USBThetering trough phone slows down internet speed unless using Tetrd

JamesBonding · 2026-08-31 14:28:38

So i had a lot of issues trying to resolve my slow internet speed, until i stumbled upon Tetrd. Its listed on the wiki. My internet works great now around 15MB download speeds. Before Tetrd it was capped to 4.5MB. Its my providers fault, which I didn't think was the issue. The issue now is that Tetrd requires a subscription. Is there a way to set up what Tetrd does trough a terminal? Or another app that doesn't require a subscription. Ive tried changing TTL ipv4 and ipv6 to both 65 and 129. That did not help. SOCKS proxy is not an option. Since its listed on the wiki as only browsing. Any help is appreciated. Thank you.

Last edited by JamesBonding (2026-08-31 14:32:11)

cryptearth · Yesterday 05:00:56

Uhm, I don't see the need for such app - as every modern android has usb tethering built-in - and usually it's not possible for the mobile provide to recognize whether the traffic originates from the phone itself or from a tethered device
what phone do you use? is it an unlocked/stock rom or provider branded? if branded: have you tried to flash a stock rom?

seth · Yesterday 06:51:07

https://wiki.archlinux.org/index.php?ti … did=871895
The entire section was added late April

JamesBonding · Yesterday 10:45:27

cryptearth wrote:

Uhm, I don't see the need for such app - as every modern android has usb tethering built-in - and usually it's not possible for the mobile provide to recognize whether the traffic originates from the phone itself or from a tethered device
what phone do you use? is it an unlocked/stock rom or provider branded? if branded: have you tried to flash a stock rom?

Im using a samsung galaxy s23 ultra. Im sure its a stock rom. If im not using tetrd the download speeds are slow. I have no issues connecting without the app but if its not turned on the speed is slower. I didnt try a new rom on my phone.

JamesBonding · Yesterday 13:49:51

seth wrote:

https://wiki.archlinux.org/index.php?ti … did=871895
The entire section was added late April

Yes Ive read it. There is no solution to the broadband throttle, except easy tether and tetrd. Both of them require some kind of subscription to function normally. I didn't try out the AziLink setup since I don't know if that's the solution to my problem.

cryptearth · Yesterday 15:34:48

Many cell carriers treat hotspot data independently from the data used by the phone itself. Unless one is subscribed to a data plan that includes hotspot data, native Android tethering may not be available or will be throttled to impractically slow speeds. Some apps have been created to work around this problem.

I question how my mobile carrier would even be able to tell the difference?!
Android is based on Linux - that means the Linux netfilter stack comes along with it. Tethering is sime NAT-routing: The phone provides an inner LAN via tethering (wifi, usb) and every outboubd traffic is mixed in with traffic that originates on the phone itself. I just doubt that it is even possible to detect the difference without deep packet inspection - which would require a TLS terminator in the mobile carrier cg-nat infrastructure - which would likely conflict with privacy laws (ok, except for dictatorships like Russia or China or USA which spy on everything anyway).
If at all traffic shaping is likely based on target destination - like: why would a phone connect to steam game cdn? This Tetrd app just hides that via a pseudo vpn by tunnel your traffic through some random node your carrier likely just doesn't know and hence doesn't throttle.
A simple test would be to setup a OpenVPN to a server you control and see if you can reproduce the effect. If so you won't get away without spending money in one way or another - either for a vps or a vpn.

If anyone has further information on this feel free to hook me up - I guess A-not-I likely won't enlighten me here ...

seth · Yesterday 17:17:43

JamesBonding wrote:

Yes Ive read it.

Sorry, the information was meant for @cryptearth

Android is based on Linux - that means the Linux netfilter stack comes along with it

@cryptearth google TTL sniffing, there's one extra hop - and there're probably other techniques to fingerprint the source.
The way around that would then be to wrap the packages and actually legitimately originate them from the phone - whether those proprietary apps do that, who knows. You're combatting shit with more shit - ISPs could just offer sustainable data plans instead of yelling the lowest number - the enshittification cycle of a true idiocracy.

Arch Linux

#1 2026-08-31 14:28:38

USBThetering trough phone slows down internet speed unless using Tetrd

#2 Yesterday 05:00:56

Re: USBThetering trough phone slows down internet speed unless using Tetrd

#3 Yesterday 06:51:07

Re: USBThetering trough phone slows down internet speed unless using Tetrd

#4 Yesterday 10:45:27

Re: USBThetering trough phone slows down internet speed unless using Tetrd

#5 Yesterday 13:49:51

Re: USBThetering trough phone slows down internet speed unless using Tetrd

#6 Yesterday 15:34:48

Re: USBThetering trough phone slows down internet speed unless using Tetrd

#7 Yesterday 17:17:43

Re: USBThetering trough phone slows down internet speed unless using Tetrd

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