Hi FiloktimonRizopoulos-2153,
This is likely to be the WiFi adapter itself on the server that’s not functioning.
If you want to enable the Wi-Fi adapter, you may try the following steps. However, it does not enable or disable the network driver installed in your computer.
Go to Start, click All Programs and open Accessories.
Right click on Command Prompt in the Program list and then select Run as administrator. If you are prompted for an administrator password or for confirmation, type your password, or click OK, or else click Yes.
In the Command Prompt, type the following command, and then press ENTER:
netsh interface set interface name="Local Area Connection" enable
Note: Replace Local Area Connection with the name of your adapter, e.g. Wireless Network Connection.
This enables you Wi-Fi adapter.
Corollary: Replace "enable" with "disable" in the command in Step 3 in order to disable the Wi-Fi adapter. 
I hope this answers your question.
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