I have a slightly weird situation; on one PC that is domain connected, opening SSMS and connecting and working in the server is fast and responsive. Through this PC, there is ICS (internet connection sharing) enabled to expand this connection to other PC's in the local network (this ICS is required, I can't get away from that unfortunately)...
For all other PC's on the local network, they don't have WMI capability to the server (they're not domain connected) and they have the little blue question mark on the server icon once connected.
However, connecting to the server and working with the server is extremely slow; it can take up to a few minutes for objects to load or queries to run, but performing the same actions on the domain connected PC is fine.
I can only deduce that the slowness has something to do with ICS (however this should just be passing traffic) but given WMI isn't working, I'm wondering if this could be part of the issue.
The SMSS version I've tested is both 18.6 and 18.4
Has anyone encountred any issues like this before - but more importantly, does anyone know how to resolve?