With our latest Roon release, images are being downloaded “on-the-fly” from our image servers, so if a network is unstable you may see behavior like the one in your screenshot.
Please be aware that we highly suggest staying away from ISP-provided routers, as we have often seen them be underpowered and unreliable (as mentioned in our Networking Best Practices Guide):
Poor quality or underpowered routers can play a major role when it comes to networking difficulties. 802.11n was superseded by 802.11ac five years ago, so at this point, 802.11n routers should be considered obsolete. Furthermore, the performance difference between early 802.11ac routers and current models can be substantial due to differences in CPU/RAM allotments. ISP-provided routers are often underpowered and poorly behaved. Finally, we strongly recommend against using Apple network devices such as the Apple Airport Extreme and Airport Express (note: it’s fine to use the Airport Express as an Airplay device). To ensure the best performance, we recommend against using these devices.
A few troubleshooting suggestions that you can try here: