Be patient. I had such problem. Check your router settings, connection of the network cable also – it may possibly be conducted incorrectly. Here is a guide http 192.168.l.l . Follow the instructions below.
List of the router models and their IP addresses:
Airties: 192.168.2.1.
Certain models of Huawei: 192.168.3.1.
Starlan: 10.10.10.1, also 10.10.10.10.
Upvel и TrendNet: 192.168.10.1.
TTNet: 192.168.2.1.