18000

Invalid Format

The Communicator Web Access request is in an invalid format.

18001

Invalid Request

The Communicator Web Access request is an invalid request.

18100

Session Not Found

The Communicator Web Access session cannot be found.

18101

Request Throttled

The Communicator Web Access request has been throttled.

18102

Invalid Operation

The Communicator Web Access request has performed and invalid operation.

18201

OCS Failure Response

The Office Communications Server has failed to respond.

18202

Invalid OCS Message

The Office Communications Server has provided an invalid message.

18203

OCS Response Timeout

The Office Communications Server response has failed to complete within the allowed time.

18301

Connection Failed

The Communicator Web Access connection has been lost.

18302

TLS Failed

The Communicator Web Access Transport Layer Security (TLS) connection has failed.

18400

Internal Failure

The Communicator Web Access server has experienced an internal failure.

50000

AUTH_EVENT_ISAPI_STARTUP

The Communicator Web Access authentication module started successfully.

50001

AUTH_EVENT_ISAPI_SHUTDOWN

The Communicator Web Access authentication module was unloaded.

50002

AUTH_EVENT_INITIALIZATION_FAILED

The Communicator Web Access authentication module failed initialization during virtual server startup. The virtual server needs to be restarted after the problem has been corrected.

50004

AUTH_EVENT_MULTIPLE_USER_ENTRIES_FOUND

While a Communicator Web Access user was being authorized, multiple user objects for the user were found in Active Directory.

50005

AUTH_EVENT_HOME_SERVER_NOT_FOUND

The home server specified in the Active Directory service for a Communicator Web Access user could not be found.

50006

AUTH_EVENT_BIND_GC

An Lightweight Directory Access Protocol (LDAP) session has been established between Communicator Web Access and a global catalog server for performing user authorization.

50007

AUTH_EVENT_BIND_DC

An LDAP session has been established between Communicator Web Access and a domain controller for performing user authorization.

50008

AUTH_EVENT_BIND_DISCONNECT

Lost connectivity to an Active Directory server. An LDAP session with the Active Directory server was disconnected. Attempting to locate an available server and reconnect. If a reconnect is successful, a success event log will be posted.

50009

AUTH_EVENT_BIND_GC_FAILURE

An attempt to establish an LDAP session between Communicator Web Access and a global catalog server failed. When a connection is available, a success event will be posted.

50010

AUTH_EVENT_BIND_DC_FAILURE

An attempt to establish an LDAP session between Communicator Web Access and a domain controller failed. When a connection is available, a success event will be posted.

50011

AUTH_EVENT_LOGON_SERVER_UNAVAILABLE

No domain controller could be contacted when performing authentication during user sign-on.

50100

I_SERVICE_INITIALIZATION

The Communicator Web Access session service was started.

50101

I_SERVICE_SHUTDOWN

The Communicator Web Access session service was stopped.

50102

E_SERVICE_INTERNAL_FAILURE

The Communicator Web Access session service encountered an internal failure.

50103

E_SERVICE_MTLS_FAILURE

The Communicator Web Access session service cannot establish or maintain mutual TLS (MTLS) connection to the Office Communications Server.

50104

E_SERVICE_LCS_TRUST_FAILURE

The Communicator Web Access Server is not trusted by the Office Communications Server.

50105

E_SERVICE_LCS_CONNECTION_FAILURE

The Communicator Web Access Server is not able to connect to the Office Communications Server.

50106

E_SERVICE_ENDPOINT_EXCEP

The Communicator Web Access Server encountered an internal exception. The server has handled this event and will continue to run normally. If this event occurs frequently, please contact Microsoft Customer Service and Support to report the event.

50107

E_SERVICE_LCS_OPERATION_TIMEOUT

The Office Communications Server does not respond in a timely manner to requests from the Communicator Web Access Server.

50155

E_SERVICE_MTLS_CERT_NOT_CONFIGURED

The Communicator Web Access MTLS certificate is not configured.

50156

E_SERVICE_MTLS_LOCAL_CERT_NOT_FOUND

The Communicator Web Access MTLS local certificate cannot be found.

50162

E_SERVICE_MTLS_NEGOTIATION_FAILED

The Communicator Web Access MTLS negotiation with another server has failed.

50160

E_SERVICE_MTLS_REMOTE_CERT_EXPIRED

The Communicator Web Access MTLS remote certificate has expired.

50158

E_SERVICE_MTLS_REMOTE_CERT_INVALID_NAME

The Communicator Web Access MTLS remote certificate has an invalid name.

50159

E_SERVICE_MTLS_REMOTE_CERT_INVALID_USAGE

The Communicator Web Access MTLS remote certificate is being used inappropriately.

50161

E_SERVICE_MTLS_REMOTE_CERT_REVOKED

The Communicator Web Access MTLS remote certificate has been revoked.

50157

E_SERVICE_MTLS_REMOTE_CERT_UNTRUSTED

The Communicator Web Access MTLS remote certificate is not trusted by the root certification authority (CA).

50163

E_SERVICE_MTLS_REMOTE_DISCONNECTED

The Communicator Web Access MTLS remote connection has been terminated.

5

NoPollTimeout

The Communicator Web Access session timed out because the client did not send polling requests during the timeout period.

0

None

The session ID specified by the request does not exist.

3

OcsCommFailed

The Communicator Web Access communication with the Office Communications Server failed.

2

OcsSignInFailed

The Office Communications Server sign-in failed.

9

OcsSignOut

The Office Communications Server sign-out failed.

4

PollResponseFailed

The Poll Response failed.

8

ReInitiateRequired

The Communicator Web Access server needs initiation.

1

Terminated

The Communicator Web Access server has terminated the session.

7

TooManyEvents

The Communicator Web Access server has too many events to handle.

6

UserIdleTimeout

The Communicator Web Access user inactivity has timed out the session.

50200

POLICY_EVENT_CONFIG_INSTANCE_INVALID

A Communicator Web Access virtual server configuration instance was invalid and could not be loaded.

50201

POLICY_EVENT_SERVER_POLICY_NOT_DEFINED

When attempting to load the configuration policy, the policy instance for this Communicator Web Access virtual server could not be found.

50202

POLICY_EVENT_NO_POLICY_INSTANCES_FOUND

When initializing during startup, no valid policy instances were found in the WMI event store.

50203

POLICY_EVENT_POLICY_UPDATE_INVALID

A WMI policy instance change was detected and there was an error reading the resulting policy instance. Configuration instance was not properly defined in the WMI policy store.

50204

POLICY_EVENT_LANGUAGE_UPDATE_INVALID

A supported language configuration instance change was detected and there was an error reading the resulting instance. Supported language instance was not properly defined in the WMI policy store.

50205

POLICY_EVENT_LANGUAGE_INSTANCE_INVALID

A supported language instance in the WMI policy store was invalid and could not be loaded.

50206

POLICY_EVENT_CONFIG_INSTANCE_UPDATE

A virtual server configuration instance was successfully modified. Configuration instance in the WMI policy store was modified.

50300

E_DIRSRCH_BIND_SUCCESS

Communicator Web Access has established an LDAP session with a global catalog server for performing directory searches.

50301

E_DIRSRCH_BIND_DISCONNECT

Connectivity between Communicator Web Access and a global catalog server was lost. The LDAP session used for Directory Search was disconnected from global catalog server. The session is attempting to locate an available global catalog server and reconnect. If reconnection is successful, a success event will be posted.

50302

E_DIRSRCH_QUEUE_EXCEEDED

A Communicator Web Access Directory Search operation failed because it exceeded the configured maximum number of outstanding searches.

50303

E_DIRSRCH_BIND_FAILURE

A bind between Communicator Web Access and a global catalog server could not be established. When a connection to a global catalog server is available, a successful event will be posted.