Thank you for your post.
The issue that you describe may be caused by corruption, Anti-virus or a combination of the two.
First to clean out any possible corruption:
Make sure your antivirus program does not block the connection, check both the Windows* firewall again and if your security software has a firewall check that too. Make sure that the Firewalls and antivirus allow the "Wireless PAN DHCP Server." In private and public networks.
Hello, thanks for your help.
I have followed all the steps, but I'm still getting the same error. Sometimes the error message doesn't appear, but the result is the same: a yellow triangle appears in the WiFi icon on the Windows notification area, and the "ipconfig /all" command shows that the DHCP Server is disabled. I have also tried to disable both firewall and anti-virus protection (Avast shields) and the error is still there, so that the problem should not be a conflict between them.
Some days ago, I noticed my computer was affected by a malware called "Zero Access Rootkit". The malware was already removed, but it made me impossible to activate the Windows Firewall. Finally I solved that problem, but I'm wondering if that malware could also affect other components which are needed for the Intel MyWifi technology. For this reason, I think re-installing Windows would solve the problem, but I would only do that if there is no other option because I work with this laptop daily.
I have the same problem. My machine is a Dell V131 running W7 Pro. Sharing internet connection was running smooth until some Windows updates started to install. My solution was to restore the laptop to a previous date (before the update) and sharing returns as usual. However, recently, Restore fails to restore the system earlier date and I am stuck with no sharing even after applying the steps above. The system is protected with Trend Micro Titanium Internet Security antivirus.
Any suggestions?
Same issue with Dell XPS L702X (Centrino Wireless N-1030 inside)
Contacted both Dell support and Intel support hotline:
- Dell support told me to do system restore and then reinstall Windows *sigh*
- Intel support hotline redirected me to Dell support.
Issue pops up with both the original Dell software as well as with the latest "Dashboard" 15.3.0.
Who can help 
?
Ok well I got it working now, but had to reinstall like 5 times. I'm still not sure about the cause.
