The situation when the Internet speed on connected devices drops to critically low values when the access point is turned on is familiar to many smartphone owners. This is annoying, especially when you urgently need to transfer files or watch videos on your tablet. Often the problem lies not in a bad signal from a cell tower, but in incorrect software settings of the access point itself.
Modern devices based on Android have powerful network modules capable of operating in a wide range of frequencies, but by default the system often selects the most compatible rather than the fastest option. Understanding how wireless interfaces work allows you to circumvent these limitations. In this material we will look at how to get the most out of your communication channel.
Before embarking on complex manipulations with the engineering menu, it is worth eliminating trivial physical limitations. Sometimes it is enough to simply move the device closer to the window or change the operator for the result to become noticeable without deep intervention in the system. However, if the signal is stable and the speed is low, fine tuning will be required.
Selecting the optimal frequency and Wi-Fi standard
The most effective way to increase channel capacity is to switch from the outdated 2.4 GHz band to the more modern 5 GHz. The range 2.4 GHz is heavily loaded with neighboring routers and household appliances, which creates enormous interference. Go to 5 GHz solves this problem by providing wider data transmission channels.
To do this, you need to go to the access point settings. Depending on the shell version of your smartphone, the path may differ, but usually it looks like this: Settings → Connections → Mobile hotspot and modem → Access point setup. Here you should find the “Band” or “Frequency” item and force the value 5 GHz.
⚠️ Attention: Devices manufactured more than 7-8 years ago, they may not support the 5 GHz standard. If after switching the gadgets no longer see the network, return the setting to its original state.
It is also worth paying attention to the security standard. The use of the protocol WPA2-PSK is the gold standard, providing a balance between encryption speed and security. Outdated WEP or new, but sometimes unstable on older drivers WPA3can reduce the actual connection speed due to processor overhead for processing packets.
Setting up an access point (APN) for maximum speed
Often mobile providers prescribe in SIM cards have universal access settings that are not optimized for a specific type of traffic. Manually adjusting the access point APN (Access Point Name) allows you to set a direct and less loaded route to the operator's gateways.
To make changes, go to the mobile networks menu: Settings → SIM cards and mobile networks → Access points (APN). Select your operator's active profile and create a new one by copying the settings of the old one. In the field APN type you must enter a value default,supl. Make sure that there are no entries in the “Proxy” and “Port” fields - they should be empty.
Some users are experimenting with the parameter MCC and MNC, however, changing them without good reason is not recommended, as this can lead to a complete loss of the network. A safer method is to clear the “Authentication Type” field or set a value PAP, which in some cases speeds up establishing a connection with the base station.
After creating a new access point, be sure to restart your smartphone so that the network stack applies the changes correctly.
Using a USB modem instead of Wi-Fi
If your goal is to provide stable Internet for a laptop or desktop PC, wireless distribution is often an extra link that introduces delays. Connecting via a USB cable eliminates signal loss over the air and ensures direct data transmission with minimal ping.
The mode is activated through the developer menu or quick settings. Connect your phone to the computer with a cable, then find the item USB modem in the phone settings and activate it. A new network connection will appear in the computer's device manager, which will work much more stable than a virtual Wi-Fi adapter.
The advantage of this method is also the simultaneous charging of the device. When actively distributing via Wi-Fi, the smartphone battery drains extremely quickly due to the operation of two radio modules (4G/5G reception and Wi-Fi transmission). The cable relieves this load, allowing you to work non-stop without overheating.
☑️ Checking the USB modem connection
Hidden settings through the engineering menu
For advanced users, there is access to deep settings of the radio module through special codes. Entering the command ##4636## in the Phone application opens a test menu where you can force the network type.
In the “Phone Information” section, find the “Preferred network type” drop-down list. By default, there is often a mixed mode, for example, LTE/TD-SCDMA/GSM. Selecting strict mode LTE Only (or NR/LTE for 5G) prevents the phone from switching to slow 2G/3G standards at the slightest signal fluctuation.
However, be careful: in mode LTE Only incoming voice calls may not go through if your operator does not support the technology VoLTE. In this case, you will remain without connection until you return automatic network selection. This is a powerful tool, but it requires understanding the terms of your tariff.
⚠️ Attention: The engineering menu interface differs on Qualcomm, MediaTek and Exynos processors. If the code does not work, try installing the Activity Launcher app from the store.
Impact of background processes and system limits
The system Android has built-in power saving mechanisms that can aggressively limit the background activity of applications, including the hotspot service. This leads to the fact that when the smartphone screen is locked, the distribution speed drops to almost zero.
You need to go to the battery settings and find the “Wi-Fi Hotspot” or “Modem” application. Set the operating mode to “Unlimited” or disable energy optimization for this system service. This will prevent the network interface from falling asleep during idle moments.
Also check whether heavy system updates or cloud storage synchronization on the smartphone itself are running in the background. If your phone is downloading a multi-gigabyte firmware update, it will be impossible to share the remaining bandwidth with other devices. Priority is always given to local tasks of the donor device.
| Parameter | Standard value | Optimal value | Impact on speed |
|---|---|---|---|
| Frequency range | 2.4 GHz | 5 GHz | High (up to 3 times) |
| Security protocol | WPA3 / WPA2 | WPA2-PSK | Medium (compatibility) |
| Network type (engineering) | Auto (5G/4G/3G) | LTE Only / 5G Only | High (stability) |
| Energy saving | Optimized | No restrictions | Critical (ping) |
Third-party applications and resetting network settings
If manual configuration does not produce results, you can use specialized software. Applications like NetShare or Wi-Fi Hotspot allow you to create access points with advanced settings that are not available in the standard menu, including controlling the channel width.
However, before installing third-party software, try performing a complete reset of the network settings. This will return all Wi-Fi, Bluetooth and mobile network configurations to factory settings, removing possible software errors accumulated during use.
The reset path is usually located in the System → Reset → Reset Wi-Fi, mobile data and Bluetooth settingssection. Please note that after this procedure you will have to re-enter passwords for all saved Wi-Fi networks and pair Bluetooth devices.
Why does resetting help?
Over time, in the network configuration files Registry errors and conflicting DNS records accumulate. A reset clears the network services cache, forcing the system to re-register with the operator's network from scratch.
Physical factors and site selection
No software tweaks will help if the signal level received by the smartphone is on the verge of losing connection. The antennas of mobile phones are much weaker than the antennas of stationary routers, so the location of the device plays a key role.
Try to place the smartphone on a windowsill or hill, eliminating obstacles in the form of metal structures or mirrors. Even rotating the device 90 degrees can change the signal reception pattern, since the orientation of the internal antennas will change relative to the tower.
It is also worth considering the load on the operator’s base station. In the evening, when your neighbors are actively using the Internet, the speed may drop regardless of your settings. In such cases, changing the frequency range (if the operator supports different bands) or using a directional antenna (for advanced users with a soldering iron) may be the only way out.
The combination of a USB cable, the 5 GHz band and turning off power saving gives the maximum speed increase in 90% of cases.
Why is the speed through the modem lower than in reality? phone?
This is due to double signal conversion. The phone receives data via 4G/5G, processes it with a processor and re-radiates it via Wi-Fi. Each stage introduces delays and reduces actual throughput due to losses on routing protocols.
Can Internet distribution drain the battery to zero in an hour?
Yes, with active use and a poor signal. The radio module operates at maximum power, trying to maintain communication with the tower and simultaneously broadcast Wi-Fi. Be sure to connect a charger with a power of at least 15-20 W.
Does the number of connected devices affect the speed?
Absolutely. The channel is divided among all clients. If one laptop is downloading torrents, other devices will experience serious lags. Limit the number of connections in the access point settings to 2-3 devices.
How to check if 5 GHz is working?
Use the Wi-Fi Analyzer application on the connected device. If you see your network in the 5 GHz band (usually channels above 30), then the setting was applied successfully. In the 2.4 GHz range, channels are usually numbered from 1 to 13.