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Problème réseau (pour expert)

6 réponses
Avatar
Patrick Gagné
Bonjour, j'ai un controleur de domaine qui est aussi notre serveur DHCP et
DNS. Lors que certaines
personne (au hasard) tente de se connecter au serveur, un message d'erreur
apparait et nous indique
que le serveur est introuvable.Nous effectuons alors ipconfig /renew pour
ré-initialiser les paramètres
TCP/IP et tout se règle. Y-a-t-il quelque chose à faire pour que cela ne se
reproduise plus? J'ai aussi
comme problème régulièrement lorsque nous tentons d'envoyer des emails le
message d'erreur "relais interdit"
Nous effectuons la même manoeuvre (ipconfig /renew) et tout se règle!!
Quelqu'un à des suggestions?

--
Patrick Gagné
Courriel: gagne.patrick@sympatico.ca

Visiter mon site web: http://elricx.free.fr

6 réponses

Avatar
Resident
As-tu regarder le bail que ton serveur alloue au client ?
(DHCP Manager).

Est-ce que ton client est bien configurer en DHCP

-----Message d'origine-----
Bonjour, j'ai un controleur de domaine qui est aussi
notre serveur DHCP et

DNS. Lors que certaines
personne (au hasard) tente de se connecter au serveur, un
message d'erreur

apparait et nous indique
que le serveur est introuvable.Nous effectuons alors
ipconfig /renew pour

ré-initialiser les paramètres
TCP/IP et tout se règle. Y-a-t-il quelque chose à faire
pour que cela ne se

reproduise plus? J'ai aussi
comme problème régulièrement lorsque nous tentons
d'envoyer des emails le

message d'erreur "relais interdit"
Nous effectuons la même manoeuvre (ipconfig /renew) et
tout se règle!!

Quelqu'un à des suggestions?

--
Patrick Gagné
Courriel:

Visiter mon site web: http://elricx.free.fr


.



Avatar
Patrick Gagné
J'ai vérifier le bail....il est de 7 jours et les clients sont bien
configurer en DHCP.

"Resident" a écrit dans le message de
news:0dec01c360ba$b77bbff0$
As-tu regarder le bail que ton serveur alloue au client ?
(DHCP Manager).

Est-ce que ton client est bien configurer en DHCP

-----Message d'origine-----
Bonjour, j'ai un controleur de domaine qui est aussi
notre serveur DHCP et

DNS. Lors que certaines
personne (au hasard) tente de se connecter au serveur, un
message d'erreur

apparait et nous indique
que le serveur est introuvable.Nous effectuons alors
ipconfig /renew pour

ré-initialiser les paramètres
TCP/IP et tout se règle. Y-a-t-il quelque chose à faire
pour que cela ne se

reproduise plus? J'ai aussi
comme problème régulièrement lorsque nous tentons
d'envoyer des emails le

message d'erreur "relais interdit"
Nous effectuons la même manoeuvre (ipconfig /renew) et
tout se règle!!

Quelqu'un à des suggestions?

--
Patrick Gagné
Courriel:

Visiter mon site web: http://elricx.free.fr


.



Avatar
Patrick Gagné
Bon en générale le problème survient sur des poste Windows98SE et pour ce
qui est des cartes réseau en générale c'Est du 3Com 3C905,3C905TX,etc. Nous
utilisons des switch cisco.
"Olivier Priser" a écrit dans le message de
news:bhdgvm$jp7$
Bonjour,

Est-ce que tu peux faire la prochaine fois que ça t'arrive un IPCONFIG
tout

seul pour savoir quels paramètres avait pris ta machine.

On dirait quelle se trouvait sur un autre réseau....
As-tu un autre DHCP sur ce réseau (ton routeur par ex) ?

"Patrick Gagné" a écrit dans le message de
news:HTXZa.2715$
Bonjour, j'ai un controleur de domaine qui est aussi notre serveur DHCP
et


DNS. Lors que certaines
personne (au hasard) tente de se connecter au serveur, un message
d'erreur


apparait et nous indique
que le serveur est introuvable.Nous effectuons alors ipconfig /renew
pour


ré-initialiser les paramètres
TCP/IP et tout se règle. Y-a-t-il quelque chose à faire pour que cela ne
se

reproduise plus? J'ai aussi
comme problème régulièrement lorsque nous tentons d'envoyer des emails
le


message d'erreur "relais interdit"
Nous effectuons la même manoeuvre (ipconfig /renew) et tout se règle!!
Quelqu'un à des suggestions?

--
Patrick Gagné
Courriel:

Visiter mon site web: http://elricx.free.fr








Avatar
Clive Lumb
"Patrick Gagné" a écrit dans le message de
news:KuB_a.8337$
Bon en générale le problème survient sur des poste Windows98SE et pour ce
qui est des cartes réseau en générale c'Est du 3Com 3C905,3C905TX,etc.
Nous

utilisons des switch cisco.


Alors problème classique...
Il faut désactiver le "Spanning Tree" ou faire une rétouche dans la base de
registres.


Voilà (en anglais) ce que dit Microsoft

A Client Connected to an Ethernet Switch May Receive Several
Logon-Related Error Messages During Startup

Q202840


----------------------------------------------------------------------------
----
The information in this article applies to:

a.. Microsoft Windows 2000 Advanced Server
b.. Microsoft Windows 2000 Server
c.. Microsoft Windows 2000 Professional
d.. Microsoft Windows NT Server, Enterprise Edition version 4.0
e.. Microsoft Windows NT Server version 4.0, Terminal Server Edition
f.. Microsoft Windows NT Server versions 3.5, 3.51, 4.0
g.. Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0

----------------------------------------------------------------------------
----
IMPORTANT: This article contains information about editing the registry.
Before you edit the registry, make sure you understand how to restore it if
a problem occurs. For information about how to do this, view the "Restoring
the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key"
Help topic in Regedt32.exe.


SYMPTOMS
On a client computer that is connected to an Ethernet switch, you may
receive several logon-related error messages during Startup.

In the event log, you may receive the following error message:

5719 - No domain controller available
NOTE: The source of this error may be the NetLogon service and how the
NetLogon service sets up its secure channel.

Also, if you log on to the console before Startup has completed, you may
receive the following error message:
No domain controller was available to validate your logon.



CAUSE
This behavior can occur because some Ethernet switches have a feature that
checks the ports for a loop condition when the ports become active (the
Learning mode for the Spanning Tree Algorithm feature). If a loop is found,
all traffic is blocked from accessing the port. This process of checking for
a loop condition takes approximately 10 to 15 seconds during which the
Windows NT Workstation-based computer seems to be on the network, yet no
traffic is being passed. The NetLogon service packets (along with any other
traffic during that time) are lost.

If you have a hub at the end of the port, the hub has already brought the
port up. Your connection is only unsuccessful when your computer is
connected directly to the switch.



RESOLUTION
To resolve this behavior, disable the Spanning Tree Algorithm feature of
your Ethernet switch.

For information about how to disable the Spanning Tree Algorithm feature on
a switch, contact the switch manufacturer.



WORKAROUND
WARNING: Using Registry Editor incorrectly can cause serious problems that
may require you to reinstall your operating system. Microsoft cannot
guarantee that problems resulting from the incorrect use of Registry Editor
can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys and
Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete
Information in the Registry" and "Edit Registry Data" Help topics in
Regedt32.exe. Note that you should back up the registry before you edit it.
If you are running Windows NT or Windows 2000, you should also update your
Emergency Repair Disk (ERD).

To work around this behavior, on the clients add the following parameter to
the registry:

HKEY_LOCAL_MACHINESystemCcsServicesNetlogonParameters
Value Name: ExpectedDialupDelay
Data Type: Reg_Dword
Data Value is in seconds (default = 0)
Data Range is between 0 and 600 seconds (10 minutes)

This workaround forces the NetLogon service to pause for the specified
amount of time before the service attempts to establish its secure channel.

NOTE: Unless you reconfigure your switch, you may still experience the
symptoms described in the following Microsoft Knowledge Base article:
Q168455 DHCP Renewal Failures on Switched Networks

Avatar
Patrick Gagné
Ok, mais je tiens à préciser que le problème de logon au serveur domaine
affecte seulement les poste Win9x...et dans le texte de microsoft ils disent
que sa concernent les poste NT et 2000....????
"Clive Lumb" a écrit dans le message
de news:3f3b8096$0$6241$

"Patrick Gagné" a écrit dans le message de
news:KuB_a.8337$
Bon en générale le problème survient sur des poste Windows98SE et pour
ce


qui est des cartes réseau en générale c'Est du 3Com 3C905,3C905TX,etc.
Nous

utilisons des switch cisco.


Alors problème classique...
Il faut désactiver le "Spanning Tree" ou faire une rétouche dans la base
de

registres.


Voilà (en anglais) ce que dit Microsoft

A Client Connected to an Ethernet Switch May Receive Several
Logon-Related Error Messages During Startup

Q202840


--------------------------------------------------------------------------
--

----
The information in this article applies to:

a.. Microsoft Windows 2000 Advanced Server
b.. Microsoft Windows 2000 Server
c.. Microsoft Windows 2000 Professional
d.. Microsoft Windows NT Server, Enterprise Edition version 4.0
e.. Microsoft Windows NT Server version 4.0, Terminal Server Edition
f.. Microsoft Windows NT Server versions 3.5, 3.51, 4.0
g.. Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0

--------------------------------------------------------------------------
--

----
IMPORTANT: This article contains information about editing the registry.
Before you edit the registry, make sure you understand how to restore it
if

a problem occurs. For information about how to do this, view the
"Restoring

the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key"
Help topic in Regedt32.exe.


SYMPTOMS
On a client computer that is connected to an Ethernet switch, you may
receive several logon-related error messages during Startup.

In the event log, you may receive the following error message:

5719 - No domain controller available
NOTE: The source of this error may be the NetLogon service and how the
NetLogon service sets up its secure channel.

Also, if you log on to the console before Startup has completed, you may
receive the following error message:
No domain controller was available to validate your logon.



CAUSE
This behavior can occur because some Ethernet switches have a feature that
checks the ports for a loop condition when the ports become active (the
Learning mode for the Spanning Tree Algorithm feature). If a loop is
found,

all traffic is blocked from accessing the port. This process of checking
for

a loop condition takes approximately 10 to 15 seconds during which the
Windows NT Workstation-based computer seems to be on the network, yet no
traffic is being passed. The NetLogon service packets (along with any
other

traffic during that time) are lost.

If you have a hub at the end of the port, the hub has already brought the
port up. Your connection is only unsuccessful when your computer is
connected directly to the switch.



RESOLUTION
To resolve this behavior, disable the Spanning Tree Algorithm feature of
your Ethernet switch.

For information about how to disable the Spanning Tree Algorithm feature
on

a switch, contact the switch manufacturer.



WORKAROUND
WARNING: Using Registry Editor incorrectly can cause serious problems that
may require you to reinstall your operating system. Microsoft cannot
guarantee that problems resulting from the incorrect use of Registry
Editor

can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys
and

Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete
Information in the Registry" and "Edit Registry Data" Help topics in
Regedt32.exe. Note that you should back up the registry before you edit
it.

If you are running Windows NT or Windows 2000, you should also update your
Emergency Repair Disk (ERD).

To work around this behavior, on the clients add the following parameter
to

the registry:

HKEY_LOCAL_MACHINESystemCcsServicesNetlogonParameters
Value Name: ExpectedDialupDelay
Data Type: Reg_Dword
Data Value is in seconds (default = 0)
Data Range is between 0 and 600 seconds (10 minutes)

This workaround forces the NetLogon service to pause for the specified
amount of time before the service attempts to establish its secure
channel.


NOTE: Unless you reconfigure your switch, you may still experience the
symptoms described in the following Microsoft Knowledge Base article:
Q168455 DHCP Renewal Failures on Switched Networks





Avatar
Clive Lumb
Oops - j'ai dû copier la mauvaise page. Je peux vous confirmer que cela
affecte aussi (surtout) les postes Win98.
Chez moi j'ai remis les postes 98 qui posaient ce problème sur un ancien hub
et tout est rentré dans l'ordre.


"Patrick Gagné" a écrit dans le message de
news:uLL_a.8769$
Ok, mais je tiens à préciser que le problème de logon au serveur domaine
affecte seulement les poste Win9x...et dans le texte de microsoft ils
disent

que sa concernent les poste NT et 2000....????
"Clive Lumb" a écrit dans le
message

de news:3f3b8096$0$6241$

"Patrick Gagné" a écrit dans le message de
news:KuB_a.8337$
Bon en générale le problème survient sur des poste Windows98SE et pour
ce


qui est des cartes réseau en générale c'Est du 3Com 3C905,3C905TX,etc.
Nous

utilisons des switch cisco.


Alors problème classique...
Il faut désactiver le "Spanning Tree" ou faire une rétouche dans la base
de

registres.


Voilà (en anglais) ce que dit Microsoft

A Client Connected to an Ethernet Switch May Receive Several
Logon-Related Error Messages During Startup

Q202840




--------------------------------------------------------------------------
--
----
The information in this article applies to:

a.. Microsoft Windows 2000 Advanced Server
b.. Microsoft Windows 2000 Server
c.. Microsoft Windows 2000 Professional
d.. Microsoft Windows NT Server, Enterprise Edition version 4.0
e.. Microsoft Windows NT Server version 4.0, Terminal Server Edition
f.. Microsoft Windows NT Server versions 3.5, 3.51, 4.0
g.. Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0



--------------------------------------------------------------------------
--
----
IMPORTANT: This article contains information about editing the registry.
Before you edit the registry, make sure you understand how to restore it
if

a problem occurs. For information about how to do this, view the
"Restoring

the Registry" Help topic in Regedit.exe or the "Restoring a Registry
Key"


Help topic in Regedt32.exe.


SYMPTOMS
On a client computer that is connected to an Ethernet switch, you may
receive several logon-related error messages during Startup.

In the event log, you may receive the following error message:

5719 - No domain controller available
NOTE: The source of this error may be the NetLogon service and how the
NetLogon service sets up its secure channel.

Also, if you log on to the console before Startup has completed, you may
receive the following error message:
No domain controller was available to validate your logon.



CAUSE
This behavior can occur because some Ethernet switches have a feature
that


checks the ports for a loop condition when the ports become active (the
Learning mode for the Spanning Tree Algorithm feature). If a loop is
found,

all traffic is blocked from accessing the port. This process of checking
for

a loop condition takes approximately 10 to 15 seconds during which the
Windows NT Workstation-based computer seems to be on the network, yet no
traffic is being passed. The NetLogon service packets (along with any
other

traffic during that time) are lost.

If you have a hub at the end of the port, the hub has already brought
the


port up. Your connection is only unsuccessful when your computer is
connected directly to the switch.



RESOLUTION
To resolve this behavior, disable the Spanning Tree Algorithm feature of
your Ethernet switch.

For information about how to disable the Spanning Tree Algorithm feature
on

a switch, contact the switch manufacturer.



WORKAROUND
WARNING: Using Registry Editor incorrectly can cause serious problems
that


may require you to reinstall your operating system. Microsoft cannot
guarantee that problems resulting from the incorrect use of Registry
Editor

can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys
and

Values" Help topic in Registry Editor (Regedit.exe) or the "Add and
Delete


Information in the Registry" and "Edit Registry Data" Help topics in
Regedt32.exe. Note that you should back up the registry before you edit
it.

If you are running Windows NT or Windows 2000, you should also update
your


Emergency Repair Disk (ERD).

To work around this behavior, on the clients add the following parameter
to

the registry:

HKEY_LOCAL_MACHINESystemCcsServicesNetlogonParameters
Value Name: ExpectedDialupDelay
Data Type: Reg_Dword
Data Value is in seconds (default = 0)
Data Range is between 0 and 600 seconds (10 minutes)

This workaround forces the NetLogon service to pause for the specified
amount of time before the service attempts to establish its secure
channel.


NOTE: Unless you reconfigure your switch, you may still experience the
symptoms described in the following Microsoft Knowledge Base article:
Q168455 DHCP Renewal Failures on Switched Networks