Solution computer can not access the presentation

1, even without Internet access should first think of is that some system settings are not a problem, then you need to connect to a network system be set accordingly.
Right-click the network icon to open the Network Sharing Center to view the network connection is currently in what kind of circumstances.
2, the first is a schematic diagram of the current network connection to see a problem in that position at the center of a network share.
Generally yellow exclamation mark or a red cross will appear in places connected with the problem.
3. Click the yellow exclamation mark or a red cross as the system will automatically detect the problem, wait for a while the results will come out, whether the system will prompt you to solve the problem.
4, but also prompted beyond repair, but in fact, the problem has been resolved, connect again.
Method two:
1, auto repair later if that does not work, that is, the network connection settings manually in some settings.
Likewise Open Network Sharing Center, on the left there is the option of a management adapter, click enter.
2, which can be seen in all the computer network connection adapter opened state. Right-click, first select whether to see the normal diagnostic procedures to repair.
Note selected diagnosis adapter is required to use, as is the local cable connection, a wireless network is wireless.
3, after the diagnosis needs to be disabled and then restart the operation.
Method three:
1, and now the network are currently automatically obtain, if not accidentally set it appear as error fixed easily, causing the network not connected. So the network can not connect on the pressure first check the network IP settings.
Right-click the computer - click the network name.
2, select Properties --TCP / IP ...... 4, double-click to open the following DNS and IP are set to automatically obtain it.