All users unable to join Lync Online Meeting with multiple domain setup - IM, meetings and conferencing - Office 365

When clicking the link provided to join a Lync Online Meeting the following error displays:

(It may be worth pointing out that our O365 configuration includes 8 domains, and that the users domain (ethofy.com) is not the “active” O365 domain (ethofy.onmicrosoft.com)

Machine:SN20A00DIR01BrowserId:Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)Join attempted at:5/9/2012 7:27:56 AMError:Unable to find mapping for baseUrl in squid:https://meet.lync.com/ethofy/eddi.fey/9P4DWLQ6

All users are affected.

Hi Eddi,

Based on current situation, I suggest you to attend the meeting on another computer to see if this error persist.

As an alternative I suggest you Join a meeting from your computer with Lync 2010 Attendee.

Here is a help article about join a meeting using Lync 2010 Attendee:
http://office.microsoft.com/en-us/communicator-help/join-a-meeting-using-lync-2010-attendee-or-lync-web-app-RZ102498560.aspx?CTT=1&section=3

Besides, If you could not join a meeting scheduled in Outlook, I would like to suggest you to set up Microsoft Lync Online.
Here is the help articles about Set up Microsoft Lync Online:
Set up Microsoft Lync Online - Office 365 for enterprises
http://onlinehelp.microsoft.com/en-us/office365-enterprises/ff637586.aspx

Set up Microsoft Lync Online - Office 365 for professionals and small business
http://onlinehelp.microsoft.com/en-us/office365-smallbusinesses/ff652563.aspx

You may also need to remove your Lync Online license temporarily, wait for some time and then re-assign the license and check if it helps.

Thanks,
Larry He

This issue not isolated to one person or one PC. The issue effects our everyone in our company.

Hi Eddi,

I suggest you set up the desktop for Office 365 to see if this issue persist.
Set up your desktop for Office 365(Office 365 for enterprises):
http://onlinehelp.microsoft.com/en-us/office365-enterprises/ff637594.aspx
Set up your desktop for Office 365(Office 365 for professionals and small business):
http://onlinehelp.microsoft.com/en-us/office365-smallbusinesses/ff637537.aspx

Thanks,
Larry He

Hi Eddi,

How are things going on?
If you need more help, please feel free to contact us.

Thanks,
Larry He

Hi Larry, thanks for your reply and unsure how to contact you so I'll just leave this here. Yes, we are still unable to resolve this issue.

Is it required that we need to change our DNS Name Servers over to ns1.bdm.microsoftonline.com for our primary domain? We are currently using enom.

Thanks

Hi Eddi,

Thanks for your reply.

Before changing the name server records to point to Office 365, I would like to confirm if you are using Office 365 Enterprise version or Office 365 Small Business version?

If you are using Office 365 P plan, you may need to change name server records as the picture suggested.

Here is also a link about it for your reference:

Change name server records at a domain registrar

onlinehelp.microsoft.com/.../gg549203.aspx

Thanks,
Anna Guo

Hi Anna, we are using the Small Business version.

Hi Eddi,

Please make sure the DNS records is set up correctly.

Thanks,

Larry He

@ Eddi,

The relevant DNS records, such as, NS records must be right for Plan P user. So you can consider Ann's suggestion.

Hi Eddi,

If you need more help, please feel free to contact us.

Thanks,

Larry He