Tag Archives: DNS

How DNS can affect your Skype for Business federation

Experience another DNS-as-root-cause issue in a Skype for Business federation model. Where this wasn’t as obvious as it looks afterwards, I’d like to share the details of this one. Intermittent results at federation calls were bugging us at first. Some calls were successfully, but some failed with setting up audio. One common ground were that

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Federation stops working after enabling a HostingProvider with “EnabledSharedAddressSpace” turned on

This could be, for example, Lync- or Exchange OnlineĀ / Office365. Recently, federation broke when implementing “voicemail in the cloud” with Microsoft’s Exchange Online. Microsoft Exchange was configured in Hybrid mode, all successful and operational – users could be moved back and forth and use either Exchange on-premise or Exchange online. Unified Messaging was already enabled

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Polycom CX700 – certificate issue

At many clients I used and installed the Polycom CX700 (aka “Tanjay”) device succesfully. However, during my latest project, it was not that easy. As with every implementation, DNS and WINS were updated for the Device Updater, and DHCP reservations were created for the Polycom device. After installing the update succesfully, I tried to log

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