Flushing DNS, resetting winsock among others, nothing seems to help and the problem returns. I have tried everything from applying static DNS setting in Windows and my router. This has only started to happen since updating to Windows 10. After a minute or two the connection resumes. When this error occurs all browsers stop working and internet is labeled as limited. The problem seems to be it drops DNS since the error is DNS_PROBE_FINISHED_NO_INTERNET or another variant of that. I am having a problem with this wireless card since upgrading to Windows 10 64bit as well, this is on a Dell Inspiron 14z. Intel® Wi-Fi Products - Possible Interference by Other Wireless Devices May Impact 802.11n Performance Intel® Wi-Fi Products - Access Point (AP) Firmware Updates May Resolve Wireless Network Issues Wireless Networking - Frequently Asked Questions - Wi-Fi Intel® Wi-Fi Products - Resolving Wi-Fi Network Connection Issues Recommended Settings for 802.11n Connectivity In this link you can find Lenovo's contact number: Computer Manufacturer Support Web Sites In the meantime, you are welcome to check the connectivity solutions found in the links below. If for some reason it is not properly working, we recommend that you contact Lenovo* to see if they have updates that might resolve the issue.

The Intel® Centrino® Wireless-N 2230 is supported through Windows 10* inbox drivers.

Intel centrino wifi driver windows 10