The project manager should first perform an impact analysis with SMEs to assess the potential effects of the separate project on the network upgrade. This will help the project manager to determine the magnitude and probability of the risks, as well as the possible responses and contingency plans. The impact analysis is part of the Monitor Risks process, which involves tracking the identified risks, monitoring residual risks, identifying new risks, and evaluating risk process effectiveness1. Informing the government representative, implementing a change request, and updating the risk register are all possible actions that may follow the impact analysis, but they are not the first thing to do. References: 1 PMBOK Guide, 6th edition, page 452.