Unstable 5 GHz Wi-Fi hotspot connection between Android phone and laptop

[KarenK]

I’m sharing my mobile internet from an Android phone to a laptop. The phone receives internet via 5G, and then I use WLAN to share it. When the phone's hotspot is set to 2.4 GHz (Wi-Fi 4, IEEE 802.11n), everything works fine — the laptop quickly finds the network, connects without any issues, and the connection is stable.
However, when I switch the hotspot to 5 GHz (Wi-Fi 5, IEEE 802.11ac), the laptop struggles. It often doesn’t see the network at all, or if it does, it takes a long time to appear and usually fails to connect. Sometimes restarting the wireless adapter on the laptop helps, but not always.
When the laptop does manage to connect to the 5 GHz hotspot, the connection generally works well, though it occasionally drops, and then the laptop has trouble reconnecting.
In short, my laptop has trouble connecting to the 5 GHz Wi-Fi hotspot from my phone.

BIOS Version: X1505VA.304
Operating System: Microsoft Windows 11 Home (x64) Build 26100.4351 (24H2)
Network Card: RealTek Semiconductor RTL8821CE Wireless LAN 802.11ac PCI-E NIC
Driver Version: 2024.10.143.0
Driver Date: 07-Oct-2024

[Falcon_ASUS]

@KarenK 
May I ask if the 5GHz network you are having trouble connecting to is from the same wireless router as before? 
If so, I recommend bringing your laptop to another location with a 5GHz network (using a different router’s 5GHz signal). This way, you can cross-check whether the issue lies with your laptop’s wireless network card or the wireless router itself.

For the laptop, you can try uninstalling the wireless network card from Device Manager and then reinstalling the driver. For the wireless router, please check if the firmware needs to be updated, or try resetting the hardware and reconfiguring the connection. We apologize for any inconvenience this may cause.

[KarenK]

No, I tested it on different routers and even on various public 5 GHz Wi-Fi networks. The problem was present in all cases.
As for reinstalling the driver, I’m afraid that after uninstalling it I might not be able to install it again, since this laptop model can only connect to the internet via WLAN, as it doesn’t have an Ethernet port. I guess I would need to download the driver in advance and install it offline.

[eyebrowz]

Hi

I am a little confused.

Do you have an ISP and a Router?

Which laptop model is it?

Can you run the command

ipconfig -all     and post the output please.

[KarenK · Accepted solution]

In the first post, I already wrote what model of laptop and what model of wireless card. I don't think other data such as physical addresses of my device and others are needed to solve this issue.
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0901 update
It turned out that the issue was caused by 802.11d being enabled in the wireless adapter settings. I disabled this option and now my laptop switches between 2.4 GHz and 5 GHz instantly. Problems with connecting to 5 GHz have disappeared.

I think it would be good if Asus did not enable this option by default on laptops. I wasted a lot of time trying to find the cause of my issue.

[eyebrowz]

Fair enough.

I wish you luck.

BYE.