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TS 2012 connection broker not showing client connections

Posted on 2015-02-12
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Last Modified: 2015-02-17
We have a client that has a terminal server farm on a 2012 platform.  All of a sudden a few days ago they can no longer see client connections to the farm from the connection broker.  The farm is working but for some reason we cannot see the active client connections on the server manager dashboard under collections any longer.  Not really sure where to start troubleshooting this.  The servers in farm are all showing online under the collections.   Any help would be greatly appreciated!.
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Question by:DaveKall42
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by:Cliff Galiher
ID: 40607151
If you configured a "farm" like you would've in the 2008 series of products, you'll see this behavior. Specifically in regards to using load balanced or round robin DNS. 2012 moved the initial connection process from the participating RDSH servers to the RDCB itself. If clients are connecting to RDSH servers directly, they will no longer get the initial redirect to the RDCB so the connection doesn't get logged.
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by:DaveKall42
ID: 40607209
It was working fine and then all of a sudden after a reboot of the farm it stopped.  The clients are logging in the same way they alway have with the DNS farm name.
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Cliff Galiher earned 500 total points
ID: 40607232
I'd suspect DNS. I see 2008 sysadmins doing things in DNS that don't make much sense, but don't come to light until reboots occur and DNS clients do dynamic registration. It isn't uncommon. In 2012, farms in that sense are effectively dead. It is now connection brokers (which can be made highly available) and collections. But a collection is *not* a farm. The RDCB still arbitrates those connections, unlike how old farms worked.
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by:DaveKall42
ID: 40615432
Well I guess the question is, the collections are not showing any connections even though users are connected to the servers?  Where would I be looking to fix that issue?  The servers in the collection are showing online.
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