Windows 2008 R2 Remote Desktop Services RD Connection Broker issue

I have an issue where when I remove an RDS Host server as a Farm member the broker still directs connections to it.

Goal: Remove RDS Host from farm so no new connections can be made, for maintenance. After maintenance I will join it back to the farm.

BROKER: Windows 2008R2 RD Connection Broker
RD1: Windows 2008R2 RDS Host Server
RD2: Windows 2008R2 RDS Host Server

Here is how I am removing it and what I have tried.
1. On RD1 I have configured for "No farm membership or redirection"
2. On BROKER I have removed RD1 from the "Session Broker Computers" local group.

Still my connections are redirected to RD1. Oddly I also see a user with a session on both servers - even though I have enabled one session per user.

I use round robin dns. I shouldn't have to remove RD1 from DNS right?
CanOfWormsAsked:
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Cliff GaliherCommented:
Yes, in 2008 (and R2), you must remove the RDserver from the round robin rotation. The connection broker ensures session affinity, but it wont stop initial connections that round robin allows.

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CanOfWormsAuthor Commented:
Ok, thanks for the answer. Bah - horrible - I have to wait for DNS cache to expire.
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Windows Server 2008

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