1. kct1975's Avatar
    So the other day I was poking around in the Developer Options of my Note 5, and I noticed the option for forcing the Note 5 to keep Mobile Data and WiFi Data on at the same time. (please see the screenshot below)

    My question is...If I enable the option to have both WiFi and Mobile Data on together, will my Samsung Note 5 pull data from the mobile data while it is connected to the WiFi or will it simply keep both on and only use Mobile Data when the WiFi either becomes weak or disconnected.

    The reason I ask, is that, if I can safely have both WiFi and Mobile Data active at the same time, it would be a big help to some of my more finicky app (like the JET Mobile app I use for my part time job) from hanging and crashing.

    Any information or clarification you all could provide would be greatly appreciated.
    01-28-2019 07:55 AM
  2. methodman89's Avatar
    It does what each option says in its description. Try it out.
    01-28-2019 08:18 AM
  3. kct1975's Avatar
    Please allow me to restate my question...

    If I have WiFi Data and Mobile Data turned on at the same time...Will my Note 5 Smartphone pull data from the WiFi Data Connection or the Mobile Data Connection or will it pull data from both at the same time?

    For example, if I have both WiFi Data and Mobile Data turned on at the same time, and I send an email to a friend...will my Note 5 Smartphone use the WiFi Connection to send the email or will my Note 5 Smartphone use the Mobile Data Connection to send the email?

    What I am hoping is that if I have both WiFi Data and Mobile Data turned on, that the Note 5 will use the WiFi Connection until it becomes unstable and it will then seemlessly switch over to Mobile Data.

    But I personally have no way of knowing since I don't have enough technical knowledge to be able to accurately read signal data.

    If anyone knows the answer, it would be great.
    01-29-2019 08:00 AM
  4. methodman89's Avatar
    Option 1 and 3 say you'd be using Wi-Fi unless it needed to additionally use cell data.
    You can verify this by going into Settings, data usage.
    01-29-2019 01:08 PM
  5. Rukbat's Avatar
    When it's using WiFi, it's not going to be using mobile data, so that answers that question for you. But there's another slight annoyance (not really enough to be called a problem) -

    If you're on a website (or an app that accesses a website under the hood), you're identified by your IP connection, so when it switches to mobile data you might lose the connection (because your IP address is different for each connection) to the site until you log in again. It only takes a second, but it can throw you if you're not prepared for it.
    kct1975 likes this.
    01-29-2019 01:10 PM
  6. kct1975's Avatar
    When it's using WiFi, it's not going to be using mobile data, so that answers that question for you. But there's another slight annoyance (not really enough to be called a problem) -

    If you're on a website (or an app that accesses a website under the hood), you're identified by your IP connection, so when it switches to mobile data you might lose the connection (because your IP address is different for each connection) to the site until you log in again. It only takes a second, but it can throw you if you're not prepared for it.
    Thank you for answering my questions!

    So what I think that I am going to do is turn on the WiF & Mobile Data option and see how it goes for a while, and if it goes well, I will leave it on and if not I will shut it off.

    I might also experiment with the Agressive Handover option just to see how it works with my usage.

    I'll try to remember to report back to you all.

    Thanks again for the advice.
    01-29-2019 02:57 PM

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