I posted this on another forum and there was only one response and not any solution. I have noticed this only since the latest update to the Note 3. Before that when I left range of my home wifi the phone would go to LTE and upon returning home, automatically reconnect to my home wifi. Now it goes to 4g when I leave, but does not reconnect when I return home. Wifi is actually off so I think it is turning off when I am away for wifi for an extended period. I do not remember for sure, but I think before, wifi did not actually turn off. I think it just went out of range and then started using it again when I returned home. I don't really recall the specifics except that before I never had to do anything to get it to start using our home wifi network. lt would just automatically reconnect when I got home. Now unless I remember to turn wifi on manually when I get home, I could be home all weekend and still be using data.
Below are my advanced wifi settings. Thanks for any suggestions.
Sort by: Alpha
Keep on during sleep: Always
Always allow scanning: Tried both Unchecked and checked
Auto network switch: Tried bothUnche Checked