Got it all working. Basically had to turn off the hubs, reset my router (it really did a number), reassign routes, confirm it all worked ok, then set up the BT discs - with the upgrade.
Everything now works... for now 🙂
Changes I'm observing:
* Network topology is identical. Speed when connected to router = 385mbit down, previous speed from disc = 360mbit. Current speed with new firmware = 238mbit. Can never guess what the variability is around - but speed and signal is good so I'll try not to stress out too much just yet.
* Slight improvements in ping time, but still considerable. Connected to router wifi = 2-3ms tops. Connected through bt disc (Secondary one) = 5-11ms.
* gateway + dns of all nodes now showing ip of the main router
* Seeing a whole bunch of random unnamed and unidentifiable devices in my device list. These show as wired (i only have 2 known wired devices, both show in the list). They have either no IP or an IP in the 192.168.9.x range when rest of network is on 192.168.1.x. So, that's odd.
This is after about 3 hours stabilisation. I'll probably start getting a bit more bothered about the pings + speed drop once the basics are working reliably and consistently.
