Automatic private address in network connections

  • Thread starter Thread starter Moses
  • Start date Start date
M

Moses

I have two computers that can not access internet, or the
network. In network connections, I can click on LAN or
High Speed Internet, and in the Details section it states
that it is enabled and this:

IP Address:
169.254.x.y
Subnet Mask: 255.255.0.0
Automatic Private Address

What is this Automatic Private Address, and how do I get
rid of it? My other computer says 'Assigned by DHCP' and
it works fine. How do I change this one back to DCHP, so
it will also work.
 
I have two computers that can not access internet, or the
network. In network connections, I can click on LAN or
High Speed Internet, and in the Details section it states
that it is enabled and this:

IP Address:
169.254.x.y
Subnet Mask: 255.255.0.0
Automatic Private Address

What is this Automatic Private Address, and how do I get
rid of it? My other computer says 'Assigned by DHCP' and
it works fine. How do I change this one back to DCHP, so
it will also work.
Click to expand...

The 169. address indicates that your computer is set to obtain an IP
Address by dhcp but a dhcp server is not available or can not be connected
to. Check all connections and NIC.
 
-----Original Message-----
The 169. address indicates that your computer is set to obtain an IP
Address by dhcp but a dhcp server is not available or can not be connected
to. Check all connections and NIC.
.
Click to expand...
Everything is securely connected, and I've tried different
NICs, Also this is just a peer to peer network w/ no
server.
 
Everything is securely connected, and I've tried different
NICs, Also this is just a peer to peer network w/ no
server.
Click to expand...

Did you try ipconfig /renew? If so what was the result?
 
Moses said:
I have two computers that can not access internet, or the
network. In network connections, I can click on LAN or
High Speed Internet, and in the Details section it states
that it is enabled and this:

IP Address:
169.254.x.y
Subnet Mask: 255.255.0.0
Automatic Private Address

What is this Automatic Private Address, and how do I get
rid of it? My other computer says 'Assigned by DHCP' and
it works fine. How do I change this one back to DCHP, so
it will also work.
Click to expand...

Describe your LAN cabling a bit, and how you connect to the web:
do you have a simple (non-routing) hub or a router? Do both PCs
connect to downlink ports on the hub/router/switch? Does the
uplink port on the hub/router/switch go to a cable/DSL modem?
Are the cables all standard Cat5 cables, or are some crossover
cables?
 
I have a similar problem with one computer on a wireless
network. A Netgear router handles the DHCP chores, but
one of the computers can't see it. The network connection
status box on that computer says that it has an excellent
connection, but it's not getting any guidance from the
router. WEP is enabled on the router and computer, and
even if I enter a false key in the computer, it still says
that there is a good connection.

Connecting to the router with a cable works perfectly.
All of the other computers in the network connect well
wirelessly.
 
-----Original Message-----


Did you try ipconfig /renew? If so what was the result?
.
Click to expand...
An error occoured while renewing interface Local Area
Connection : An operation was attempted on somethingthat
is not a socket
 
-----Original Message-----


Describe your LAN cabling a bit, and how you connect to the web:
do you have a simple (non-routing) hub or a router? Do both PCs
connect to downlink ports on the hub/router/switch? Does the
uplink port on the hub/router/switch go to a cable/DSL modem?
Are the cables all standard Cat5 cables, or are some crossover
cables?
Click to expand...
Our Modem plugs into the WAN port of our router, and our
hub is connected through the uplink plug to the LAN port
on the router. Our computers are plugged stright into the
hub. We have no server, but just a peer to peer network
with six computers. We use the CAT5e cables, and no
crossover cables are used in the whole setup.
 
Moses said:
the web:


both PCs


Our Modem plugs into the WAN port of our router, and our
hub is connected through the uplink plug to the LAN port
on the router. Our computers are plugged stright into the
hub. We have no server, but just a peer to peer network
with six computers. We use the CAT5e cables, and no
crossover cables are used in the whole setup.
Click to expand...

The cable arrangement sounds OK.

Your router is, most likely, the DHCP server. Since 5 of your 6
PCs get a valid IPA, you should be able to swap stuff to see if
your problem is caused by one of these:
1. Bad port on the hub.
2. Bad Cat5e cable.
3. Bad NIC.
4. Bad DHCP params in the router - for this, use one of the good PCs
to log into the router to see if its DHCP params are sensible. It
is possible that the DHCP server is set to only assign 5 IPAs max.
It is possible that the router is set to filter out the MAC address
of the bad PC.

You should also verify that your hub can really handle 6 LANside ports
*and* a WANside port. Some N+1 port hub/switch/routers are constrained
such that they can handle N+1 LANside ports *or* N LANside ports plus
1 WANside port.
 
You must log in or register to reply here.

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Similar Threads

Unable to connect to wireless network 6
Problem with IP address 4
Wireless Connection Problem 4
Problems with a virtual private network 2
auto private addressing 2
DHCP failure to assign IP address (only 169.254) - how to fix? 1
Simple network wont work 1
ICS problem 6

Back
Top