Wifi issues with Dell Latitude

[kcalderw]

I have to identical Dell Latitude E6440s one for our Superintendent and the other for our Principal. The Super's laptop wifi has been rock solid with no issues. The principal's however is dropping connection when undocked constantly. He'll be in a room doing an observation and the wifi will drop out completely. The both had the same driver installed but I did upgrade his recently to see if anything changed. He is now running v15.13.0.2 for the Intel Ultimate 6300. One thing I do keep noticing is that his security type keeps switching back to AES. I had to switch our wifi over to TKIP due to issues with our HP Chromebooks. I keep changing the setting on the wifi preferences to TKIP, but they keep switching back.

 

Any ideas as to what could possibly be going on here?

[IT_Ninja]

Could be related to the WiFi card. Have you tried swapping them and monitoring.

 

I had a similar issue where the card was faulty and had a very bad connection and dropouts etc.

 

I'd recommend a quick swap and check at least to eliminate the hardware side of things.

[sted]

its worth checking the power management settings of the wifi card sometimes these can cause issues

[colinged]

Is it using the windows management for the wifi or a dell utility? I used to get lots of random issues with wifi due to the dell utility. If it is using it I would recommend removing it and testing with purely the windows side.

[kcalderw]

I've traced the issue back to the wifi profile not saving the correct encryption. I keep changing it to TKIP and for some reason it keeps reverting back to AES. I have even deleted the SSID information and gone back to re-add it.