HotSpot Routing Problem!!!

[Rene1002]

Hi,

I have changed from my aged Galaxy S9+ to the brandnew S23 Ultra. I am using extensively the S23 Ultra as an AccessPoint. - as I did with the S9+ before - perfectly working - without any troublei n more than 5 years.

Besides that Selinux is taking a lot of (network) functionalities from TERMUX which I was used to before, I am totally disapointed in addition by some S23 Ultra (Android ?) inconveniences:

Supposed the S23 Ultra (shortly S23U) is spanning an AdHoc WiFi for 2 ESP32 MCs and two (old) S9+ Galaxy Smartphones and my Notebook. All nodes are visible with their MACs and IP numbers in the extended S23U Hotspot config menue - so far so good!

Internet Access is given! Of course they are fully accessible by the S23u+.

BUT ...

1. inconvenience: The last two IP network portions of the Hotspot are not static any more. Example - the address is generated exemplarily as 192.168.xxx.yyy, whereas xxx and yyy are given randomly after activating the S23U Hotspot functionality - it is not static defined any more, as it was the behavior before in the Galaxy S9+ world (always 192.168.43.0/24 or 192.168.60.0/24).

2. inconvenience: I am using extensively openSHH. Logging into the S23U from my Notebook via winscp works perfectly. But the two S9+ are not accessible any more via openSSH from my notebook.

Also the nmap view initiated on each S9+ only lists the S23U IP address (and their own adddress), but not the addresses of the other nodes - (although they are fully accessible from the S23U). Internet Access of the 2 S9+ via S23U (as hotSpot) is fine!

And now the most crazy magic:

Sometimes the restrictions of the 2nd inconvenience are totally gone ... all works fine - alle 5 nodes in the network can see and access eachother ... !!!

Then I can login via winscp into each S9+ .... and also do see the IoT devices and my notebook via nmap being processed on the two s9+ ...

For me this seems to be a temporary (random) HotSpot routing problem in the S23U (or in the latest Android version?) ?

Or is this a (known) bug or a "sophisticated" feature of the S23U programmers in order to annoy Android or S23U Users?

And why did this crazy programmers change form the static subnetwork adresses now to random network numbers philosophy ? What shall the benefit be ....?

Or ist the 2. inconvenience a further side effect of the well known Wifi problems of the S23U which pops up everywhere in the Internet criticisms?

What do you think? Have you made similar experiences, please ?

Any hint, any advice, any link, ... is pretty much appreciated!

Thanks very much for reading.

BR Rene.

[-Robot-]

Surely the question is why are you using you phone to, route, acts as a access point? Performance must be horrific as you using you phone the way its not intended for

[Rene1002]

I honestly beg your pardon Sir ... !

This is very, very, very tiny traffic (only some TCP/IP packets per message, no streaming or any other bigger traffic) which I am exchanging between Smartphones and IoT devices.

Please, please,please,  do not advise me, that a Snapdragon newest processor generation is not able to handle a tiny routing table properly (let's say for 10 devices in total) ...! (max. 10 ist the Android specification - what I know - according to the Telecom's interest that noone is misusing to resell his mobile LTE - service contract by the paid service of a WifI Hot Spot functionality to interested parties)!

The Catalog price for my "Smartphone" S23U (1TB) is demanding is 1,800 Euro fairly ... Street price meanwhile still 1,500 Euro.

Just to clarify: This is only the matter of a simple proper programming / installation and managing of a very tiny routing table  - no more!

Even an aged Samsung S9+ could do it better than the actual Samsung flagship - 5 years later!

It is definitely not a matter of processor power, device memory, Interfaces (WiFi), bus structure (you name it) ...

I will keep on this issue alive in the Internet making this a topic of interest in all big technology forums ... that Samsung's flagship  is not able to properly manage a routing table for even 5 (and definitely not at all for 10)  devices.

The technical news Magazin "Heise Verlag" I will also inform about this very annoying topic when no professional technical statement of Samsung will follow about the near  roadmap milestone  when this issue will have been fixed finally.

BR Rene

[Tourbillon De La Vie]

It might be worth  checking, in Google support forum, if it is internal Androd 13 changes 

[-Robot-]

I was just wondering why? As this seems like an out of ordinary thing to do

Not criticising as you use your phone you like

You post away mate

[Rene1002]

Sir , sorry ...

... because this will also mean, that a typical "normal" Use Case - let's say a family with 5 members (3 Children's and 1 Wife's Smarthones) and a 5th (Father's) Samsung S23U Smartphone (acting as an HotSpot) to provide Internet Access for his family does not work properly /reliably !!!

This is the statement!

And even more ... I didn't test less than 5 devices in depth .. but I do also remember, that even 3 devices randomly  didn't work (but yes, they worked more often than 5 devices reliably ... but  5 devices will fail in more than 95%).

There is nothing special in my use case which is different to the daily demand of xxx thousands of other S23Ultra Users worldwide!

Just test it with 4 regular Smarthones  plus  1 Samsung   S23U flagship - acting as an  Access point.

And if you will succeed .. than this will mean, there are different versions of S23U in the market (just like this seems to be the fact for WifI-6 issue)

BR Rene

[Rene1002]

Thanx very much for your suggestion. Sounds reasonable ... BUT:

Please - be rerminded - i have paid 1,500€ directly to my contract partner Samsung ... so I am not willing to discuss this issue with the Android responsibles ...!

I'm used to always talking to my contractor - they owe the functionality I paid for!

BR Rene

[Rene1002]

This is the answer that ChatGPT has just given to me:

"

The maximum number of guests that can connect to the Internet via an Android smartphone hotspot depends on several factors, such as the smartphone's capabilities and the type of connection it uses. As a rule, most Android smartphones can connect up to 8-10 devices at a time via a hotspot. However, it is important to note that the number of devices connected through a hotspot can affect the overall performance of the hotspot. If too many devices are connected, it may result in a slower Internet connection."

Translated with www.DeepL.com/Translator (free version)

BR Rene

[Tourbillon De La Vie]

Things/functionality gets changed with new Androd versions and that's dictated be Google

[Rene1002]

As said before:

ChatGPT confirms me ... and  ... Samsung is my contract partner!

BR Rene