NUC6i5SYH - dedicated to run Roon Core
Coax cable to Sagem 3890 router, which is hardwired to Roon Core Machine and to my Roon Endpoint (have only this one): Pro-Ject Stream Box S2 Ultra.
None
Since last update, Roon on my laptop (MacBook Pro) cannot find Roon Server. On the Iphone and Ipad there are no problems.
Do I have to open a port or so?
Hey @Christian_Frankel,
Thanks for writing in!
The first thing to examine would be the firewall on your troublesome Mac device:
Do you have any third-party security software installed on the Mac? If so, here is some additional information:
Please follow the steps in Adding Application Exception to McAfee Firewall to add Roon as an exception to the firewall.
Additionally, you can try changing the router’s listing to a Home network in McAfee: Mcafee Firewall settings for Roon 1.7 - #7 by Anthony_Lombardo
A third solution is to change the security level of Roon and RAATServer: SB3 won't connect to Roon Sever with McAFee turned on - #9 by Jeff_Barham
Lastly, I would also test out manually downloading and installing the latest update from our site directly:
Let me know how the above goes. Thanks! 
Thank you, Benjamin, for your advice. I’ll try it out, step by step over the weekend, and report back how it goes. All best, Christian
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