slow 5G

ajeagle2 wrote:

Why is TMobile 5G so slow? The only time my S22 Ultra is even close to 4G speeds is when connected to wifi. On 5G it's worse than 2G. I've had my sim card replaced but no change. I'm sitting in the middle of Scottsdale, AZ and can't hardly get a web page to open. I miss calls and get texts hours or days later. I tried a TMobile store but they are of zero help, all they do is sell stuff. If no one at Tmobile can help fix this then I am going to switch to Verizon. None of my Verizon friends have this issue, Verizon 5G is super fast. 

I just switched from Verizon and I can tell you that they are the worst for support, assuming you can get a hold of anyone that really knows anything. I think that is VZW found someone smart enough to help they fire them... IMO don't do it but you know what's best for your situation. 

Are you roaming? I travel sometimes through the southwest where t-mobile has poor coverage, even where their map is solid pink. if you unlock your android phone and swipe down once, at the bottom of the screen it should say what carrier you are on (or "Emergency Calls Only" or "Searching"); if it's not t-mobile your service is most likely being de-prioritized by the roaming partner. I've felt like I was on 1X or 2G while roaming, or sometimes things absolutely don't load at all and texts do not go through (and who knows if I missed calls). 

You ‘can’ try something .. not sure if it will help, those icons aren’t always correct (i.e. 5G / 5G UC will sometimes show when connected to LTE B2 or B66 and no n41 or n71)

You can ‘force’ (or try) n41 SA mode (or n71 SA) and disable LTE

Eg.  Last run indoors … 61Mbps down, 0.2Mbps upload.  5G.  (LTE + n71)

Forcing n41 SA only, it will show 'no service' , then after a few minutes it 'might' show 1-2 bars of 5G UC.  When it does .. 330-400Mbps download, ~2Mbps upload. (-110dBm, RSRQ -13dBm, SINR 5dB)

If I enable n41 + n71 SA, download is a little less (100MHz + 15MHz vs. 100MHz + 40MHz), but upload is better.  ~265Mbps/17Mbps.

Home Internet has numeric values and a visual placement guide.  It is somewhat more sensitive  - and directional.

This is one of the downsides the higher end of midband and 5G vs 4G.

Signal is less tolerant to noise , and range is shorter.

If I go outside, there is no issue.  

If you want to try and ‘play with the bands’ by all means.

Having the same exact issue, phone is extremely slow when not on wifi 

then its more than likely your area, sim card or phone.

im in Nor Cal and im on par with @formercanuck speeds.

for giggles i just ran a speedtest.net run..

478Mbps down

40.3Mbps up

24 ping

4ms jitter

this is while inside of a warehouse surrounded by a abundance of things that kill signal.

5GUC. I just ran a speedtest and it shows 61ms ping, 68Mbps down and .44mbps upload. Yes that is a decimal in front of the upload speed. To your 2G thought, I always have at least a 1 second lag if not more.

Hard to be worse for performance than 2g (~128-200kbps, 1second lag).

This might be something with your area.  In my area (SoCal) 5G (typically 5G UC) are 300Mbps to 1Gbps normally, and in a few areas … close to 2Gbps).

1.  Does your phone show '5G' or '5G UC'.  5G SA n71 is and can be worse than 4G LTE.  Often 5G NSA n71 (with LTE) doesn't always give better performance.
2. How ‘good’ is the signal, and is it ‘5G UC’ ?
3. Often indoors, 5G UC is really poor, and ends up on 5G which can be worse.  Eg.   Moto Edge 2022 - 5G UC, 'at home' outdoors , +500Mbps.   Indoors between 300Mbps and sometimes 15Mbps (5G n71 SA).

Fortunately, on Samsungs, you can disable some bands (Moto as well, not as easy).