Hi JenniferLee1580,
From your description, I understand that you cannot logon to Skype for Business on your mobile device only in home Wi-Fi. I’d like to confirm have you tried to manual configure your account?
If no, please enter
https://webdir.online.lync.com/Autodiscover/autodiscoverservice.svc/Root as the internal and external discovery addresses by clicking
Server Settings on the sign-in page and then check whether there is any improvement.
If the issue persists, we need to collect some information below to further troubleshoot it:
1. Let us know the troubleshooting steps you have been tried.
2. Your device OS version such as iOS 9.2/Android 6.0.1 and Skype for Business app version such as 6.2.0.24.
3. Could you confirm whether any other users in your organization encounter the same issue in your home Wi-Fi?
If you are using the desktop client but not a mobile device, please provide the following information for troubleshooting:
1. The troubleshooting steps you have been tried.
2. Your OS version such as Windows 8 and Skype for Business client version such as Skype for Business 2016 (16.0.6701.1013).
We appreciate your details,
Larry
