Random loss of network resources

[Guest Snozz]

At random my win xp machines will seem to lose connectivity to network

shares hosted on Win Server 2003.

 

The win xp machine is joined to a .local domain hosted on the same

server as the network drive or Visual source safe database. Logging

off and logging back on reestablishes the connection, but this is

getting to be a huge annoyance. I seems to occur once a day at

varying times.

 

I have made sure that the power settings for my network adapter are

set to never turn it off.

 

Event viewer shows this:

 

Event Type: Warning

Event Source: LSASRV

Event Category: SPNEGO (Negotiator)

 

Description:

The Security System detected an attempted downgrade attack for server

cifs/pluto. The failure code from authentication protocol Kerberos

was "There are currently no logon servers available to service the

logon request.

 

And then this:

Event Type: Warning

Event Source: LSASRV

Event Category: SPNEGO (Negotiator)

Description:

The Security System could not establish a secured connection with the

server cifs/pluto. No authentication protocol was available.

[Guest Dave Patrick]

Re: Random loss of network resources

 

From a command prompt;

 

ipconfig /all

 

before and after may reveal something. Can you ping anything by name? by

address? Can any other machines ping this one?

 

 

--

 

Regards,

 

Dave Patrick ....Please no email replies - reply in newsgroup.

Microsoft Certified Professional

Microsoft MVP [Windows]

http://www.microsoft.com/protect

 

"Snozz" wrote:

> At random my win xp machines will seem to lose connectivity to network

> shares hosted on Win Server 2003.

>

> The win xp machine is joined to a .local domain hosted on the same

> server as the network drive or Visual source safe database. Logging

> off and logging back on reestablishes the connection, but this is

> getting to be a huge annoyance. I seems to occur once a day at

> varying times.

>

> I have made sure that the power settings for my network adapter are

> set to never turn it off.

>

> Event viewer shows this:

>

> Event Type: Warning

> Event Source: LSASRV

> Event Category: SPNEGO (Negotiator)

>

> Description:

> The Security System detected an attempted downgrade attack for server

> cifs/pluto. The failure code from authentication protocol Kerberos

> was "There are currently no logon servers available to service the

> logon request.

>

> And then this:

> Event Type: Warning

> Event Source: LSASRV

> Event Category: SPNEGO (Negotiator)

> Description:

> The Security System could not establish a secured connection with the

> server cifs/pluto. No authentication protocol was available.

>