Rudy - * Beware of scammers posting fake support numbers here. Your sign-in address that you're using when you try to sign in to skype for business online address via private message: toĬheck your account’s environment and DNS records.Meanwhile, we'd like to collect the following information to better understand your situation: Internal/External Discover address enter:.When you are in login page, enter your account, and then click Advanced Option.Try manually configure the Skype for Business client follow the steps below:.Make sure that your Mac clock is set to the correct time since Skype for Business uses a timestamp as part of the authentication process.Change a network to check if the issue persists.So, please try other suggestions to narrow down the issue: According to your description, there is no issue connecting from a PC which indicates the DNS records used for the Skype for Business configured correctly.
