The situation where the 4G indicator on a smartphone shows a full signal, while a laptop a meter away barely loads pages is familiar to many users. Tele2You expect high speed, but in reality, you get only a pitiful excuse for an internet connection that can barely handle instant messaging. This is especially annoying when you urgently need to send a large file or conduct a video conference.
The problem lies not only in the cellular operator's coverage but also in the technical limitations of the signal transmission process itself. The smartphone must simultaneously receive data from the base station via radio and transmit it via Wi-Fi to your computer, which places a tremendous load on the processor and radio module. This "dual" operation often becomes the bottleneck of the entire system.
In this material we will examine in detail why the operator Tele2 It can limit traffic, how cellular standards affect the final speed, and which hidden Android or iOS settings can dramatically change the situation. Understanding the physics behind this process will help you avoid unnecessary expenses on expensive routers if the problem can be solved with software.
Technical limitations of modem and radio channel mode
The main reason for the slowdown lies in the architecture of modern smartphones. When you turn on a hotspot, the device switches to dual-role, where the radio module must divide the time between receiving the signal from the tower (downlink) and transmitting it to the laptop (uplink). This inevitably leads to a drop in throughput, sometimes up to 50% of the original values.
Furthermore, the supported communication standard plays a critical role. If your phone is in a 3G-only or unstable 4G coverage area, the speed will be slow by default. The carrier Tele2 is actively developing the LTE network, but in some areas the density of base stations is still insufficient for reliable reception at high frequencies that provide maximum speed.
It's also important to consider the Wi-Fi band your smartphone uses for sharing. Many devices broadcast on the 2.4 GHz band by default, which is heavily polluted by nearby routers and household appliances. Switching to 5 GHz (if your phone and laptop support this standard) can double performance.
It's also worth remembering that smartphone antennas are significantly less powerful and sensitive than those of full-fledged 4G routers. They aren't designed to continuously receive a weak signal and then retransmit it, which leads to overheating and throttling (reduced processor frequency) during prolonged use.
Operator policies and tariff plan restrictions
One of the most common reasons for low speed is not a technical malfunction, but the terms of your tariff agreement. Operator Tele2, like many others, can limit the speed of Internet distribution if your tariff plan does not include unlimited traffic distribution or has hidden limits.
Users often don't realize that their plan includes a dedicated pool of gigabytes specifically for modem mode. Once this limit (which can be as little as 3-5 GB per month) is reached, the speed is throttled to 64 or 128 kbps, making normal operation impossible. Checking your remaining traffic in your personal account is the first step.
There is also a concept DPI (Deep Packet Inspection). The operator analyzes the traffic passing through and sees that you're sharing internet on your PC (determined by the TTL value or the nature of your requests). In response, the system can automatically apply throttling policies for certain types of traffic, such as torrents or video streaming.
⚠️ Attention: Tariff terms and traffic limitation policies are subject to change by the operator at its sole discretion. Always check the current terms of your tariff plan in the official "My Tele2" app or on the operator's website before making any long-term plans.
The impact of 3G, 4G and 5G communication standards on speed
Internet speed directly depends on the mode your smartphone is currently operating in. Even if the 4G icon is displayed on the screen, the phone may be connected to a base station that is overloaded with subscribers or operating in narrowband mode. In this case, the actual speed will be the advertised one.
Technology LTE 4G offers high speeds, but they vary greatly depending on the distance from the tower and the presence of obstacles. Building walls, trees, and even rain can weaken the signal. If the phone switches between standards (for example, from 4G to 3G and back), the connection is constantly interrupted, creating the illusion of slow speeds.
For stable operation, it's essential that the phone be locked to a single network standard. Forced switching to "4G Only" mode often yields better results than automatic selection when the device struggles to latch onto a weak 5G signal or unstable 3G.
How to find out the real signal speed?
Click on the access point settings or use the engineering menu (code ##4636## (on Android) to see the signal level in dBm. A value above -90 dBm is considered good, while a value below -110 dBm is considered very weak.
The table below shows approximate speed values for different communication standards in real-world conditions, not in an ideal laboratory:
| Communication standard | Theoretical max (Mbps) | Real average (Mbps) | Stability |
|---|---|---|---|
| 3G (HSPA+) | 42 | 2 - 6 | High |
| 4G (LTE) | 300 | 10 - 40 | Average |
| 4G+ (LTE-A) | 600 | 30 - 80 | Low (depending on aggregation) |
| 5G | 1000+ | 100 - 300 | Low (low coverage) |
Setting up an access point and selecting a frequency band
Properly configuring your smartphone's hotspot is key to success. Go to your mobile network settings and find "Access Point" or "Tethering." It's important to pay attention to the Wi-Fi frequency range. If it's set to "Auto" or "2.4 GHz," try forcing it. 5 GHz.
The 5 GHz band offers higher data transfer rates and is less susceptible to interference from microwaves and neighboring routers. However, it does have a drawback: a shorter range. The laptop must be located within close proximity to the phone (1-3 meters) for stable operation.
The security protocol also matters. Make sure you are using a standard. WPA2-PSK or WPA3Outdated encryption protocols can slow down the handshake between devices, creating delays before data transfer begins.
☑️ Setting up the perfect access point
Don't forget about the number of connected devices. If you have multiple devices connected to your smartphone, the bandwidth is divided between them. For maximum speed on your laptop, disconnect all unnecessary devices from the access point.
Problems with APN and network settings on Android/iOS
Often the problem lies in incorrectly configured access points (APN). Operator Tele2 Provides automatic settings, but they may not be optimal for tethering. Make sure the correct protocol type is specified in the APN settings.
Go to your mobile network settings, select your SIM card, and go to "Access Point Names (APN)." Find the active profile. tele2.internet. Make sure the APN Type field is set to default,supl or simply default. Sometimes adding a parameter dun (dial-up networking) helps to bypass some operator restrictions.
Name: Tele2 InternetAPN: tele2.internet
Proxy: (empty)
Port: (empty)
Username: (empty)
Password: (empty)
APN type: default,supl
APN protocol: IPv4/IPv6
On devices iOS APN settings are usually hidden, but you can check them through your carrier profile or by resetting your network settings. On Android, you can create a new access point with modified parameters, for example, by changing the protocol from IPv6 to IPv4, which is more stable in some regions.
⚠️ Attention: Be careful when changing APN settings. A single character error can completely disable your mobile data connection. Take a screenshot of the original settings before editing.
External factors: heat, battery, and background processes
The smartphone's physical condition shouldn't be discounted either. Sharing Wi-Fi is a power-intensive process, causing significant heat in the processor and modem. When critical temperatures are reached, the system throttles, artificially lowering frequencies to cool down, which directly impacts data packet processing speed.
Additionally, background processes on your phone itself can eat up some of your bandwidth. App updates, photo syncing to the cloud, or navigating all compete for resources with your laptop. Close all unnecessary applications before starting work.
Power saving is another speed killer. If your phone has power saving mode enabled, it may limit Wi-Fi performance or reduce processor speed. For tethering, it's best to switch to "Performance" or "Unlimited" mode.
Frequently Asked Questions (FAQ)
Why does the speed drop after connecting a laptop, although it flies on the phone?
This is due to the overhead of NAT (network address translation) and Wi-Fi signal encryption. The phone spends resources repackaging packets from mobile format to Wi-Fi format, which creates latency and reduces the overall throughput.
Is it possible to bypass Tele2's upload speed limit?
Officially, no. Technically, users change the TTL value in the file. build.prop (on rooted Android) or configuring the router to hide the fact that it's being shared. However, the operator can detect this based on traffic behavior (fingerprints), so there's no guarantee.
Does charging my phone affect internet speed when sharing data?
Yes, it does. When plugged in, the phone doesn't conserve power for the radio module or processor. However, charging causes additional heat, so monitor the device's temperature to avoid throttling.
Which USB modem is better: Wi-Fi hotspot or USB cable?
A USB cable (USB tethering) is always more stable and faster. It provides a direct, lossless Wi-Fi connection, runs cooler, and charges your phone simultaneously. Use a cable if your laptop allows it.