I'm experiencing the same error. Also, networking callback blocks never get called. The following are some errors that I get on the console: bash 2021-02-26 10:44:03.254223-0300 someapp[60402:1358928] Connection 6: received failure notification 2021-02-26 10:44:03.254373-0300 someapp[60402:1358928] Connection 6: failed to connect 3:-9816, reason -1 2021-02-26 10:44:03.254469-0300 someapp[60402:1358928] Connection 6: encountered error(3:-9816) bash 2021-02-26 10:44:03.285567-0300 Preguntados[60402:1358635] Task 61134D07-7245-4043-85FF-E6003D3E08C5.1 finished with error [-1001] { Error Domain=NSURLErrorDomain Code=-1001 "The request timed out." UserInfo={ _kCFStreamErrorCodeKey=-2102, NSUnderlyingError=0x600001172b20 { Error Domain=kCFErrorDomainCFNetwork Code=-1001 "(null)" UserInfo={ _kCFStreamErrorCodeKey=-2102, _kCFStreamErrorDomainKey=4 } }, _NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask 61134D07-7245-4043-85FF-E6003D3E08C5.1, _NSURLErrorRelatedURLSessionTaskErrorKey=("LocalDataTask 61134D07-7245-4043-85FF-E6003D3E08C5.1"), NSLocalizedDescription=The request timed out., NSErrorFailingURLStringKey=https://somedomain, NSErrorFailingURLKey=https://somedomain, _kCFStreamErrorDomainKey=4 } }