After latest update, GS9 keeps defaulting to Cellular Preferred over Wi-Fi calling

im legacy and this is not solved its a burden on the prepaid thats what they want

This just started happening in recent months. I have a Galaxy Note 10+5G. I have been a T-Mobile customer for many years, but I will switch carriers if they don't fix this "feature" or whatever you want to call it. Why can't I just set my phone on wifi preferred and have it stay that way? Unreal.

drinktigermilk wrote:

I have very poor (but existent) cellular coverage in my home.  I had no problems with setting Wi-Fi preferred for all of my calls/texting prior to the latest (large) update.  Now, I can select Wi-Fi preferred under Wi-Fi calling, however it never seems to save that setting.  As I am typing this, I have two outgoing messages that aren't sending (spinning circle) because the phone can't decide whether it wants to use Cellular or Wi-Fi.  I want it to use Wi-Fi because I know my Cellular coverage is horrible at my location.  I called into customer service today (somehow without a dropped call) and they made some adjustments on their end, however it fixed nothing. 

YOU WOULD THINK SOMEBODY AT T-MOBILE WOULD READ THIS THREAD AND RESPOND!!??

Even after selecting Wi-Fi preferred, I will go back to check a few minutes later and the phone has already switched itself back to Cellular preferred.  This is very frustrating.  What can I do to ensure that Wi-Fi preferred will be the default setting?

 

 

Gracias

This now July 4, 2023 and I am experiencing the same BS everybody here has been complaining about.  It is a problem that has been going on for years apparently but never resolved as it is still happening today.  The information I have gathered so far is that the E911 service is linked directly to Wi-Fi calling but is a function of the United States, therefore when out of the country the E911 doesn't work, therefore WiFi calling doesn't work either. I suspect that this was part of the update. I recently received a statement from T-Mobile that was nearly double and when I checked, I noticed that even my WhatsApp calls were charged to my account. The rep wanted to sell me a more expensive international plan because he said I might not have a strong enough WiFi signal but I had no issues with the signal.  I decided to switch to WiFi calling and my bill went back to normal…then the update took away my WiFi..LOL  Good luck to the rest of you.

I am also a Galaxy S9 user and this may just be a bug that Samsung introduced in their update to One UI. Which is the one I think you are referring to. I have been able to fix the issue by putting the phone into airplane mode and then connecting to wifi so it has no options. Sorry if that's not a permanent fix but when it does occur it what I do.

under advance wifi, (3 little dots to the upper right) when you are on the wifi list of available wifi’s, on your phone. make sure wifi is priority over mobile calls and data calls. (only if wifi is gone, it goes to mobile) make sure anything “aggressive” is turned off, such us if “weak signal from wifi is low” it would switch to mobile to fast. turn off wifi scanning.

just anything that favors wifi calling over mobile, first.

if you see under advance wifi, switch to mobile data and its off, turn it on, then hit the little 3 dots.keep aggressive mode off, like i said. but under excluded wifi make sure your personal wifi is selected. so that it wont connect to mobile, when you still want the wifi calling feature on.

oh, well in that case, reset the phone to new, wont erase your external micro sd card, if you have one.

or your personal pictures.

I do suggest you do a master reset, erase it all. not all updates will make a phone work snappy, just by updating it. some updates might not work as good as the old settings, or fix or w/e they did.

gl

I have 2 S20+ phones and only mine is doing this optimize of wifi calling. I'm also having an issue where the wifi password keeps saying incorrect. I try typing it in again and it says same thing. Only fix so far has been to restart the phone. Started after the first update in September, I hoped the new update with September security update would fix it but it hasn't.

fireguy_6364 wrote:

they dont post much device issue info wise over here..im mainly on the Sprint site and now that the majority of the new 5G devices are seeing the same updates (TMO/Sprint) you get to see a bit easier how a update affects a device etc..since roughly 2ish months ago a LOT of issues have sprung up on both sides..oddly enough one of said issues only affects the TMO side and not the Sprint side..so add that into the fun of figuring out where the issues are coming in lol.

 

i like to have my info ducks in a row when i post things...anywho..a little reading to get an idea of just how off the wall things have been lately on Samsung world

 

https://community.sprint.com/t5/Device-Solutions/tkb-p/AndroidDevice

 

take a lil gander at how many devices are listed on some of those posts that are being affected lol.. i have been on these sites since the original HTC Evo...issues here and there with maybe one or two devices sure..but this is just nuts lol

On my way home now when I get there I will read that link I wasn't sure if it was just a Samsung sang a T-Mobile thing or if everyone across the board was having this issue thanks again for the information