ethminer returns no result on phoning home to find world ranking???

C:\Program Files\cpp-ethereum>ethminer -G -M --opencl-platform 1
Found suitable OpenCL device [GeForce GTX 950M] with 4294967296 bytes of GPU memory
Benchmarking on platform: { "platform": "NVIDIA CUDA", "device": "GeForce GTX 950M", "version": "OpenCL 1.2 CUDA" }
Preparing DAG...
Warming up...
i 23:24:00.950|gpuminer0 workLoop 0 #00000000 #00000000
i 23:24:00.957|gpuminer0 Initialising miner...
Using platform: NVIDIA CUDA
Using device: GeForce GTX 950M(OpenCL 1.2 CUDA)
Printing program log


Creating one big buffer for the DAG
Loading single big chunk kernels
Mapping one big chunk.
Trial 1... Creating buffer for header.
Creating mining buffer 0
Creating mining buffer 1
0
Trial 2... 0
Trial 3... 1484493
Trial 4... 1920468
Trial 5... 1920468
min/mean/max: 0/1065085/1920468 H/s
inner mean: 1134987 H/s
Phoning home to find world ranking...

C:\Program Files\cpp-ethereum>

Can anybody help? it doesn't return a result on phoning home, why is this?