new setup across vlans/subnets

[Neo]

Hi,

I’m not sure if I should be asking here or in the bubbleupnp or peplink forums. There’s a bit of a story to explain where I am and apologies if this is the wrong place.

I have a number of vlans and different subnets and grouped my devices.
my NAS is in one VLAN. The Gateway 192.168.1.9/29
my pc is in another VLAN. The Gateway 192.168.1.33/27

I have intervlan routing enabled. I can see the nas and login just fine using a browser and the lan ip adddress of the nas (I have firewall rules on the router to inhibit vlans talking and these are disabled while trying to get this problem solved)

The problem I have is trying to use minimserver and bubbleupnp server (both on the NAS) bubbleupnp client on a tablet.
minimserver says its running. Bubbleupnp server sees minimserver as an active media server.
I can get the tablet on another vlan for wifi devices to connect. bubbleupnp client can log in to bubbleupnp server but I cannot see any media to play even though its there in a folder indexed by minimserver.
I've spent a long time trying to get it to work and then thought to try minimwatch - perhaps the problem of no media listed was there.

I cannot get minimwatch to connect to minimserver.
Java is allowed through the firewall (I've tried windows firewall disabled too). The synology firewall is turned off while i test
For the ohnet.subnet option ..... If I use the subnet that the pc is in, minimwatch cannot see the server (even though I’m logged in to the nas with that pc)
If I use the subnet that the nas is in, minimwatch says the subnet is not found

I just don’t understand why it cannot see the server when I’m already connected across the vlans and logged in to the nas. My lan side routing must work ok

Then I read about problems with upnp across different networks/subnets and I’m guessing that this might be a problem I will encounter a bit further down the road.

It feels a bit like I might have a few issues to solve and I’m not sure if any of it can be fixed by adjusting settings on the router or it's an improper setup of minimserver or bubbleupnp

Is anyone aware of a useful setting that helps with upnp streaming when a nas is in one network and the player/renderer control points are in other networks?