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#1 2024-03-21 20:38:32

flowcheer
Member
Registered: 2024-03-21
Posts: 3

Slow Internet Speed with TL-WN722N Wifi Adapter

Recently, I've been having speed issues with this adapter, it was normal some days ago but since yesterday the internet speed has been capped to 20 mbps, which is way less than what my internet can offer. I have already tried playing with NetworkManager's settings like disabling Power Management, and installing different drivers i found in other forums reporting the same issue (though most of them were for other distros so that didn't really help), I tried with the 8188eu-aircrack-dkms-git and 8188eu-dkms-git aur repositories, and lwfinger/rtl8188eu driver on github, but none of them give me a fix.

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#2 2024-03-22 08:40:12

seth
Member
Registered: 2012-09-03
Posts: 53,126

Re: Slow Internet Speed with TL-WN722N Wifi Adapter

the internet speed has been capped to 20 mbps

You're likely getting an 802.11a/g connection (only) - check the journal as for why that might be and compare it to previous journals when you got n/ac/ax

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#3 2024-03-25 04:57:06

flowcheer
Member
Registered: 2024-03-21
Posts: 3

Re: Slow Internet Speed with TL-WN722N Wifi Adapter

You were right, the band was set to 802.11a only. I tried changing the connection to bg with nmcli but i still got the same speed.

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#4 2024-03-25 08:17:32

seth
Member
Registered: 2012-09-03
Posts: 53,126

Re: Slow Internet Speed with TL-WN722N Wifi Adapter

You want "n" or ac or ax - "bg" won't help you here at all.
https://en.wikipedia.org/wiki/IEEE_802. … escription (the maximum speed is theoretic, the article mentions realistic effective throughputs and 20 mbps is the practical limit for a/g.

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#5 2024-03-25 21:16:47

flowcheer
Member
Registered: 2024-03-21
Posts: 3

Re: Slow Internet Speed with TL-WN722N Wifi Adapter

When trying to change the band to n or ac or ax, nmcli tells me that it only allows a and bg, which is weird because I was able to change to another bands before

Error: failed to modify 802-11-wireless.band: «n» not between [a, bg].

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#6 2024-03-25 21:17:31

seth
Member
Registered: 2012-09-03
Posts: 53,126

Re: Slow Internet Speed with TL-WN722N Wifi Adapter

Please post your complete system journal for the boot:

sudo journalctl -b | curl -F 'file=@-' 0x0.st

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