Sign in with Microsoft
Sign in or create an account.
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.


Consider the following scenario:

  • You access the Internet through a proxy server that requires authentication.

  • The proxy server is configured for a language that uses extended ASCII characters.

  • You try to join a Skype meeting that's sent by a non-federated partner in Microsoft Skype for Business 2016.

In this situation, you can't join the Skype meeting successfully.


This issue occurs because the response from the proxy server contains ASCII characters greater than 127.


To fix this issue, install the March 6, 2018, update (KB4011725) for Skype for Business 2016.

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Was this information helpful?

What affected your experience?
By pressing submit, your feedback will be used to improve Microsoft products and services. Your IT admin will be able to collect this data. Privacy Statement.

Thank you for your feedback!