On a rather new Samsung Ultrabook series 5 we had intermittent / sporadic connection problems on some wifi networks. The status for the network shifts forth and back between ok and “No internet access”. This doesn’t happen on all wifi networks. It seems the problem is the 802.11n mode, especially in a crowded wifi environment.
The solution (or workaround) is to disable the 802.11n mode in the wifi driver for the Intel(R) Centrino(R) Advanced-N 6235 chipset. This gives a lower bandwidth connection but on the other hand, a stable connection.
- Go to the Control panel
- Open Network connections (search for it if you have troble to find it)
- Right click on your wifi connection and select Properties
- Click Configure in the upper part of the box (my screenshot is danish, so it is the button labeled “Konfigurer…”)
- Click on the Advanced tab
- Find the 802.11n mode status configuration parameter and select to set it inactive (off)
- Click Save / OK in the bottom