Windows cannot discover any computer or device

WINDOWS VISTA

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  • 1. Weird Network Discovery Reset Problem!
    I am using Vista Business, with a wireless connection to a private network. I have enabled network discovery in the Network and Sharing Center, and set the network type to private. Here is the problem: I can see & contact other computers on the private network with no problem - except that periodically, for some unknown reason, Network Discovery seems to turn itself back off. After that, when I try to connect to another system on my private network, I get a message that "Network discovery and file shareing are turned off. Network computers and devices are not visible. Click to change". So I click to turn network discovery back on, then I am able to use the network again with no problem - until the next time I need it when it again seems to have turned itself off and I repeat the process. This is very annoying! I have checked power settings for the wireless adapter and AntiVirus software (Avast), and event logs, with no indication of where or why discovery turns itself off. Does anyone know why this is happening and how to stop Network Discovery and file sharing from periodically turning itself off? Any ideas would be appreciated. Thanks, Ray
  • 2. Internet connection hangs up after a random time - only restart helps!
    Hello everyone, hope to get some help here.... My configuration is as follows: Windows Vista Ultimate 32bit PL (with all the automatic WU installed), ADSL connection (polish NET24 at Netia ISP) Sagem 800/840 USB modem Internet connection sharing for a second PC at home (laptop) cFosSpeed 4.0.4 Kaspersky Internet Security 6.0 As far as I've already read this is might be a common problem and might not be involved with the hardware and a type of connection. Ok, but to be specific: after a couple of minutes/hours (it occurs randomly) my internet connection asleeps! it means that I cannot display any website after a second (in Firefox neither IE7), however the connections already made (IMs like SKYPE) still works until I decide to restart this Skype or other Internet-demanding software; after a restart of an application it won't connect to its appropriate server) The only working Internet function which works is the PING. Reseting the connection does not help, resetting the modem either, as well as I have assured to have disabled saving energy feature in USB ports; The only way to solve the problem is to make a total reset of an Vista OS and then my Internet works properly but no one wknows how long (yesterday I did it 5 times during a 12h of working time) Internet connection sharing works at a second connected computer (laptop with XP) all the time, no matter if the Internet at Vista works or not (WTF?)
  • 3. firewall on vista
    hello i am using vista bussiness 32bit and when i connect to my wireless connection my firewall comes up not secured to a secure network can any body tell me way this is i am using a bt home hub it come with its own web key etc i keep it to automatic connection for every time i switch it on i am just getting a bit panicy now and i am also using windows live onecare which tells me about this problem. cheers shaun . will u be able to post the threads 2 XXXX@XXXXX.COM cheers
  • 4. Remoet Desktop custom MMC Snap-In
    Hi everyone I use on a Vista PC the server admin pack to locally administrate some of the funtions of the server 2003 machine. The "remote desktops" snap-in allows me to specifiy multiple connections on the left, and when clicking on one, open the related remote desktop on the right. All of it works fine, until I want to access one of the machines that uses a custom remote desktop port. typically it would just be the IP address or server name with a ":" and the port number (server01:4000) and would then use port 4000 for that connection. However in this remote desktops snaip in my custom mmc, it tells me I cannot put a colon....... anyone have any idea how I can use this snap-in and specifiy a port number ? Thanks

Windows cannot discover any computer or device

Postby Y19ocjFz » Sat, 09 Dec 2006 11:24:00 GMT

I am running Vista Enterprise (final version) in a domain environment I have 
turned on the Link-Layer Topology Discovery in local gp and domain gpo but I 
still get the error "Windows cannot discover any computer or device" I can 
browse in explorer to every machine on the network but it seems to want to 
communciate with microsoft.com.

I also do not get a full connection to the internet in Network and Sharing 
Center.  I can see my domain and I can connect to the internet and other PC's 
but when I try to repair the connection from domain to internet I get a 
"Windows cannot communicate with www.microsoft.com (207.46.19.30) the ping 
was successful but there was no response. I know this is because we are 
behind a Firewall but surely MS has thought of this and has a way around this?

Re: Windows cannot discover any computer or device

Postby Bruce Sanderson » Tue, 19 Dec 2006 15:52:38 GMT

Hmm, puzzling!  I don't have an exact answer, but perhaps there's something 
here that might give you some clues.

Not sure about the "cannot discover any computers" or "do not get a full 
connection to the internet in Network and Sharing", but none of  (well, none 
that I know of!) the Microsoft servers respond to "ping" requests, so the 
lack of response to ping from www.microsoft.com doesn't necessarily tell you 
anything.

Try another destination for ping, such as yahoo.com or google.com.

I turned on both those settings on my small domain at home (single LAN) for 
my Vista workstations and the "Network map" now displays and shows all of 
the Vista computers (before turning on these settings, I got the message 
that the network map was suppressed by default in the domain).  The actual 
"map" only shows "Vista -> Gateway -> Internet", but the other computers 
(including the Windows Server 2003 R2 Domain Controller) are listed at the 
bottom as "The following discovered device(s) can not be placed in the 
map.".

Have you verified that the GPO containing the settings is in fact applied to 
the Vista computer(s) using the gpresult command or the Group Policy Results 
wizard?  I assume you have a check mark in the "Allow operation while in 
domain" check box for both settings.

Also, check that the Network Discovery exception is enabled in the Windows 
Firewall configuration is Enabled.

What do you mean by "do not get a full connection to the internet in Network 
and Sharing"?  The only time I've seen that sort of thing (e.g. limited 
network connectivity) is when the computer could not get an IP address from 
DHCP, but then I would expect you wouldn't have domain connectivity either.

My router has a built in firewall and does NAT as well, so perhaps the issue 
is not related to the "firewall".
-- 
Bruce Sanderson MVP Printing
 http://www.**--****.com/ 

It is perfectly useless to know the right answer to the wrong question.









Re: Windows cannot discover any computer or device

Postby Bruce Sanderson » Thu, 21 Dec 2006 08:54:21 GMT

orry, I'm not familiar with "proxy" servers etc. Here's something to try,
if you haven't already, in IE, click Tools, Internet Options, select the
Connections tab, click LAN settings. There's a spot there for configuring a
"proxy server".

If you are in a Windows Domain, presumably the DNS server (often on the same
server as the Domain Controller role) is doing the nslookups for you, so you
don't need "Internet connectivity" from the Vista workstation itself to do
that.

I'm going to be out of town and most likely newsgroup incomunicado for about
10 days.
--
Bruce Sanderson MVP Printing
http://members.shaw.ca/bsanders

It is perfectly useless to know the right answer to the wrong question.



"c_hr1s" < XXXX@XXXXX.COM > wrote in message
news: XXXX@XXXXX.COM ...


Re: Windows cannot discover any computer or device

Postby pgn674 » Tue, 15 Apr 2008 02:24:59 GMT

Hey, future dwellers. If you've found this thread because you're getting
the "Cannot communicate with www.microsoft.com" error, I finally found
something for me that worked. Microsoft's 'KB937168'
( http://www.**--****.com/ ) describes a Winsock bug after
configuring Internet Connection Sharing, and gives a hotfix for it. You
have to request it, since it's not production quality yet I guess, but
they'll send you a link to it if you ask like the article describes.
This worked for me, and it might work for you, too.


-- 
pgn674
Posted via  http://www.**--****.com/ 


Re: Windows cannot discover any computer or device

Postby Robert L. (MS-MVP) » Tue, 15 Apr 2008 06:50:30 GMT

Thank you for sharing your experience with us.

-- 
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
 http://www.**--****.com/ 
How to Setup Windows, Network, VPN & Remote Access on
 http://www.**--****.com/ 






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2.Vista Computers Don't Discover other Vista Computers

I have two new Vista Computers, both running Vista Home Premium 64 bit. 
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Mapper and Responder enabled.  I can't figure out why they won't
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3.Vista computer does not discover XP computers

I have 3 computers on a wireless LAN, a Vista laptop, an XP laptop, an XP 
desktop.
In IE click Network Neighborhood on the XP computers and they display and 
can access shared files on the Vista laptop, and on each other.  In IE click 
Network on the Vista computer and all it shows is itself.  All computers are 
in same workgroup and since each XP computer sees all the others there seems 
to be no firewall issue.  On Vista computer, Network and Sharing Center > 
View Full Map shows all three computers plus the router.

Seems like I've had similar problems in the past that self-resolved somehow. 
 Any suggestions greatly appreciated.

4.Easy way to discover device model via SNMP ?

Hi,

I am writing a management software that would provide some
basic info about the device, monitor some preconfigured 
variables etc. I was under the impression that detecting
a device model would be as easy as doing an snmp query
of a correct oid (entPhysicalModelName). Everything worked
great for all of my cats: 2900, 3500, 2950, 3750 series,
it worked great for 1760, 2801, 3745, 3825 routers.
But when it came down to 7200 and 3600 series it was unable 
to detect the model. Doing an snmpget on entPhysicalModelName
for 7200 returned an empty string, doing an snmpawlk on 
.1.3.6.1.2.1.47.1.1.1.1.13 also gave no results. Ok, lets
try entPhysicalName, still nothing, and finally entPhysicalDescr
gave some usable results. With aironet APs even more trouble
entPhysicalModelName.1 is set but all I can see there is
garbage ? entPhysicalName is set correctly tough. The real
question here is there an esay way (the one that would work
for all cisco gear, well IOS based at least) to discover
the device model using snmp ?


-- 
Andrej Brkic
E-mail:  XXXX@XXXXX.COM 

5.Discovering DHCP linux device

Hi,

I have built a small linux machine that I take with me to work on
customer's sites, but one thing I would like is a way to detect the
machine on their network.

If I were the systems administrator there, I could go through the DHCP
server logs and find it.  But I'm not, and it just seems a little
unprofessional to have to ask for help to find my own hardware.

I know I could sniff the traffic and look for DHCP transactions, but
this is (by and large) a one time event which means I have to be
watching while the thing comes online.  And it is again a little
unprofessional as it is quite cumbersome to be poring through sniffer
data to find my own hardware.

What I would do is write a script with netcat that broadcasts the
device's presence periodically, and have another application on my
laptop to listen for these broadcasts.  As long as we're on the same
LAN I should be able to detect those broadcasts, and then I will know
the IP to manage the machine.

I can create this script, but I'm posting this to see if there are any
linux projects already underway that meet my requirements.  I know
that my NAS (Infrant) uses a similar approach to managing those
systems, so something like that would do the trick.

Thanks,

Paul

6. discovering the ip address of a device

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8. Problems discovering devices on the LAN



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