Edit

QoS Policy Error and Event Messages

  • Article

Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016

Following are the error and event messages that are associated with QoS Policy.

Informational Messages

Following is a list of QoS Policy informational messages.

Attribute Value
MessageId 16500
Severity Informational
SymbolicName EVENT_EQOS_INFO_MACHINE_POLICY_REFRESH_NO_CHANGE
Language English
Message Computer QoS policies successfully refreshed. No changes detected.
Attribute Value
MessageId 16501
Severity Informational
SymbolicName EVENT_EQOS_INFO_MACHINE_POLICY_REFRESH_WITH_CHANGE
Language English
Message Computer QoS policies successfully refreshed. Policy changes detected.
Attribute Value
MessageId 16502
Severity Informational
SymbolicName EVENT_EQOS_INFO_USER_POLICY_REFRESH_NO_CHANGE
Language English
Message User QoS policies successfully refreshed. No changes detected.
Attribute Value
MessageId 16503
Severity Informational
SymbolicName EVENT_EQOS_INFO_USER_POLICY_REFRESH_WITH_CHANGE
Language English
Message User QoS policies successfully refreshed. Policy changes detected.
Attribute Value
MessageId 16504
Severity Informational
SymbolicName EVENT_EQOS_INFO_TCP_AUTOTUNING_NOT_CONFIGURED
Language English
Message The Advanced QoS Setting for inbound TCP throughput level successfully refreshed. Setting value is not specified by any QoS policy. Local computer default will be applied.
Attribute Value
MessageId 16505
Severity Informational
SymbolicName EVENT_EQOS_INFO_TCP_AUTOTUNING_OFF
Language English
Message The Advanced QoS Setting for inbound TCP throughput level successfully refreshed. Setting value is Level 0 (minimum throughput).
Attribute Value
MessageId 16506
Severity Informational
SymbolicName EVENT_EQOS_INFO_TCP_AUTOTUNING_HIGHLY_RESTRICTED
Language English
Message The Advanced QoS Setting for inbound TCP throughput level successfully refreshed. Setting value is Level 1.
Attribute Value
MessageId 16507
Severity Informational
SymbolicName EVENT_EQOS_INFO_TCP_AUTOTUNING_RESTRICTED
Language English
Message The Advanced QoS Setting for inbound TCP throughput level successfully refreshed. Setting value is Level 2.
Attribute Value
MessageId 16508
Severity Informational
SymbolicName EVENT_EQOS_INFO_TCP_AUTOTUNING_NORMAL
Language English
Message The Advanced QoS Setting for inbound TCP throughput level successfully refreshed. Setting value is Level 3 (maximum throughput).
Attribute Value
MessageId 16509
Severity Informational
SymbolicName EVENT_EQOS_INFO_APP_MARKING_NOT_CONFIGURED
Language English
Message The Advanced QoS Setting for DSCP marking overrides successfully refreshed. Setting value is not specified. Applications can set DSCP values independently of QoS policies.
Attribute Value
MessageId 16510
Severity Informational
SymbolicName EVENT_EQOS_INFO_APP_MARKING_IGNORED
Language English
Message The Advanced QoS Setting for DSCP marking overrides successfully refreshed. Application DSCP marking requests will be ignored. Only QoS policies can set DSCP values.
Attribute Value
MessageId 16511
Severity Informational
SymbolicName EVENT_EQOS_INFO_APP_MARKING_ALLOWED
Language English
Message The Advanced QoS Setting for DSCP marking overrides successfully refreshed. Applications can set DSCP values independently of QoS policies.
Attribute Value
MessageId 16512
Severity Informational
SymbolicName EVENT_EQOS_INFO_LOCAL_SETTING_DONT_USE_NLA
Language English
Message Selective application of QoS policies based on domain network category has been disabled. QoS policies will be applied to all network interfaces.

Warning Messages

Following is a list of QoS Policy warning messages.

Attribute Value
MessageId 16600
Severity Warning
SymbolicName EVENT_EQOS_WARNING_TEST_1
Language English
Message EQOS: ***Testing***[, with one string] "%2".
Attribute Value
MessageId 16601
Severity Warning
SymbolicName EVENT_EQOS_WARNING_TEST_2
Language English
Message EQOS: ***Testing***[, with two strings, string1 is] "%2"[, string2 is] "%3".
Attribute Value
MessageId 16602
Severity Warning
SymbolicName EVENT_EQOS_WARNING_MACHINE_POLICY_VERSION
Language English
Message The computer QoS policy "%2" has an invalid version number. This policy will not be applied.
Attribute Value
MessageId 16603
Severity Warning
SymbolicName EVENT_EQOS_WARNING_USER_POLICY_VERSION
Language English
Message The user QoS policy "%2" has an invalid version number. This policy will not be applied.
Attribute Value
MessageId 16604
Severity Warning
SymbolicName EVENT_EQOS_WARNING_MACHINE_POLICY_PROFILE_NOT_SPECIFIED
Language English
Message The computer QoS policy "%2" does not specify a DSCP value or throttle rate. This policy will not be applied.
Attribute Value
MessageId 16605
Severity Warning
SymbolicName EVENT_EQOS_WARNING_USER_POLICY_PROFILE_NOT_SPECIFIED
Language English
Message The user QoS policy "%2" does not specify a DSCP value or throttle rate. This policy will not be applied.
Attribute Value
MessageId 16606
Severity Warning
SymbolicName EVENT_EQOS_WARNING_MACHINE_POLICY_QUOTA_EXCEEDED
Language English
Message Exceeded the maximum number of computer QoS policies. The QoS policy "%2" and subsequent computer QoS policies will not be applied.
Attribute Value
MessageId 16607
Severity Warning
SymbolicName EVENT_EQOS_WARNING_USER_POLICY_QUOTA_EXCEEDED
Language English
Message Exceeded the maximum number of user QoS policies. The QoS policy "%2" and subsequent user QoS policies will not be applied.
Attribute Value
MessageId 16608
Severity Warning
SymbolicName EVENT_EQOS_WARNING_MACHINE_POLICY_CONFLICT
Language English
Message The computer QoS policy "%2" potentially conflicts with other QoS policies. See documentation for rules about which policy will be applied.
Attribute Value
MessageId 16609
Severity Warning
SymbolicName EVENT_EQOS_WARNING_USER_POLICY_CONFLICT
Language English
Message The user QoS policy "%2" potentially conflicts with other QoS policies. See documentation for rules about which policy will be applied.
Attribute Value
MessageId 16610
Severity Warning
SymbolicName EVENT_EQOS_WARNING_MACHINE_POLICY_NO_FULLPATH_APPNAME
Language English
Message The computer QoS policy "%2" was ignored because the application path cannot be processed. The application path may be invalid, contain an invalid drive letter, or contain a network mapped drive.
Attribute Value
MessageId 16611
Severity Warning
SymbolicName EVENT_EQOS_WARNING_USER_POLICY_NO_FULLPATH_APPNAME
Language English
Message The user QoS policy "%2" was ignored because the application path cannot be processed. The application path may be invalid, contain an invalid drive letter, or contain a network mapped drive.

Error Messages

Following is a list of QoS Policy error messages.

Attribute Value
MessageId 16700
Severity Error
SymbolicName EVENT_EQOS_ERROR_MACHINE_POLICY_REFERESH
Language English
Message Computer QoS policies failed to refresh. Error code: "%2".
Attribute Value
MessageId 16701
Severity Error
SymbolicName EVENT_EQOS_ERROR_USER_POLICY_REFERESH
Language English
Message User QoS policies failed to refresh. Error code: "%2".
Attribute Value
MessageId 16702
Severity Error
SymbolicName EVENT_EQOS_ERROR_OPENING_MACHINE_POLICY_ROOT_KEY
Language English
Message QoS failed to open the machine-level root key for QoS policies. Error code: "%2".
Attribute Value
MessageId 16703
Severity Error
SymbolicName EVENT_EQOS_ERROR_OPENING_USER_POLICY_ROOT_KEY
Language English
Message QoS failed to open the user-level root key for QoS policies. Error code: "%2".
Attribute Value
MessageId 16704
Severity Error
SymbolicName EVENT_EQOS_ERROR_MACHINE_POLICY_KEYNAME_TOO_LONG
Language English
Message A computer QoS policy exceeds the maximum allowed name length. The offending policy is listed under the machine-level QoS policy root key, with index "%2".
Attribute Value
MessageId 16705
Severity Error
SymbolicName EVENT_EQOS_ERROR_USER_POLICY_KEYNAME_TOO_LONG
Language English
Message A user QoS policy exceeds the maximum allowed name length. The offending policy is listed under the user-level QoS policy root key, with index "%2".
Attribute Value
MessageId 16706
Severity Error
SymbolicName EVENT_EQOS_ERROR_MACHINE_POLICY_KEYNAME_SIZE_ZERO
Language English
Message A computer QoS policy has a zero length name. The offending policy is listed under the machine-level QoS policy root key, with index "%2".
Attribute Value
MessageId 16707
Severity Error
SymbolicName EVENT_EQOS_ERROR_USER_POLICY_KEYNAME_SIZE_ZERO
Language English
Message A user QoS policy has a zero length name. The offending policy is listed under the user-level QoS policy root key, with index "%2".
Attribute Value
MessageId 16708
Severity Error
SymbolicName EVENT_EQOS_ERROR_OPENING_MACHINE_POLICY_SUBKEY
Language English
Message QoS failed to open the registry subkey for a computer QoS policy. The policy is listed under the machine-level QoS policy root key, with index "%2".
Attribute Value
MessageId 16709
Severity Error
SymbolicName EVENT_EQOS_ERROR_OPENING_USER_POLICY_SUBKEY
Language English
Message QoS failed to open the registry subkey for a user QoS policy. The policy is listed under the user-level QoS policy root key, with index "%2".
Attribute Value
MessageId 16710
Severity Error
SymbolicName EVENT_EQOS_ERROR_PROCESSING_MACHINE_POLICY_FIELD
Language English
Message QoS failed to read or validate the "%2" field for the computer QoS policy "%3".
Attribute Value
MessageId 16711
Severity Error
SymbolicName EVENT_EQOS_ERROR_PROCESSING_USER_POLICY_FIELD
Language English
Message QoS failed to read or validate the "%2" field for the user QoS policy "%3".
Attribute Value
MessageId 16712
Severity Error
SymbolicName EVENT_EQOS_ERROR_SETTING_TCP_AUTOTUNING
Language English
Message QoS failed to read or set inbound TCP throughput level, error code: "%2".
Attribute Value
MessageId 16713
Severity Error
SymbolicName EVENT_EQOS_ERROR_SETTING_APP_MARKING
Language English
Message QoS failed to read or set the DSCP marking override setting, error code: "%2".

For the next topic in this guide, see QoS Policy Frequently Asked Questions.

For the first topic in this guide, see Quality of Service (QoS) Policy.