Troubleshooting General troubleshooting tips Error: "'admin' password is not set" Error "certificate verify failed" returned from curl command HTTP 400 error "Invalid Operation" HTTP 400 error "Value is not configurable" HTTP 400 error "Reference failure" HTTP 401 error "Authorization Required" HTTP 401 error "Login failed: session limit reached" HTTP 403 error "Forbidden" on a write request HTTP 403 error "Forbidden" on a GET request HTTP 404 error when accessing the switch URL HTTP 404 error "Object not found" when using a write method HTTP 404 error "Page not found" when using a write method Logout fails