Cannot Share from my computer, cannot backdoor into computer either

Question

I have a folder to share out various files on our network. At some point in the past few months it has randomly stopped working. If I try to follow the share link on my own computer I cannot access it. I also cannot backdoor into my computer through \<computername>\c$ anymore.

The diagnostic says the device will not accept connections through SMB. I have read 20+ articles about how to fix the issue, none of which have worked. 

Any idea would be greatly appreciated.

Answer 1

That was one of the first things I did. Just for some background, I am a Net Admin so all of the general easy stuff I have done, but I do appreciate the input.

Answer 2

Try run following command in command prompt as administrator:

ipconfig /release

ipconfig /renew

Run Windows Update and install all updates.

Also restart your PC.

Answer 3

We only have Windows 7 on our network and no one else has the issue. So it's not the firewall or any security settings from group policy. Windows logs don't show anything that is a warning or error.

Answer 4

Did you faced this issue in other version of Windows?

Have you checked the log files in your PC and server to see what is the issue?

Are you using any third party Firewall or IDS?