Cannot access router

[quaxo]

I'm having a weird problem with my router (Netgear DG834G). Whenever I try to access it (192.168.0.1 like most routers) to change the settings, I get:

Network Error

A communication error occurred: "Operation timed out"
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.

I didn't have this problem before, and I've made no significant changes, other than installing Firefox. But both Firefox and IE are doing this. I can access it fine from my laptop, but my PC just keeps giving me this message. However, the PC has no problem accessing the network or internet through the router.

[Broni]

Did you try to reset router?
Do your laptop, and desktop use same type of firewall?

[quaxo]

Yes to both questions.

[Broni]

Try couple of command from Command Prompt:
- ipconfig /flushdns
- ipconfig /release
- ipconfig /renew

[dahlarbear]

1.  Netgear web site indicates "DG834G" is "54 Mbps Wireless ADSL Modem Router".

2.  Firewall.  For test purposes, disable or turn-off firewall.

3.  Using Firefox browser, now try to access "http://192.168.0.1".  If that doesn't work you might try "https://192.168.0.1", but I doubt you have it configured that way.

4.  DG834G Reference Manual, September 2005.  To access, use the following link for "dg834_g_b_manual_v2.pdf" on the Netgear website:

http://kbserver.netgear.com/pdf/dg834_g_b_manual_v2.pdf#xml=http://kbserver.netgear.com/inquira/default.asp?ui_mode=answer&prior_transaction_id=728918&action_code=6&highlight_info=352321584,5,9&turl=http%3A%2F%2Fkbserver.netgear.com%2Fpdf%2Fdg834_g_b_manual_v2.pdf&answer_id=32537734

From Chapter 9, subsection "Troubleshooting the Web Configuration Interface", page 9-3, see the following quote:

Make sure your browser has Java, JavaScript, or ActiveX enabled. If you are using Internet Explorer, click Refresh to be sure the Java applet is loaded.

5.  Firefox 2.0.0.9.  Recommend using Firefox because it's easier to find the configuration parameters.

    a.  From Firefox "Main Menu", left click "Tools" pull-down menu
    b.  Left click "Options" item
    c.  Left click "Content" icon at top of "Options" windows
    d.  For test purposes ensure both of the following are checked:  "Enable JavaScript" and "Enable Java"
    e.  Not sure if necessary, but shutdown Firefox and restart to ensure your changes are applied.

6.  Using Firefox browser, now try to access "http://192.168.0.1".  If that doesn't work try "https://192.168.0.1".

[quaxo]

Try couple of command from Command Prompt:
- ipconfig /flushdns
- ipconfig /release
- ipconfig /renew

No luck.

[quaxo]

1.  Netgear web site indicates "DG834G" is "54 Mbps Wireless ADSL Modem Router".

2.  Firewall.  For test purposes, disable or turn-off firewall.

3.  Using Firefox browser, now try to access "http://192.168.0.1".  If that doesn't work you might try "https://192.168.0.1", but I doubt you have it configured that way.

4.  DG834G Reference Manual, September 2005.  To access, use the following link for "dg834_g_b_manual_v2.pdf" on the Netgear website:

http://kbserver.netgear.com/pdf/dg834_g_b_manual_v2.pdf#xml=http://kbserver.netgear.com/inquira/default.asp?ui_mode=answer&prior_transaction_id=728918&action_code=6&highlight_info=352321584,5,9&turl=http%3A%2F%2Fkbserver.netgear.com%2Fpdf%2Fdg834_g_b_manual_v2.pdf&answer_id=32537734

From Chapter 9, subsection "Troubleshooting the Web Configuration Interface", page 9-3, see the following quote:

Make sure your browser has Java, JavaScript, or ActiveX enabled. If you are using Internet Explorer, click Refresh to be sure the Java applet is loaded.

5.  Firefox 2.0.0.9.  Recommend using Firefox because it's easier to find the configuration parameters.

    a.  From Firefox "Main Menu", left click "Tools" pull-down menu
    b.  Left click "Options" item
    c.  Left click "Content" icon at top of "Options" windows
    d.  For test purposes ensure both of the following are checked:  "Enable JavaScript" and "Enable Java"
    e.  Not sure if necessary, but shutdown Firefox and restart to ensure your changes are applied.

6.  Using Firefox browser, now try to access "http://192.168.0.1".  If that doesn't work try "https://192.168.0.1".

Still no difference. JavaScript and Java were already enabled, https:// made no difference, firewall or no firewall.

[dahlarbear]

1.  You should move to a "comand" window and test using the "basic" troubleshooting tools:  ipconfig, ping, arp.  Better to test without firewall to remove that as an issue.

2.  From the troublesome desktop, enter the following command and record the results:

    >ipconfig /all |more

Do you have just one ethernet adapter listed?

For the ethernet adapter corresponding to your network card, what do you have for the following?

    DHCP_Enabled:
    IP_Address:
    Subnet_Mask:

3.  From your desktop, attempt to "ping" the following TCP/IP addresses and record your results:

    ping 127.0.0.1
    ping <ip_address_of_desktop_computer>
    ping 192.168.0.1
   

4.  Within a few seconds after attempting "ping 192.168.0.1" enter the following command and record the results:

    arp -a

If you have an arp entry for 192.168.0.1 check to ensure the corresponding MAC address is that of your Netgear router.

[2k_dummy]

If you have more than one profile setup for your browser, Try accessing the the router using a different profile.

[quaxo]

1.  You should move to a "comand" window and test using the "basic" troubleshooting tools:  ipconfig, ping, arp.  Better to test without firewall to remove that as an issue.

2.  From the troublesome desktop, enter the following command and record the results:

    >ipconfig /all |more

Do you have just one ethernet adapter listed?

Yes.

For the ethernet adapter corresponding to your network card, what do you have for the following?

    DHCP_Enabled: Yes
    IP_Address: 192.168.0.2
    Subnet_Mask: 255.255.255.0

3.  From your desktop, attempt to "ping" the following TCP/IP addresses and record your results:

    ping 127.0.0.1
    ping <ip_address_of_desktop_computer>
    ping 192.168.0.1

127.0.0.1 and my comps IP both came back with identical results: bytes=32 time<1ms TTL=128
192.168.0.1 came back bytes=32 time<1ms TTL=255

As an added bonus, I pinged the desktop and router from the laptop as well, same results.

 
4.  Within a few seconds after attempting "ping 192.168.0.1" enter the following command and record the results:

    arp -a

If you have an arp entry for 192.168.0.1 check to ensure the corresponding MAC address is that of your Netgear router.

Checked and it is correct.

It's the computer I'm using now, so I know it's connected to the router and the net just fine, but for some reason it looks like the router isn't picking up the 192.168.0.1 from the browsers and directing it to the setup utility. Even my HP iPAQ is able to do it. 

[Broni]

Check your "hosts" file. Maybe something is blocked there.
Do you have any problem accessing any other website?
Maybe, there is a problem accessing numeric IPs....Can you access ComputerHope at:
http://204.228.150.3

[quaxo]

Check your "hosts" file. Maybe something is blocked there.
Do you have any problem accessing any other website?
Maybe, there is a problem accessing numeric IPs....Can you access ComputerHope at:
http://204.228.150.3

Absolutely no problems getting to any website at all.

The only entry in hosts is:

127.0.0.1       localhost

And yep, I can access CH through the IP address without a problem.

I am absolutely baffled by this.

[Broni]

I just checked Netgear site, and they suggest little bit different way to reset its router:
#  Unplug the router's power.
# Press and hold the reset button. While the button is held down, reconnect router's power.
# Continue to hold the reset button for 20 seconds after reconnecting the power.
# Wait for the router to reboot.

[quaxo]

Well, that's the weird thing. It only happens with the one computer, not anything else that access the router. I tried both my girlfriend's laptop and my iPAQ. Both worked fine.

So... I'm not sure resetting will fix it. I'll try it, but not at this very moment.

My internet login is stored in the router because it's an ADSL router, so it also controls my internet connection. It's been a long time since I entered in the username and password for my internet account. I'll have to call them tomorrow and see what they are before I reset or I won't be able to get back on 

[Broni]

Just in case:
http://kbserver.netgear.com/kb_web_files/N100651.asp