This is highly likely and the router should be replaced by your ISP if faulty. However, you haven’t explained how your setup hangs together, i.e. what devices and services you use.
Therefore, it would be really helpful if you could describe your setup in more detail. Please see the following post.
Your post should include:
- Details on your Core machine (OS, Hardware specs, Roon build)
- Details on your Remote(s) (OS, Hardware specs, Roon build)
- Networking details (especially what hardware you’re using, how everything is connected, and anything notable about how it’s all configured)
- Audio devices in use
- Library details (where your music is stored, whether you’re using a streaming service, how many tracks are in your library)
Including these details in your first post helps the community and/ or Roon staff resolve your issues faster.