Skype Service Unavailable Please Try Again Later

Here are the description of MS-Diagnostic Errors you may see in Skype for Business logs when troubleshooting.

The following table details what string is displayed in the SIP protocol customer, depending upon what ms-diagnostic error is received for a given mode.

Note that the following placeholder is used in these messages:

§ [user name] is used in place of an actual user proper noun.

§ [client name] is used in place of the name of the SIP protocol client

Mode	Error ID	Error Message	Additional Information	Diagnostic reason
IM	0	This message was not delivered to [user proper name] because the service is not available.		Server internal fault.
IM	1	[user proper noun] could not exist reached and this bulletin was non delivered.		Service unavailable.
Briefing	4	The network is busy. Cannot join the meeting.		Insufficient bandwidth to constitute session. Do non attempt re-road.
Briefing	4	Cannot add [user proper name] to the meeting considering network is busy.		Insufficient bandwidth to establish session. Do not endeavour re-route.
Vocalisation	4	Could not consummate the telephone call because the network is busy. Effort again later.		Insufficient bandwidth to establish session. Do non endeavour re-road.
Voice	4	Cannot complete the transfer.	Transfer failed because the network is busy. Please attempt over again after.	Insufficient bandwidth to establish session. Practise not endeavor re-route.
Vocalisation	four	Could not add video because the network is busy. Try again later.		Insufficient bandwidth to plant session. Do not attempt re-route.
Vox	5	This call may take longer to connect considering the network is decorated. Some functionality may be reduced.	This call may accept longer to connect because the network is busy. Some functionality may be reduced.	Insufficient bandwidth to establish session. Attempt PSTN re-road.
Conference	1003	This online meeting cannot be found.	This online meeting cannot be found on the server. Delight check the meeting identifier and attempt again.	User does non exist.
Briefing	1003	[user proper name] cannot exist found. Delight bank check the address and try again.		User does not be.
IM	1003	[user name] could not be institute and this message was not delivered:		User does not exist.
Vocalism	1003	Cannot locate [user proper noun].	There may exist an mistake in the address. Check the address and then endeavour once more.	User does not exist.
Voice	1003	Cannot complete the transfer.	This phone number or address is incorrect, or it is outside of your organization and is not federated with your company. Please contact your support team with this information.	User does non be.
Briefing	1004	[user proper name] did not reply to the invitation.		Road fix is no longer valid.
Sharing	1004	Sharing ended due to network issues. Attempt again subsequently.		Route set is no longer valid.
Conference	1005	Cannot join this coming together from outside your organization.	Cannot join the meeting considering the meeting organizer is exterior of your organisation and is not federated with your visitor. Or, the meeting information may be wrong. Please contact your support team with this information.	Cannot route to destination domain.
Conference	1005	Cannot reach [user proper noun].	The address is wrong or this person is outside your visitor and not federated. Please contact your support team with this information.	Cannot road to destination domain.
IM	1005	This bulletin was non delivered to [user name] because the accost is outside of your arrangement and is not federated with your company, or the address is incorrect. Please contact your support team with this information.		Cannot route to destination domain.
Sharing	1005	[user name] did non receive your sharing invitation.	[user name] did not receive your sharing invitation considering the accost is incorrect or this person is outside your company and not federated. Please contact your back up squad with this information.	Cannot route to destination domain.
Voice	1005	Cannot locate [user proper noun].	This phone number or address is incorrect, or it is outside of your arrangement and is not federated with your company. Please contact your support squad with this information.	Cannot route to destination domain.
Sharing	1007	Screen sharing cannot connect to the server now.	Screen sharing cannot connect to the server now. Delight wait and try over again. If this outcome continues, contact your support team with this information.	Temporarily cannot road.
Conference	1008	Cannot join this meeting from outside your organization.	Cannot join the meeting because the meeting organizer is outside of your organization and is not federated with your visitor. Or, the coming together information may be incorrect. Please contact your support squad with this information.	Unable to resolve DNS SRV record.
Briefing	1008	Cannot attain [user name].	The accost is incorrect or this person is outside your visitor and not federated. Please contact your support squad with this information.	Unable to resolve DNS SRV record.
IM	1008	This message was not delivered to [user name] considering the address is outside of your organization and is not federated with your company, or the address is incorrect. Please contact your support team with this information.		Unable to resolve DNS SRV record.
Sharing	1008	[user name] did not receive your sharing invitation.	[user name] did not receive your sharing invitation because the address is incorrect or this person is exterior your visitor and non federated. Delight contact your back up team with this information.	Unable to resolve DNS SRV tape.
Voice	1008	Cannot locate [user proper noun].	This phone number or address is wrong, or information technology is exterior of your organization and is not federated with your visitor. Please contact your support team with this information.	Unable to resolve DNS SRV record.
Phonation	1008	Cannot complete the transfer.	This phone number or address is wrong, or information technology is outside of your organization and is not federated with your company. Delight contact your support team with this information.	Unable to resolve DNS SRV record.
Briefing	1009	Cannot join this meeting from outside your system.	Cannot join the meeting because the meeting organizer is outside of your organization and is non federated with your company. Or the meeting information may be wrong. Please contact your back up team with this information.	No match for domain in DNS SRV results.
Conference	1009	Cannot reach [user name].	The address is wrong or this person is outside your company and not federated. Delight contact your back up team with this data.	No match for domain in DNS SRV results.
IM	1009	This message was not delivered to [user proper noun] because the address is outside of your organization and is not federated with your company, or the accost is wrong. Please contact your back up team with this information.		No match for domain in DNS SRV results.
Sharing	1009	[user name] did not receive your sharing invitation.	[user name] did not receive your sharing invitation because the accost is incorrect or this person is outside your visitor and not federated. Delight contact your support team with this information.	No lucifer for domain in DNS SRV results.
Voice	1009	Cannot locate [user name].	This telephone number or address is incorrect, or it is outside of your organization and is non federated with your company. Please contact your support team with this information.	No match for domain in DNS SRV results.
Vocalization	1009	Cannot complete the transfer.	This phone number or accost is wrong, or it is outside of your organization and is not federated with your visitor. Please contact your support squad with this data.	No lucifer for domain in DNS SRV results.
Voice	1011	The telephone call could not be completed. Please try again subsequently.		Ms-diagnostics header not provided by previous hop.
Conference	3026	Cannot join the coming together equally an bearding attendee.	Cannot bring together the coming together because unauthenticated users are not immune. Contact the meeting leader for more information.	Conference does not allow bearding users.
Conference	3027	You do not have permission to join this meeting.	Cannot join the coming together because yous do non accept permission. Please contact the meeting leader for more than information.	User non immune in airtight conference.
Briefing	3028	Cannot bring together the meeting as an anonymous attendee.	Cannot join the meeting. Joining every bit an unauthenticated user is not supported. Contact your support team for more than information.	Anonymous access disabled globally.
Conference	3032	This online meeting cannot exist found.	This online meeting cannot be found on the server. Please check the meeting identifier and try again.	Conference does not exist.
Conference	3033	The conferencing service did not respond. Please wait and effort again.		The C3P transaction timed out.
Sharing	3033	The conferencing service did not answer. Please wait and try once again.		The C3P transaction timed out.
Conference	3040	The coming together you are trying to join has concluded.	The meeting yous are trying to bring together has concluded or does non be. Contact your back up team with this data.	Briefing is not active.
Conference	3041	Cannot join the meeting due to user permissions.	The information provided to the conferencing service was incorrect, or you may not accept permission to join the meeting. Contact your support team with this information.	Unknown participant.
Briefing	3043	Cannot join the meeting.	The meeting is not configured to allow people to join. Contact the meeting organizer for more than information.	The organizer policy is non configured or is invalid.
Conference	3044	Cannot bring together the meeting equally an anonymous attendee.	Cannot bring together the meeting because unauthenticated users are not allowed. Contact the meeting leader for more data.	Anonymous admission is non allowed.
Conference	3097	The conferencing service did not respond. Delight wait and effort over again.		No MCU is available via the MCU mill.
IM	3097	[user proper name] could not be reached and this bulletin was non delivered:		No MCU is available via the MCU factory.
Sharing	3097	Screen sharing cannot connect to the server now.	Screen sharing cannot connect to the server now. Please expect and effort once more. If this event continues, contact your support team with this information.	No MCU is available via the MCU factory.
Voice	3097	Call was unsuccessful.	The conferencing service is not available. Please wait and try once again. If this trouble continues, contact your support team.	No MCU is bachelor via the MCU mill.
Conference	3098	The conferencing service did not respond. Delight await and try again.		No MCU manufacturing plant bachelor.
Conference	3099	Cannot connect to this type of online coming together.	This coming together is not configured to allow people to join. Contact the meeting organizer for more information.	The requested media is non configured for this briefing.
Conference	3100	Meeting is total.	Cannot connect to the coming together because it is total. Contact the coming together leader for more information.	Maximum participant count for this meeting has been exceeded.
Briefing	3100	Cannot invite [user proper name] considering the meeting is full.		Maximum participant count for this meeting has been exceeded.
Sharing	3108	Screen sharing cannot connect to the server at present.	Screen sharing cannot connect to the server now. Please wait and try once more. If this upshot continues, contact your back up team with this data.	MCU is unreachable.
Sharing	3109	Screen sharing cannot connect to the server now.	Screen sharing cannot connect to the server now. Delight look and effort once again. If this issue continues, contact your support team with this information.	The asking was sent to the MCU only the C3P transaction timed out.
Sharing	3110	Sharing is disabled.		The MCU rejected addConference request. This unremarkably indicates a misconfiguration.
Briefing	3113	A presenter has ended the meeting.		Conference terminated – deleted.
Conference	3114	The meeting ended considering the hosts accept left.		Conference terminated – Enterprise user absent.
Conference	3115	This meeting was ended due to inactivity.		Conference terminated – inactivity.
Conference	3116	A presenter has ended the meeting.		Conference terminated – organizer ended session.
Sharing	3116	A presenter has concluded the meeting.		Briefing terminated – organizer ended session.
Conference	3118	You were removed from the coming together.	A presenter has removed you lot from the meeting. For more information, delight contact the meeting organizer or a presenter.	Participant removed.
Sharing	3118	Yous were removed from the coming together.	A presenter has removed you from the meeting. For more information, please contact the meeting organizer or a presenter.	Participant removed.
Conference	3119	You were non admitted into the meeting.		Participant denied.
Conference	3120	Call was disconnected.	The call was disconnected because the audio ended. This can happen if there are delays in the network. Try logging out of	Participant session expired.
IM	3122	This message may not have been delivered to [user proper name] because there was no response from the server.		The C3P asking sent to the MCU failed.
Sharing	3122	Screen sharing cannot connect to the server at present.	Screen sharing cannot connect to the server now. Please await and try again. If this issue continues, contact your support team with this data.	The C3P asking sent to the MCU failed.
Conference	3138	The subject line is too long.	The online meeting cannot be created because the subject is also long. Please shorten the subject and try over again.	The requested conference subject exceeds the maximum length.
Conference	3181	Meeting permissions are preventing you from joining.	The permissions set for this meeting require you to end your sound call before you lot tin join by using the meeting link. Please hang up and and so click the coming together link again. One time y'all have joined the meeting, you may phone call to join audio again if you need to.	Rich join is not allowed for lobby bypassed user.
Voice	4002	Cannot complete the call.	In that location is more than i contact with your phone number. If you cannot resolve this problem, contact your support team with this information.	Multiple users associated with the source phone number.
Voice	4004	The provided credentials are not authorized by the server.		Credentials provided are not authorized to human activity equally specified from URI.
Voice	4009	Cannot contact [user proper name].	At that place is more than than one contact with the same phone number. Endeavor calling over again. If you all the same cannot complete the call, contact your support team with this information.	Multiple users associated with the destination phone number.
Briefing	5001	The conferencing service did not answer. Please expect and effort again.		Request timed out.
Briefing	5001	Cannot reach [user proper noun]. Endeavour once again later on.		Asking timed out.
IM	5001	This message may not have been delivered to [user name] because in that location was no response from the server.		Request timed out.
Vox	5001	Call was unsuccessful.	The server timed out. Wait and try again. If the problem continues, contact your back up squad with this information.	Request timed out.
Briefing	5026	The conferencing service did not respond. Delight wait and try again.		Request was sent to Callee Client but it timed out.
Conference	5026	Cannot attain [user proper noun]. Effort once again subsequently.		Request was sent to Callee Client merely it timed out.
IM	5026	This message may not have been delivered to [user name] because there was no response from the server.		Request was sent to Callee Customer but it timed out.
Voice	5026	Call was unsuccessful.	The server timed out. Wait and try once more. If the problem continues, contact your support team with this information.	Asking was sent to Callee Client just information technology timed out.
IM	6000	[user name] could not be reached and this bulletin was not delivered:		SIP request send failed.
Conference	6001	[user name] did not respond to the invitation.		Request time-out.
IM	6001	[user proper name] could not exist reached and this message was not delivered:		Request time-out.
IM	6002	[user name] could not be reached and this bulletin was not delivered:		Dialog/Transaction does not be.
IM	6004	The message was not delivered. [user proper noun] is signed in to a device that cannot receive messages.		Media type is not supported.
IM	6005	This bulletin was not delivered to [user name] because the service is not available:		Invite session is non ready.
IM	6006	This message was not delivered to [user name] because the service is not available:		MCU is shutting down.
IM	6007	This message was not delivered to [user name] because the service is not available:		Conference URI not present in request.
IM	6008	This message was not delivered to [user name] because the service is not available:		Conference represented past a conference URI does not exist.
IM	6009	This bulletin was not delivered to [user name] considering it is likewise large:		Bulletin has exceeded maximum allowed length.
IM	6010	You are not authorized to ship messages to [user proper noun]. This message was not delivered:		Authorization failure.
IM	6011	[user proper noun] could not exist constitute and this bulletin was non delivered:		User non found.
IM	6012	[user name] could not be found and this bulletin was not delivered:		Participant is not expected to be incoming.
IM	6013	This message was not delivered to [user proper noun] because the service is non available:		Conference is terminated.
IM	6014	This bulletin was not delivered to [user name] because the service is not available:		Unexpected INVITE or reINVITE asking.
IM	6015	This message was not delivered to [user name] because this type of content could not exist received:		SDP is not adequate.
IM	6017	This message was not delivered to [user name] because it is too large:		INFO trunk has exceeded maximum allowed length.
IM	6024	[user name] cannot receive messages in the format yous used. This message was non delivered:		Message does non contain a format acceptable to the client.
Conference	7012	Cannot get-go the online coming together due to encryption issues.	The conferencing service does not back up the blazon of content encryption you lot are using. Contact your back up team for more information.	Cannot support media encryption required past client.
Voice	7012	Cannot start the online meeting due to encryption issues.	The conferencing service does not support the type of content encryption you are using. Contact your back up team for more than information.	Cannot support media encryption required by client.
Voice	7013	Cannot connect to the online meeting.	The conferencing requires content encryption to join the coming together. Contact your support team with this information.	SRTP-encrypted media required to bring together.
Voice	10006	Cannot connect the call due to a server error. Please effort over again		Proxy-side media negotiation failed.
Voice	10009	The server is non responding or cannot be reached. Delight try your call again later.		Arbitration server is shutting down.
Vocalism	10400	The telephone call cannot exist completed as dialed.	The call cannot exist completed as dialed. Verify the dialing rules for your organization and attempt over again.	Gateway responded with 400 Bad Request.
Voice	10503	The server cannot forward the call. Please try again.		Gateway responded with 503 Service Unavailable.
Vocalization	12000	The telephone call could not exist completed. Delight effort again later.	The call could not exist completed considering of a busy network. Please attempt again later on.	Routes available for this request but no available gateway at this point.
Voice	12001	Your organization does not support calling this number.		User policy does not contain telephone route usage.
Conference	12013	Conference does not let unauthenticated users to join from or dial out to another device.		Conference dial outs from bearding users disallowed.
Voice	12013	Conference does non permit unauthenticated users to join from or dial out to some other device.		Briefing dial outs from anonymous users disallowed.
Briefing	13002	[user name] cannot be reached and may be offline.		The routing rules did not issue in a final response.
Voice	13002	[user name] is unavailable or may be offline.		The routing rules did not effect in a final response.
Phonation	13002	Cannot complete the transfer.	Call was non transferred because [user name] cannot be reached and may be offline.	The routing rules did not issue in a terminal response.
Conference	13010	The network is busy. Cannot join the meeting.		Target rejected telephone call because of bandwidth congestion.
Conference	13010	Cannot add [user name] to the meeting considering network is decorated.		Target rejected call because of bandwidth congestion.
Vocalisation	13010	Could non complete the call because the network is busy. Try once again later.		Target rejected telephone call because of bandwidth congestion.
Voice	13010	Cannot complete the transfer.	Could not complete the phone call because the network is busy. Effort once again afterward.	Target rejected phone call because of bandwidth congestion.
Vocalisation	14005	Unable to place call. Please check the number and try again.		Could not find profile in internal lookup.
Conference	14010	Telephone call was non completed or has ended.	Cannot complete the call. To correct this problem you may need to provide an area code, a number to access an outside phone line, or a number to punch long distance. If you cannot resolve this problem, your system administrator may demand to change the geographic location on your user account or update the company dialing rules.	Unable to detect an verbal match in the rules set.
Briefing	14010	Cannot reach [user name].	The address is incorrect or this person is outside your company and non federated. Please contact your support squad with this data.	Unable to find an exact match in the rules prepare.
Voice	14010	Delight check the number and endeavour again.	The format of the number you lot dialed is non valid. Examples of valid dialing formats are as follows: 1+(555) 555-0123 (555) 555-0123 9+1+(555) 555-0123 011+ 12 34 56 78 99 If you proceed to be unable to successfully make a call, please contact your support team.	Unable to find an exact friction match in the rules set up.
IM	16002	This message was not delivered to [user name] because the message contents are restricted by policy. For more information, contact your system administrator.		Policy disallows message contents.
Sharing	21002	Attendees not allowed to share in this conference.		Attendees cannot share in this conference.
Sharing	21003	Sharing failed to connect due to network issues. Try again later on.	Sharing failed to connect because of network issues. Try once more later.	The media connexion with the client was lost.
Sharing	21004	This sharing has ended because some other type of sharing has started.		A presenter has started sharing content.
Sharing	21005	Application sharing ended because y'all joined from another client.		This user has joined the conference from another endpoint.
Sharing	21006	Application sharing failed considering media failed to set up correctly.		The RDP connection failed to institute.
Sharing	21007	Application sharing ended because the application sharing conference has concluded.		User removed because of briefing catastrophe.
Sharing	21008	Application sharing ended considering the server is shutting down.		The Application Sharing Conferencing Service is shutting down.
Sharing	21012	Sharing failed to connect due to network issues. Try again afterward.	Sharing failed to connect considering of network issues. Try again afterwards.	The media connection with the client was lost.
Voice	25001	This telephone call may take longer to connect because the network is busy. Some functionality may be reduced.	This phone call may have longer to connect considering the network is busy. Some functionality may be reduced.	Retrying via PSTN considering of bandwidth congestion.
Voice	26014	Cannot complete the phone call considering you are no longer an agent for [user name].		User non authorized to make outbound call on behalf of the Response Group.
Voice	26019	Service is temporarily unavailable.		Response Group settings constitute but is not agile.
Vocalization	35000	No phone call is parked at this number.	The number dialed is used for retrieving parked calls. No call is currently parked at this number. The call may accept been retrieved or it may accept ended. If not trying to retrieve a parked telephone call or know that the parked call is still parked, please check the number and try again.	Orbit not found.
Voice	35002	Cannot park call right now. Please try over again afterwards.		No orbits are available.
Vox	35007	Cannot park call right now. Please endeavour again after.		Park asking failed. Cannot establish a connection betwixt the Call Park application and the parkee.
Vox	35015	The call was ended while it was on concord.		Park time expired. terminating parkee call leg.

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