My host and participant passwords do not work all of a sudden, how can I fix this?

#Point of Contact# * Name: Eddie Taylor * Email:eddieray@tammytaylornails.com * Phone number: 949.225.0241 * Timezone: PST * Preferred callback method, time timezone: PST * UID: 64970018 * RC Case#: 15653566 #Product line# : SW #Background#: Callers were trying to join a conference call but they're getting a prompt saying that their access codes were invalid. #Problem / Issue description# When either a host or a participant tries to join a conference call, they're getting a prompt saying that the access code is invalid. #Affected Users# Ext.108 #Troubleshooting steps so far# conference force restart via SCP-tested not working checked SW if the user is entering correct participant and hosts code performed test call but encounter same error. Steps to Reproduce: 1.)Caller with Caller ID (949) 461-13391 dialed the conference number (267) 930-4000 2.) Caller entered Participant Code(386177) 3.) Caller receive error message code is incorrect #Actual behavior# Getting a prompt saying that the access code is invalid even if the one used is the same with the one on the user extension/s. Expected Behavior: User should be able to access the conference call without any issue. #Workaround# : NA #Technical logs