page.].
That about wraps it up. If you still have problems, dump the wireless and go wired. Lot less headache. IMO wireless is nothing more than a marketing hype to get people to buy stuff cuz it's new, "in thing". New and In maybe be cool, but probably isn't better and may in fact be worse [security].

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by MALECKEN In reply to Can ping fqdn but cannot ...

No two machines have the same IP address :) I meant they had the same subnet mask, default gateway, they are on the same network, etc. DNS is Linksys IP, not using DHCP. There are no proxies defined in the IE config. All boxes in IE6 LAN config dialog are UNchecked. Desktop is on the web fine using air connection to Linksys, so I don't think Linksys config is wrong. Only config difference I see is that Laptop has a DUN connection shown in Control Panel\Internet Options\Internet Connections\Properties. "Never dial a connection" is checked. I think this setting is independent of LAN settings, and should have no effect on web access, but maybe I'm wrong. Hope this helps. BTW-I DID mean Yahoo modem, not router :) Thanks for the responses !!

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by Chris910 In reply to Can ping fqdn but cannot ...

Check the firewall settings in the linksys router, it is capable of directing all inbound port 80 traffic to a specific machine.

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by NBP Backup In reply to Can ping fqdn but cannot ...

I am having the same problem with a wired network connection. So I am interested in the answer you received to this question, but can't find it on the web site. Would you mind sharing the answer?

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