I moved to the CRS125125-24G-IN and used the example for router+switch found here: viewtopic.php?f=13&t=143620
I tried to match as closely as possible but the syntax is different from the CRS125. I ended up using Terminal Mode as could not translate the config file to the equivalent pages in Winbox.
I was able to at least get the DHCP Server to stop indicating invalid though (It helps when you remember to set the network for the server correctly).
I created just a single VLAN. Untagged on port 17 and tagged on the trunk port. I still can't get it to hand out an address to a device on port 17. The remaining ports on the basic 192.168.88.1 subnet are fine.
I have a feeling It's something very simple...
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