Network adapter: diagnosis if damaged? (Urgent pls!)

[burton]

Hello,

Since I installed my router the browser only works when connected to this. When I connect my ethernet directly to the modem, I get a dnserror / page not found. Strangely though, on both connections my icq in the taskbar below works!

Is this a sign on my network adapter not working properly? I can ping to the localhost and ip address on both connections, but I can only ping to an external page (website) when connected via the router.

[litespeed14]

This may or may not help. Thought I would throw it out there, is simular to an issue I had.
 
Have you set your router from "Auto" to a  "DNS Addr from ISP"  Also in "My Network" Connection/ Prop/TCP Proto/Prop/Advance/? Make sure DNS is set properly and your default gatewy-WINS is in there also. The default gateway-DNS-DHCP are all usually the same Ex: 192.168.1.1

Hopes this may throw a little light at you.

[soybean]

When you first installed your router, did you have to change settings in your modem?  I have DSL; when I first got it, I connected directly to the modem.  Later, I added a router.  When I did that, I had to call my ISP and they guided me through a procedure of "bridging" the modem.  After that, I could get an Internet connection by connecting my computer directly to the modem, unless that "bridging" was reversed.

[burton]

thanks for your help guys 
at least it's another track to go by. 

@litespeed
My IP and DNS are assigned dynamically, aswell as the WAN IP address.
You say I should set a manual Domain Name Server (DNS) IP Address?

DHCP server functions are also enabled, does it need this? Dynamic routing settings are both on disabled (options: send / receive RIP)

@soybean
I have a cable connection and only called the ISP to try and solve this problem. They said everything was correct their end and it had to be a problem at my end, possibly the network adapter faulty.

When I said that the network adapter works fine with the router attached, they said it could still be a fault with the network adapter because the direct connection istnt working?

[soybean]

@soybean
I have a cable connection and only called the ISP to try and solve this problem. They said everything was correct their end and it had to be a problem at my end, possibly the network adapter faulty.

When I said that the network adapter works fine with the router attached, they said it could still be a fault with the network adapter because the direct connection istnt working?

I'm very skeptical of what your ISP said.  I believe that your network adapter either works or it doesn't, and I'd bet on that.  So, if it's working with your router, then it's working.  Period. 

I'll ask again, When you first installed your router, did you have to change settings in your modem? 

And, why are you going back and forth between using the router and not using it? 

[burton]

Hmm thats interesting about the ISP comment, thanks 

I couldnt change the modem settings as I dont have any modem panel in my browser. And on the router settings I have to keep everything to dynamical and no password or username needs to be put in like with a DSL connection. I am still not quite sure on what modem settings you think I could have changed, do you have an example? Otherwise I would say the answer is no, I only fiddled around with the router settings.
That is an advantage against DSL isnt it...  less settings need to be changed with cable?

The reason I am swapping is because the internet doesnt work on a direct connection, only through the router, as I already said. I dont want the router any more because the connection fails after about 20-40min., but comes back again immediately (loses connection when playing games).

[burton]

it could otherwise be the "ieframe.dll" file that is corrupt 
Worth redownloading? : http://www.dll-files.com/dllindex/dll-files.shtml?ieframe

[viking]

No, "redownload" not necessary.

By the way, games can connect to internet with or without router?
Have you tried an alternative browser? Opera, Mozilla Firefox?
If your ping works for remote servers, you have just a browser problem (I don't understand why, but it is just the browser that has gone nuts).

Network card defective? From what you just said, no, it's not broken, your network card is fine.

[burton]

Hi,

Thanks for your participation. Why is a replacement of ieframe.dll not necessary, is it not worth a try? Or is this too far fetched and a corrupted dll file not realistic here.

Yes I have tried firefox several times, same problem there. I just cannot connect to any external websites when connected directly via ethernet to the modem.... only with the router attached!.

I'll ask again, When you first installed your router, did you have to change settings in your modem? 

Soybean, I think I answered your question?

[soybean]

By the way, games can connect to internet with or without router?

So can web browsers, email clients, etc.

[viking]

soybean, you missunderstood my question (or maybe I was too evasive, I did not asked right the question) Maybe I should have asked something like:
Are you able to play a multiplayer game on internet when an internet browser does not work? Were you able to actually speak with somebody using ICQ when you  connected your computer directly to the modem or it was just the sign "I'm online"?
I would suggest you something else: maybe you need to restart the modem after you disconnect the router and connect the computer directly to the modem. Restart, I mean unplug the modem, wait a few moments, 30 seconds let's say, and then plug in the electric power.

soybean is partially right. I have seen a defective network card that worked "flawlessly" in the LAN, but it could not communicate through a router. A sign for a broken network card is when you see it's physical address to be the same character: FF-FF-FF-FF-FF-FF (replace F with anything you want). But a broken network card could present us a valid MAC.

[dahlarbear]

I can ping to the localhost and ip address on both connections, but I can only ping to an external page (website) when connected via the router.

1.  When connected directly to the modem, can you ping the numeric IP address of a web page, e.g. "64.29.201.21" for www.pcpitstop.com?

If so, you have connectivity to the web.

Can you ping the named address of a web site, e.g. www.pcpitstop.com?

If so, you have access to a DNS server that is correctly resolving the name to the numeric IP address.

If not, your issue is with DNS name resolution (i.e., you need valid DNS server addresses for the configuration of your TCP/IP connection.  As a test you could statically set your DNS server addresses to those of the OpenDNS servers:

    208.67.222.222
    208.67.220.220

And then ping "www.pcpitstop.com" to see if it resolves to a numeric IP address.

However, it's probably better if you fix your system to automatically pick up the DNS server addresses your ISP uses.


2.  If you can ping named web site address, but your browser can't reach it; you need to ensure it's setup to use direct connection and not proxy server.


3.  You don't mention the "ipconfig" command.  From a command window enter "ipconfig /all |more" and verify your TCP/IP configuration is correct.  Especially that you have valid DNS server addresses. 

Use the "ipconfig /release"  and "ipconfig /renew" commands to reset the dynamically assigned values.  The "ipconfig /?" should provide help for the commands.

Ensure the "Obtain an IP address automatically" option on the "IP Address" tab of the TCP/IP Properties windows for your connection is selected.  There are other TCP/IP Properties you should check but the setup manual for your Modem or from your ISP should explain what these should be for your operating system.


4.  The default gateway for your computer must be on the same network as your computer (per the IPv4 address).


5.  The ethernet cable between your computer and modem must be wired correctly (straight-thru or crossover).  I'm not sure which is correct for this configuration.


6.  Router Issue.  A little off topic, but have you checked to see if there is a "firmware" update for your router?  Maybe it would resolve the "connection fails".

I dont want the router any more because the connection fails after about 20-40min., but comes back again immediately (loses connection when playing games).

[burton]

Many thanks dahlarbear,

I have found the problem, it was because of Zonealarm. Even when I disabled it the connection wouldnt work, I had to deinstall it and then direct connection to the modem worked.

But still I'ld like to answer your questions, thats the least I can do ;-)
- no I couldd not ping the numeric IP addess of a web page (connection failed). The OpenDNS servers would have been a good option that I hadnt tried yet
- TCP/IP configuration under ipconfig /all was correct and I had 4-5 DNS server addresses.
- I had tried ipconfig /release and /renew several times without success
- "Obtain an IP address automatically" was set
- I had also done a firmware upgrade with no improvement

I still have 4 DNS Servers listed under "ipconfig /all", is that normal?

[dahlarbear]

I still have 4 DNS Servers listed under "ipconfig /all", is that normal?

I don't know.  All I can tell you is that I'm using Cox Cable broadband connection in San Diego, CA and they have always assigned me three DNS server addresses.  Currently I automatically pick up the following DNS server addresses:

    68.105.28.12
    68.105.29.12
    68.105.28.11

If I use a reverse lookup program on the numeric IPv4 address, they give me the registered information for that address.  If it appears to be related to Cox Cable, I assume it's valid.

Using "tracert" command on your DNS server addresses is always interesting.  It shows how many hops to the server and the delays at each hop.  You don't want alot of hops and you certainly don't need any bottlenecks in the route.