The Web Conferencing Server failed to send health notifications to the MCU factory at

After patching my Lync 2013 servers to November Updates I started getting flooded with the following errors:

• LS MCU Infrastructure 61035

You can follow this KB to sort this out:

• http://support.microsoft.com/kb/2901554/en-us
• Click Start, type regedit in the Start search box, and then click regedit.exe in the results list.
• Locate the following registry subkey: HKLMSystemCurrentControlSetControlSecurityProvidersSchannel
• Right-click Schannel, and then click New DWORD (32-bit) value.
  Type EnableSessionTicket, then press Enter.
• Right-click EnableSessionTicket, and then click Modify.
• Change the existing value to 2, and then press Enter.
  Exit Registry editor.
• Open the Lync Server Management Shell.
• Run the following Lync Server PowerShell commands in the given order:
  Stop-CsWindowsService
  Start-CsWindowsService

After that the errors should be gone.

Hope it helps.