IP address changing

[Sulasno]

I am connected to a LAN to connect to the Internet and my IP address is
1.1.1.x
recently I have the following experience;
After being able to logon to the LAN, sometimes I cannot access the
Internet.
Tried checking my IP address, using ipconfig, I found that my IP address
changed to 169.x.x.x
Did a search of who is 169.x.x.x and found that the IP belongs to someone,
though the owner may not be ware

I suspect that the main server is being compromised or am I wrong?

Are there any tools which can monitor the IP address and warns if connection
is being changed?

Intend to run anti spyware to see whether my system has been compromised

 

[Malke]

I am connected to a LAN to connect to the Internet and my IP address is
1.1.1.x
recently I have the following experience;
After being able to logon to the LAN, sometimes I cannot access the
Internet.
Tried checking my IP address, using ipconfig, I found that my IP address
changed to 169.x.x.x
Did a search of who is 169.x.x.x and found that the IP belongs to someone,
though the owner may not be ware

I suspect that the main server is being compromised or am I wrong?

Are there any tools which can monitor the IP address and warns if connection
is being changed?

Intend to run anti spyware to see whether my system has been compromised

Your interpretation of the meaning of the 169.x.x.x is incorrect. When
you get this IP address it means that your machine is set to receive its
IP address via DHCP and it is not finding the DHCP server (or the DHCP
server isn't assigning it an IP address). Since you didn't say anything
about your network setup except that you are on a Local Area Network
(LAN), that's as specific as I can get. If you have a router that is
doing DHCP, then the router might be failing. If you are on a domain and
the domain server is also doing DHCP (as opposed to the more normal
situation of static IPs on the workstations and DNS provided by the
server) then you need to look at errors on the server. If you are
connecting wirelessly, then we would need to know what wireless hardware
is involved.

As always, it is most helpful to ask yourself the First Question of
Troubleshooting: what changed between the time things worked and the
time they didn't?

If this is a work situation, you should simply tell your IT Dept. that
your computer is failing to get an IP address and let them do the
network troubleshooting. If you don't have an IT Dept., then post back
with a more complete description of your network, including the hardware
used.


Malke

 

[Sulasno]

thanks for the response
found that someone on the LAN used the connection as a games server and when
the plug is pulled,
everything is fine
case of kiddie scripts

 

[Malke]

thanks for the response
found that someone on the LAN used the connection as a games server and when
the plug is pulled,
everything is fine
case of kiddie scripts

Glad you got it sorted. Thanks for taking the time to post back.


Malke