“Failed to read the allow and block list data” in Live Communication Server

When you experience this error message while trying to “Edit allow and block list” of a user, the solution is in the DNS.

To correct this issue, simply create an ‘A’ record for the LCSPool to have an IP Matching the LCS Server’s IP Address.

Flush the cache, and then you should be able to edit the block list data, and the clients should then be able to communicate properly.

~Christopher Kusek