Hi

I have got a netgear dg814 router, which is connected to pipex. Up
until today, I had my laptop and pc connected through it. The laptop
is still fine, but I've swapped the usb ethernet connection from my pc
for a belkin ethernet card. I just cannot get any connection to the
router at all, although the port light and network card light are on.
I suspect it could be something to do with the fact that the mac
address will have changed? All my settings are configured for dhcp,
and the pc has detected the card fine. Can anyone help?

Many thanks in advance
Lisa

Lisa

If your Laptop still works then the adsl link is fine, so no worry there.

Why do you think it’s a mac address problem?

Have you change the dhcp scope on the dg814 to a smaller range, and then
locked each ip in the scope to a specific mac? If not and reboot of the
router and the pc do not resolve the issue it sound like a network
driver (or may be firewall if installed) problem on the PC.

Has the PC been allocated an ip address from the netgear ok?

Can the PC see the laptop?

Hope this gives you some ideas. If you need any more help either post
back to the group or direct via email
Regards

Andrew


LJH wrote:
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I'm speculating on the mac address, but on reflection, as far as the
router is concerned it is just another pc being plugged in, so it
shouldn't care, I guess?

The ip address on the pc was nothing like the scope on the netgear
box, so i gave it a static one within the range, but still no luck.
The problem is that I can't even access the router through a browser
from the pc, and looking at it from my laptop, the box doesn't know
about the pc. I do have mcafee firewall installed on the pc, but had
stopped all the services, even though it had seemed fine with the USB.
I have tried to revert back to the usb connection, but this doesn't
work now, either! What you mentioned here sounds interesting, but I'm
not too sure what you meant

"Have you change the dhcp scope on the dg814 to a smaller range, and
then
locked each ip in the scope to a specific mac?"

Are you indicating that I could hardcode the mac and ip address into
the box somehow?

Thanks....




Andrew Welham <unknown@dsl.pipex.com> wrote in message news:<4000356a$0$18034$cc9e4d1f@news.dial.pipex.co m>...

In news:2ff9f074.0401101602.62927ec0@posting.google.c om,
LJH <mail@lisa-hammond.fsworld.co.uk> muttered:

The router's obviously working, forget about the green lights, have you
tested the cable?

If the machine is set to acquire IP configuration using DHCP and fails, it
will assign itself an IP in the range 169.254.0.0 / 255.255.0.0

If you're not on the same subnet you won't be able to access the router
period (except for DHCP of course!).

Uninstall the firewall completely. If it's anything like ZoneAlarm, even
disabling it still leaves some components running.

Look again at the cable and ignore the link lights.

The DG814 doesn't support DHCP address reservations. However, it makes sense
to limit your DHCP scope to a sensible range anyway. As a guide, take mine
for example:

----------
"Use Gateway as DHCP server" - Enabled
Starting IP address: 192.168.0.2 (I leave 192.168.0.1 for Internet
Connection Sharing if needed)
Ending IP address: 192.168.0.199 (I leave 200-254 for static IP, don't use
255!)

"LAN TCP/IP Setup"
IP Address: 192.168.0.2
Subnet Mask: 255.255.255.0
"RIP Direction": Both
"RIP Version": RIP-1
----------

You may also want to upgrade the router firmware to 4.9 - it's the most
stable and bug-free release since launch and addresses most of the 'hanging
issues' with lots of UDP traffic.

However, I definately think you should play with cables to make sure you get
a working one.

Steve
--

Lisa

Firstly an apology Twinkletoes is correct the dg814 dose not have
reserved IP addresses in the dhcp scope. It’s the dg834 which has this
feature.
I don’t know how much you know about computers and networks, just ask if
you get confused (from what your saying I’m guessing your not a complete
novice).

The more I hear about this problem the more it sounds like a problem
with the NIC on the pc.

Can you try the following:

1. Use the network cable you use for the laptop in the back of the pc or
the laptop on the pc network cable. This will just make sure that the
network cable for both computers both works and the port on the dg 814
is working properly.

2. Dose the operating system running on the pc confirm the network cards
(NIC) is operating correctly.


3. Can you ping your self and the laptop (remember if this has a
firewall on it may stop this test) or router.

4. I am assuming the following

The dg814 has IP address 192.168.0.1 netmask 255.255.255.0
Since the laptop is obtaining an IP lease its details would be as
follows I guess
IP 192.168.0.2
Netmask 255.255.255.0
Broadcast 192.168.0.255 (may not be shown)
Default Route (default Gateway) 192.168.0.1

If this is correct try setting up the PC with the following details
IP 192.168.0.200
Netmask 255.255.255.0
Broadcast 192.168.0.255 (may not be shown)
Default Route (default Gateway) 192.168.0.1

5. If point 4 works set the IP allocation back to dynamic and try to
force dhcp IP address allocation using the ipconfig command (windows only)

Ipconfig /release
(This will release any dhcp allocated IP address only used to start off
in a clean state)

Followed IP

Ipconfig /renew

(This will request an IP dhcp IP address allocation may take several
minutes to return if it not returned with in 10 seconds it is likely to
fail.)


Followed by
ipconfig
(This will display the basic IP configuration)




Other questions

1. What operating system are you running on the pc?
2. What IP address is the pc showing as allocated?
3. The dg814 (I think will have a page showing connected devices what
dose this page display. I am guessing the pc is not showing.)
4. Is the OS on the PC displaying any errors?


Andrew

LJH wrote:

--
To reply via email, first reverse the address below then replace the
(at) with @ and the (dot) with .
moc(tod)xepip(tod)lsd(ta)spuorgswen_werdna

After following both sets of instructions, and setting up a fixed ip.
I can now at least ping the laptop and router from the pc and the pc
from the laptop, but still nothing in the browser (I can't get into
the router config either). I did forget to mention I'm running
windows xp. I then tried to revert back to dhcp, but the pc used its
own address again, as Steve suggested it does if it can't see the
router. I'd like to try the other suggestion where I set it to "Use
gateway as dhcp server" but where can I find this setting?

Thanks


Andrew Welham <unknown@dsl.pipex.com> wrote in message news:<400115FC.9080906@dsl.pipex.com>...

Ps, I still can't see the pc device though when looking at the router
settings from the laptop

"Twinkletoes" <.> wrote in message news:<RWYREA39EB6E@rowyerboat.com>...

Lisa

Well its sounding better. What did you do to fix the problem?

I’m assuming that both the pc and the laptop plugged directly in to two
different ports on the dg814, and there is not other switch/hub in between.

The fact that you can ping the laptop from the pc and visa verse, at
least suggests that the NICs are working and you have some if limited
connectivity.

Usually when this sort of thing happens where there is some
connectivity, but not every thing is working, it’s either a firewall/alc
problem. The other possible problem which could be occurring could be
the browser I assuming IE is looking for a proxy server rather than a
direct connection to the Internet (how ever this would not stop ips
being allocated via dhcp.

The DG814 has what is known as a Nat firewall. This should stop incoming
attacks.

(Before any other readers of this thread make comments. I know it will
not stop any active sessions initiated ffom the PC or the application on
the PC communicating to the outside world.)

In this case given the very very slim risk (assuming the NAT on the
DG814 is enabled and there is no port forwarding enabled) it should be
safe to disable the firewalls on the PC.

XP has a built in firewall is this disabled, also you mentioned other
firewalls are they disabled too? If not I would disable these for the
time being.

I’m assuming that dhcp was in use on you old configuration?

I am surprised that the static IP address did not allow access to the
Internet or configuration on the dg814. This oculd be a proxty setting
in IE.

Was I right about the ip addresses of the laptop and the dg814?


I can remember there us a dhcp section in the dg814 but as I currently
don’t have access to one I can’t help there Steve should know. As far as
I can remember its in the basic or lan settings.

One last question can you ping the dg814 from the PC?

Was I correct about the IP assignments for the dg814 and the laptop?

Hope this helps some more.

Andrew



LJH wrote:

--
To reply via email, first reverse the address below then replace the
(at) with @ and the (dot) with .
moc(tod)xepip(tod)lsd(ta)spuorgswen_werdna

Well, I'm very happy to report, I've finally got my pc up and running. I
removed the McAfee firewall completely, and after fiddling about a bit more,
up it came, and I'm now running happily on dhcp again.

Just wanted to say thanks a million for your help - couldn't have got there
without it.

Many thanks again
Lisa




"Andrew Welham" <unknown@dsl.pipex.com> wrote in message
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