![Skype for Business, Lync and Exchange Web Services (EWS) and different DNS Domains- Exchange crawling e.g. for presence Skype for Business, Lync and Exchange Web Services (EWS) and different DNS Domains- Exchange crawling e.g. for presence](http://1.bp.blogspot.com/-jAci1136FQs/UQjTY0GfX5I/AAAAAAAAAm8/ZzU9glN430Q/w1200-h630-p-k-no-nu/Lync-Exchange-EWS-Not-Deployed.png)
Skype for Business, Lync and Exchange Web Services (EWS) and different DNS Domains- Exchange crawling e.g. for presence
![Fixed] Cannot sign in to Skype for business because your computer clock is not set correctly - EnjoySharePoint Fixed] Cannot sign in to Skype for business because your computer clock is not set correctly - EnjoySharePoint](https://www.enjoysharepoint.com/wp-content/uploads/2019/10/Cannot-sign-in-to-Skype-for-business-because-your-computer-clock-is-not-set-correctly.png)
Fixed] Cannot sign in to Skype for business because your computer clock is not set correctly - EnjoySharePoint
![FAQ: I got error annoying message after login Skype for Business mobile app saying that "We can't connect to the server." What can I do? | OCIO FAQ: I got error annoying message after login Skype for Business mobile app saying that "We can't connect to the server." What can I do? | OCIO](https://www.eduhk.hk/ocio/webdoc/images/faq/image/skypeb_exchg_ios.png)
FAQ: I got error annoying message after login Skype for Business mobile app saying that "We can't connect to the server." What can I do? | OCIO
![FAQ: I got error annoying message after login Skype for Business mobile app saying that "We can't connect to the server." What can I do? | OCIO FAQ: I got error annoying message after login Skype for Business mobile app saying that "We can't connect to the server." What can I do? | OCIO](https://www.eduhk.hk/ocio/webdoc/images/faq/image/skypeb_exchg_android.png)
FAQ: I got error annoying message after login Skype for Business mobile app saying that "We can't connect to the server." What can I do? | OCIO
![O365 Skype for Business - Lync cannot verify that the server is trusted for your sign-in address - ITExperience.NET O365 Skype for Business - Lync cannot verify that the server is trusted for your sign-in address - ITExperience.NET](https://www.itexperience.net/wp-content/uploads/2018/04/lync-is-attempting-to-connect.png)
O365 Skype for Business - Lync cannot verify that the server is trusted for your sign-in address - ITExperience.NET
![Skype For Business Troubleshooting: Cannot connect to server for presenting right now - TechNet Articles - United States (English) - TechNet Wiki Skype For Business Troubleshooting: Cannot connect to server for presenting right now - TechNet Articles - United States (English) - TechNet Wiki](http://social.technet.microsoft.com/wiki/cfs-file.ashx/__key/communityserver-wikis-components-files/00-00-00-00-05/844641.1.jpg)