[QuestionForTAC]

For version PE, AEv2.3.J

Possible reasons:
1. Problems with your Internet connection.

Error message:
(System error info), please check the Network connection.
Solution:

Make sure you have access to the Internet and the NetBrain website (http://www.netbraintech.com/register...nt-edition.php for AE, https://online.netbraintech.com/licsvc/order/DownloadProduct.aspx?nbversion=4&entryway=1 for PE ) via Microsoft Internet Explorer (IE). If not, please check IE security settings and Windows firewall settings, or check with your system administrator.

[QuestionForTAC]

Possible reasons:
2. There is username/password authentication in the proxy.

Error message:
Proxy Authentication Required, please check the Network connection.
Solution:
l Disable the username/password authentication.
l Use another PC which can access the Internet directly.

[QuestionForTAC]

Possible reasons:
3. There isn’t a physical NIC installed on your PC.

Error message:
“Invalid Parameter”
“Failed to get network card address”
Solution:
l Check if the physical NIC is disabled. If yes, enable it.
l Use another PC with a physical network adapter installed.

[timxpro]

Originally Posted by QuestionForTAC

Possible reasons:
3. There isn’t a physical NIC installed on your PC.

Error message:
“Invalid Parameter”
“Failed to get network card address”
Solution:
l Check if the physical NIC is disabled. If yes, enable it.
l Use another PC with a physical network adapter installed.

If u are using a laptop, most check in the BIOS for Power Saver on LAN and disable that.If is enabled, your NIC will only show up when connected and even when you connect the cable the error of NetBrain is still there.

This solved my problem !