A couple of days back I purchased the Dell Inspiron 15 7000 series( Dell Inspiron 7548) laptop with the Intel (R) Dual Band Wireless AC-3160 however I have noticed that the connection to the Wi-Fi in my home when using wireless is extremely slow and the signal bar fluctuates from 1 bar to 5 and often just disconnects. The wireless adapter works fine when I am right next to the router however in my bedroom it is extremely slow even when there are a few bars of connection and I cannot connect to the internet through ethernet port as there is no port for it! . I feel that this is not a problem with the router or my Wi-Fi in my home because the laptop i used prior to buying this one worked perfectly and other laptops in the house also get full bars of connection and high speeds in my room however my laptop does not. I have updated drivers from Intel main website to the most recently released driver, so I am beginning to think that the wireless card may be faulty. Any help would be immensely appreciated so thank you in advance.
Please know that any driver update to OEM (Original Equipment Manufacturer) adapters must be done through the OEM's support page, in this case Dell, as the adapters in this category, even though they are Intel(R) products they suffer customizations and adaptations in order to fit the system. Our drivers in our support page are generic and they may not fit the requirements of your system. On our best effort to assist you, here are our recommendations that might help you resolve this issue.
http://www.intel.com/support/wireless/wlan/sb/CS-031509.htm Intel® Wi-Fi Products — Possible Interference by Other Wireless Devices May Impact 802.11n Performance
http://www.intel.com/support/wireless/wlan/sb/CS-034658.htm Intel® Wi-Fi Products - Quick Checks That Might Improve or Fix Connection Issues
http://www.intel.com/support/wireless/wlan/sb/CS-025332.htm Intel® Wi-Fi Products — Resolving Wi-Fi Network Connection Issues
http://www.intel.com/support/wireless/wlan/sb/CS-025393.htm Intel® Wi-Fi Products — What Are the Advanced Wi-Fi Adapter Settings?
1 - Disable the Power Saving Functions:
2 - Set the advanced settings of the Adapter:
On a side note. Finding the optimized wireless connection settings between the wireless adapter and the router also helps for a steady connection.
Choosing and setting the band and the channel for the wireless connection for your router and adapter is also of great help. If you are in a place that has lots of physical barriers such as walls and the like, we recommend that you use 2.4GHz for better penetration capabilities which improves the connection signal if there are other solid objects in the way between where you want to have the computer and the router.
3 - You can also change the the wireless adapter advanced settings in order to match the settings of your router.
We do hope this piece of information helped you to resolve this issue.
I made the changes as specified, but I noticed that turning off the Bluetooth helped a bit in the speed issue and I couldn't see any other major changes even after following the steps. Is it because of lower end wireless card used in the system. As I know 3160 is 1x1 stream and actually it operates well when Bluetooth is turned off?
I have posted the link here for your reference https://www-ssl.intel.com/content/www/us/en/wireless-products/wireless-product-selection-guide.html Intel® Wireless Products. The Wireless card I have is Intel Dual Band Wireless 3160 AC. So can I know if there is any other solution for this issue?