Re: Limited or no connectivity @ school

I have a similar connection issue.

Just moved into a new town house shared by 4 other people, all but one of
which have laptops. I was given a security code to access the secure wifi
network. All seems to go smoothly until it attempted to rectrieve an IP
address. That was the first time I noticed the 'Limited or no connectivity'
status message. I've browsed through the comments and suggestions made here,
but my situation is a little different. Hope you can suggest something.

I'm pretty good with this stuff normally, work in IT and all that. The other
guys/girls in the house know less than me re:wifi configs, but they managed
to connect first time, hastle free with the security code given to them by
the property manager. I've tried several times over the last weeks days since
moving in with limited success. I'm on XP SP2. First thing it tested was to
take down my personal firewalls. No effect. I would find it hard to beleive
that I'm being rufused on the grounds that the network is configured not to
accept IP requests from unknown users. Everyone would have had the same
problem otherwise. I seem to be connected to the router, but can't establish
an external connection with the internet. It always seems to time out and I
see the same local APIPA address. Where does the DHCP service reside, on the
router or the local telco switch? Like I said i'm not that familiar with wifi
nitty gritty. I'll talk with my property manager again but I think he knows
less than I do.

Any suggestions would be very much appeciated.

"q_q_anonymous@xxxxxxxxxxx" wrote:


Chuck wrote:
On 3 May 2006 18:20:36 -0700, "q_q_anonymous@xxxxxxxxxxx"
<q_q_anonymous@xxxxxxxxxxx> wrote:


Chuck wrote:
On Tue, 2 May 2006 08:18:02 -0700, JARUGGIERO
<JARUGGIERO@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

I have a HP laptop that I use both at my home office and at college...

My home network (two desktops and the laptop) works fine with auto assigned
DHCP...

For the entire year my wi-fi laptop worked fine at college, now I get the
error message "Limited or no connectivity"... The signal received is strong,
but I can't connect online...I did a network system scan that came back with
this IP address (which is not familiar) 169.254.254.120...

I do have SP2 Windows "Home Edition"...

Any help would be appreciated!

JAR

The 169.254.254.120 is an APIPA address.
<http://support.microsoft.com/?id=220874>
http://support.microsoft.com/?id=220874

You're not getting service from a DHCP server. Open the WiFi client program -
does it show an Access Point that you are associating with? Do you know whose
AP it is, and do you have permission to use it?

--

I don't know much abotu wireless. But , an AP is ilke a wireless
switch, right? or a wireless router?

When I want to connect to a wireless network, windows sees it. I've
never needed a 3rd party client. Not for wireless, not for dialup, not
for DSL. Windows does all that, doesn't it?

I'm not sure what your question there is. Are you asking if there is any need
for WiFi security? Or if there is a WiFi client program?


I meant what did you mean by WiFi client program.
I see you mean the thing built into windows .

I don't think that's a client. I am not much of an expert, (don't know
wireless protocols) , but I asked a friend that is, and he says it's
not a client.

I know that in the case of an 802.3 device connecting to a network, the
Connecting doesn't make it a client. Perhaps DHCP is used, so it's a
DHCP client, but not a connecting client. It's a host. My network
expert friend might use the term 'node' (I guess independent of
tcp/ip).
I guess you meant the wireless device is a client in terms of the
authentication protocol. But that's only a small part of what the prog
built into windows does. The first and main thing It does is it
connects to the Access point(wireless switch?). That doesn't involve
authentication. There's no client aspect there - according to an expert
friend.
I think calling it a client is a stretch,
I proposed that possiblity - that you meant authentication, to my
network friend, he agreed it's a stretch

Futhermore, (I didn't discuss this with my network expert friend, but)
, to call it wireless client program, - calling it a program, is a
stretch too 'cos it's so heavily integrated into windows, does it even
have an associated EXE? I don't think so, it just becomes visible when
you click on network connections! .

Not knowing much about wireless networks. (but knowing a little about
the theory with wired), your terminology had me rather puzzled. I'm v.
keen on correct terminology. So, i'd like to know if you still think
you are right.

Thanks

<snip>


.

Relevant Pages

  • RE: Wireless Security Notes and Findings (from this list and other places)
    ... There are two general areas of wireless security: Authentication and ... authentication standard that works with wireless networks. ... client computer runs a client program to connect to the network with a ...
    (Security-Basics)
  • Re: Lan Wifi Network
    ... >knowledge of computer network... ... a wireless user has gone away. ... client software to do the job. ... connection which can be timed. ...
    (alt.internet.wireless)
  • Re: Netgear WGPS606 <-> Netgear WGT624
    ... |>| A key principle of networking is to carefully plan the network first, ... It would have been just right had wireless ... | can't use a wireless client bridge as a wireless router. ... If I was wiring my house with coaxial ethernet, it would all be in one ...
    (alt.internet.wireless)
  • Automated wireless client penetration tool "hotspotter" released.
    ... During a wireless assessment for a customer some time ago, ... strange characteristic of the Microsoft Windows XP wireless client. ... for the EAP/TLS network, and a second for the "ANY" network, using an ... Automated penetration using Hotspotter ...
    (Bugtraq)
  • [Full-Disclosure] Automated wireless client penetration tool "hotspotter" released.
    ... During a wireless assessment for a customer some time ago, ... strange characteristic of the Microsoft Windows XP wireless client. ... for the EAP/TLS network, and a second for the "ANY" network, using an ... Automated penetration using Hotspotter ...
    (Full-Disclosure)