I know that this is an old thread. However, they ARE STILL DOING THIS. It is hard to understand why. I don’t know what it “buys” them, except a lot of customer annoyance.
I’d like to refresh this very old thread. T-Mobile still refuses to fix this issue. I am now on a Galaxy 23. The same thing has been going on 4+ years. They still “automagically” change this setting to Cellular Preferred. They have no business ever touching this setting. It is simply a customer preference. A preference should have nothing to do with what is actually happening while a phone moves. What should happen (obviously) is that when a phone move to a location where there is no Wi-Fi they should (silently) change over to the cell network. IF the customer has Wi-Fi preferred and they go back to a location with Wi-Fi they should silently change over to Wi-Fi. There is absolutely no need for this user preference to ever change unless the user changes it manually.I have tried to explain this simple concept to T-Mobile reps on at least 7 occasions (including over an hour today). For whatever reason they are completely unable to understand this simple concept. This is very, v
It is definitely worth a try. I’ll give it a shot. There is a big “however” involved here though. The phone (or maybe T-Mobile One UI) has no business changing a setting that I have deliberately made. That is not to say that on a case-by-case basis the phone/T-Mobile shouldn’t opt to use cellular or wifi. In this case I would interpret that to say: “Unless there is a reason not to, I very strongly suggest that you use ….”.I do have to say that I may have been incorrect on what was going on with specific reference to the S22 with the release date firmware. I assumed that the phone was changing to cellular preferred, and that cellular (4G in my area) just didn’t work well. I now believe that there were two things going on. First, wifi calling just didn’t work at all with the release date (factory) firmware. That is, it was completely non-functional That would explain why the phone was constantly reset to “cellular preferred”. Second, 4G calling had major problems that resul
Yesterday I downloaded a new S22 firmware version. It appears that this firmware (or possibly this in combination with a fix on the T-Mobile servers) have fixed the issue with Wi-Fi calling. The previous issues with S L O W speech at the beginning of calls seem to have gone away. In addition, the remainder of the call seems to be much, much clearer. I no longer have very static laden Wi-Fi calls. Instead the calls seem to be crystal clear as they should have been all along.I am still not 100% convinced that the problem is gone for good (it was always somewhat intermittent), but so far so good. I am encouraged by the quality of the calls.Note that the change list from the Samsung firmware update did not list this fix as a part of the changes. Perhaps they were just embarrassed.
Well, I was actually surprised recently. My phone preferences automatically “optimized” briefly to “prefer wifi” rather than the other way around. That was the first time I’ve seen that. Either way, the phone/T-Mobile should never change a user preference. It can/should change which way it chooses to make/receive a particular call, just not a preference.
More information -- I got a call back from Tech Support and their trouble ticket related to this issue. Basically, TM knows that there is a problem. They are “working on it”. They have no idea when the issue will be resolved.
After hours on the phone with tech support they suggested using a Cell Spot pico cell. Yeah, that didn't work either. Of course all that does is convert a cell signal to what I guess is the equivalent of a wifi call. Still I had to try it.I'd suspect some sort of weird problem on my LAN if I didn't know that the only thing has changed is the phone.The same goes for suspecting an issue with the tm wifi calling hardware/software on their servers. If the S21 worked the S22 should work the same or better. Not!
I agree that it is likely some TMo bloat/firmware that is doing this since the VZW phone I was using didn’t have the problem.Yes, I knew that they were likely just trying to get rid of me. Since I’m retired I can take the time to go to Level 2/Manager support. That is a task for this week now that I’ve done my research.In the mean time I’m trying the Tasker hack that is supposed to automatically turn wi-fi preferred on if anything turns it off. I don’t know yet if that is going to help, but it is worth a try. Samsung support said that this isn’t their problem since all wi-fi calling features are carrier specific. I had to try.I don’t know if there is a root for the S22 yet. Even if there is I probably won’t do it yet since with a new model there is often a flurry of stock firmware updates for the first few months. I’ve read that there is one coming.
I was using an S21+ originally on the Verizon network and ported to TM. This problem did not happen on that device. I purchased a T-Mobile S22 Ultra and I immediately started getting this problem.I have 1 - 2 bars cellular and 2 excellent Wi-Fi routers with a super high signal strength. So, there is no possibility that anything is actually being “optimized”. ‘I did call TM tech support. They blamed Samsung. It is very disconcerting that this problem has been going on for years!I have no problem with the phone temporarily switching to cellular if the phone sees a problem with wi-fi. However, I have a major problem with them resetting the wi-fi preferred option I deliberately set. That makes zero sense. Suddenly a 30 second issue with Wi-Fi strength becomes a permanent preference for cellular???? This is a huge problem because all my calls are going from crystal clear wi-fi to very broken cellular.At the very least if they “optimize” to cellular they should re-optimize back to w
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