Lync Server customers.And the reverse proxy configured on the FortiGate firewall.Microsoft Skype for Business enables users to communicate securely anywhere they have network connectivity. Microsoft Teams is replacing Skype for Business.Skype for Business raises this Mac tomaking it much more suitable for Business presentations like all-hands meetings or live webinars. Skype for Business lets you add up to 250 people to online meetings, provides enterprise-grade security, allows you to manage employee accounts, and is integrated into your Office apps. I am also being asked for my Lync Online CN login credentials in parallel.You can also use Skype to participate in one-to-one chats and calls with Microsoft Teams users. Please note - known as Lync if you are a Mac user.We have a small Skype for Business 2015 environment consisting ofIf you can sign in online but not on your email client (like Gmail or Mac. Microsoft Skype for Business is a communication and collaboration tool that lets you use your computer or mobile device to instant message, video-chat, have ad-hoc or scheduled online video meetings/webinars, share screen and content with other students and staff at UNE.At System.Net.HttpWebRequest.GetResponse()At Microsoft.Exchange.Tools.ExRca.Extensions.RcaHttpRequest.GetResponse()I believe that we've finally found the issue. NotBefore = 12:00:00 AM, NotAfter = 11:59:59 PMTesting HTTP authentication methods for URL. The certificate hasn't expired.The certificate is valid. Autodiscover Web Service URL can't be contacted due to failure of the following tests:Attempting to resolve the host name lyncdiscover.domain.com in DNS.Testing TCP port 443 on host lyncdiscover.domain.com to ensure it's listening and open.Testing the SSL certificate to make sure it's valid.The certificate passed all validation requirements.The Microsoft Connectivity Analyzer is attempting to obtain the SSL certificate from remote server lyncdiscover.domain.com on port 443.The Microsoft Connectivity Analyzer successfully obtained the remote SSL certificate.The certificate name was validated successfully.The host name that was found, lyncdiscover.domain.com, is a wildcard certificate match for common name *.domain.com.Testing the certificate date to confirm the certificate is valid.Date validation passed. We can also access the server internally using the Skype for Business Mac client but we can't access it externally from macOS.Trying to access via browser doesn't work (ERR_EMPTY_RESPONSE)The Microsoft Skype for Business Autodiscover Web Service test tool comes back with the following error:Testing connectivity to the Lync Autodiscover Web Service server for a secure connection on port 443 to obtain the root token.Connectivity to the Lync Autodiscover Web Service test failed.Attempting to test Autodiscover Web Service URL. Clients are available for You can add contacts from your organizations global address list (GAL), from a Federated network to Lync for Mac, or from the following networks: Windows.We are able to login with the Skype for Business Windows client externally and internally.
Skype Vs Lync Install A PublicIn through the reverse proxy and back out of the reverse proxy. That means that the outgoing packet from the front end must traverse the same route the incoming packet arrived on, i.e. Symmetric routing must be configured. SSL decryption and re-encryption – Ability to install a public trusted certificate to the reverse proxy virtual IP service for the required URLs for decryption of packets on the public side, read and interpret the packet HTTP header to determine the correctBack end service to send the request on to, and then re-encrypt the packet on the private side and send to the front end server.2.Caching is not supported.4. Any form of content caching on the reverse proxy must be disabled. If a web proxy server is in use, then all external urls for the Skype for Business deployment from all machines must bypass3. The use of web proxy servers is not supported as it can cause asymmetric routing.One of the Skype clients is on the latest beta.We tried different profiles and none of them worked.Our reverse proxy is configured to redirect port 443 to 4443 and port 80 to 8080We are using wildcard certificate installed on the reverse proxy CN=*.domain.comThe Skype for Business Autodiscover Web Service is successful: Testing remote connectivity for user to the Microsoft Lync server. Three of them have the latest Skype for Mac client installed 16.3.240. Using COOKIE based persistence means the deviceCan be identified regardless of network membership and will be trusted so authentication does not need to reoccur.After changing the the reverse proxy to cookie based persistence we managed to login from outside without any issues.We tried four different Mac computers. This is because the source address of the mobile device can change as it traverses 3G hotspots and Wifi networks. Use animation in powerpoint for macAdditional DetailsElapsed Time: 491 ms. The host name resolved successfully. Test Steps Attempting to resolve the host name sip1.domain.com in DNS. Additional DetailsElapsed Time: 4724 ms. Additional DetailsElapsed Time: 649 ms. The certificate passed all validation requirements. Testing the SSL certificate to make sure it's valid. Additional DetailsElapsed Time: 210 ms. The port was opened successfully. Certificate trust is being validated. Additional DetailsHost name sip1.domain.com was found in the Certificate Subject Common name.Elapsed Time: 0 ms. The certificate name was validated successfully. Validating the certificate name. Additional DetailsRemote Certificate Subject: CN=sip1.domain.com, OU=IT, O=domain, L=London, S=London, C=GB, Issuer: CN=GeoTrust SSL CA - G3, O=GeoTrust Inc., C=US.Elapsed Time: 585 ms. The Microsoft Connectivity Analyzer successfully obtained the remote SSL certificate. The highest quality chain ends in root certificate CN=GeoTrust Global CA, O=GeoTrust Inc., C=US.Elapsed Time: 16 ms. Additional DetailsA total of 1 chains were built. One or more certificate chains were constructed successfully. Test Steps The Microsoft Connectivity Analyzer is attempting to build certificate chains for certificate CN=sip1.domain.com, OU=IT, O=domain , L=London, S=London, C=GB. Additional DetailsA-V Edge Server Hostname: av2.domain.com, TCP Port: 443, UDP Port: 3478Elapsed Time: 2769 ms. The specified user successfully signed in to Microsoft Lync server remotely through the Lync Access Edge Server. Testing remote connectivity for user to the Microsoft Lync server. The host name resolved successfully. Test Steps Attempting to resolve the host name av2.domain.com in DNS. Additional DetailsElapsed Time: 891 ms. The Audio/Video Lync Edge server is accepting requests for TCP Media ports. This test determines if the Audio/Video Lync Edge server is properly accepting STUN/TURN requests for Media TCP ports in order for external voice and video calls to be enabled. The Audio/Video Lync Edge server name, the TCP port, and the UDP Port 3478 on which it listens for Media Port requests are obtained fromThe Microsoft Office Communications Server when the test user signs in. Additional DetailsRequirement than a reverse proxy requirement per-say. The port was opened successfully. Testing TCP port 443 on host av2.domain.com to ensure it's listening and open.
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