This message was posted on behalf of Intel Corporation
We would like to mention that this forum is supported in English so we will reply using this language. Using our online translator we understand you would like to configure 802.11n for the Intel® Dual Band Wireless-AC 3165.
In this adapter, this is done with the Advanced option "HT Mode". You would normally use "VHT mode", since it supports 802.11ac compatibility and also allows connecting to Wireless-N networks. If you wish to lock 802.11n, then you can change this to "HT Mode".
For more information please check the following document: Advanced Intel® Wireless Adapter Settings.
Let us know if this helps, or in case you have any additional questions.