| Security | 6272 | Info | Network Policy Server granted access to a user |
| Security | 6273 | High | Network Policy Server denied access to a user |
| Security | 6274 | Medium | Network Policy Server discarded request |
| Security | 6275 | Medium | NPS request failed due to missing attributes |
| Security | 6276 | Info | Quarantine session started |
| Security | 6277 | Info | Quarantine session lifted |
| Security | 6278 | Medium | Network Policy Server discarded accounting request |
| Security | 6279 | High | NPS request timed out |
| Security | 6270 | High | RADIUS client authentication failed |
| Security | 6271 | Info | Network Policy Server started successfully |
| Security | 6278 | Medium | Accounting data dropped |
| Security | 4625 | High | Failed logon attempt via RADIUS user |
| Security | 6272 | Info | Network access granted |
| Security | 6273 | High | Network access denied |
| NPS | 4400 | Info | Network policy loaded successfully |
| NPS | 4401 | High | Policy load failed |
| NPS | 4404 | High | Authentication failed |
| NPS | 4406 | Medium | Server communication failure |
| System | 7036 | Info | NPS service entered running/stopped state |
| System | 7031 | High | NPS service terminated unexpectedly |
| NPS/Admin | 4400 | Info | NPS started |
| NPS/Admin | 4401 | Warning | NPS stopped |
| NPS/Admin | 4402 | High | NPS authentication failed due to timeout |
| NPS/Admin | 4404 | Medium | RADIUS accounting error |
| NPS/Admin | 4410 | High | Policy store not accessible |
| NPS/Admin | 4420 | Critical | Unexpected internal error |
| NPS/Admin | 4430 | Medium | Authentication latency threshold exceeded |
| Security | 4100 | High | RADIUS client added |
| Security | 4101 | High | RADIUS client removed |
| Security | 4102 | High | Network policy modified |
| Security | 4103 | High | Connection request policy changed |
| Security | 4104 | Medium | NPS logging configuration changed |
| Security | 4719 | Critical | System audit policy changed |
| Security | 4732 | High | User added to local group (Network Configuration Operators) |
| Security | 6272 | Medium | NPS granted access to user |
| Security | 6273 | High | NPS denied access to user |
| System | 4401 | High | Policy load failed |
| System | 4402 | Critical | Network Policy Server database unavailable |
| System | 4404 | High | Authentication method failure |
| System | 4407 | Medium | RADIUS accounting record lost |