Windows 10 Network slow with New computer

📎 AI Summary:
The original poster reports experiencing random ping spikes on their internet after a new computer connected with the address 225.0.0.1, which is outside typical home network ranges. They suspect interaction with the new device but do not want to access it directly. The respondent clarifies that 225.x.x.x addresses are reserved for multicast and not used in standard LAN setups, implying the issue likely isn't due to local network interaction.