Error message "media loading slowly, could be a network error"

[Stephen_Reynolds]

Roon Core Machine

Asus laptop from circa 2010 running W10 and nothing else. Intel quad core Ivybridge and 8Gb RAM

Networking Gear & Setup Details

Amazon eero WiFi mesh, isp is 300mbs fibre to the door. No VPN set up in routers / LAN. Core (on Asus laptop) is connected wirelessly to a NAD CS1 streamer.

Connected Audio Devices

NAD CS1 streamer and a sonos gen 1 connect both over WiFi.

Number of Tracks in Library

12000 tracks plus cloud streaming service qobuz and Spotify.

Description of Issue

For around a year or so, core has been on a fairly new, mid spec desktop pc streaming into a desktop headphone setup all hardwired.
Recently added a sonos connect to my main hifi system, and worked fine for around 3 months or so. Always with DSP for room correction, and Roon doing the resampling of hi res tracks to 16/44 for the Sonos device. Local library is on a Synology NAS, mix of CDA and some hi res. Recently moved my core onto the Asus laptop, out of convenience as my desktop is not always on, and in another room. Two days ago I installed a NAD CS1 streamer also connected via the LAN over WiFi. I get the error message and track skipping intermittently, only on hi res tracks. I don’t get it when streaming direct from the qobuz app using chromecast. I don’t get the problem streaming direct from Spotify app either.
I’ve tried turning off all DSP, that worked for a couple of tracks, but then the problem returned.
The only thing I could try is moving the core back onto it’s original device location.
I can’t hardwire the laptop or streamer into my WiFi network without buying another router, and moving my furniture around (so not practical).
The WiFi network is stable. All connected devices are either adjacent to or in same room as a router (I have 3 x eero routers in separate rooms). The WiFi speeds measured in each device range between 40mbps for the Asus laptop to 150mbps for desktop and over 200 for mobile controllers. The LAN is able to support 3 4k TVs streaming simultaneously (though never when streaming music, only 1 at most would be sharing the network). There are few other devices connected, so traffic is low.

[Stephen_Reynolds]

Anyone?

I found a setting in Library that specifies or rather limits the amount of processor allocation: Throttled, 1 core, 2 cores etc etc. It was set to throttled, it’s not set to 4 cores fast. It appears to have fixed the problem, so far.
is anyone able to confirm this is a possible cause (and solution), and / or are there other things to consider?

[Placebophile (Jeff)]

I think the setting you’re referring to is just for when Roon is scanning the library and doing analysis?

In device settings do you have the option to increase the buffer size?
That could help.

There are many variables that affect why Roon performance on wifi can be less than ideal especially when compared to things that presumably use more bandwidth such as 4K video.
For example, Roon uses a smaller buffer in order to facilitate multi-zone use.
And also there’s a lot more 2 way traffic happening and by design wifi only works in one direction at a time (essentially).

Official support will get here eventually.
They’ve been quite busy lately.

[Stephen_Reynolds]

Thanks Jeff, it is the library scanning, but it seems to have cured the problem. I can’t see anywhere a buffer size setting, it would be one of the first things I’d have tried.