F5F Stay Refreshed Power Users Networks Really Low Download speeds from my Realtek wifi card HELP !!!!!!!!!!!!!!

Really Low Download speeds from my Realtek wifi card HELP !!!!!!!!!!!!!!

Really Low Download speeds from my Realtek wifi card HELP !!!!!!!!!!!!!!

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Shibess
Member
129
01-13-2026, 02:31 AM
#1
In recent days I've noticed significantly slow internet performance on the 5GHz Wi-Fi band using my laptop (Legion5 16IRX9). I'm unsure of the cause yet. I've tried several troubleshooting steps: updated network drivers first, reset the adapter, toggled it on and off, and even turned the router itself on and off. However, other devices like phones and PCs are downloading and uploading data smoothly. The upload speeds seem normal, but download speeds vary and aren't consistent. I've attached a screenshot for reference.
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Shibess
01-13-2026, 02:31 AM #1

In recent days I've noticed significantly slow internet performance on the 5GHz Wi-Fi band using my laptop (Legion5 16IRX9). I'm unsure of the cause yet. I've tried several troubleshooting steps: updated network drivers first, reset the adapter, toggled it on and off, and even turned the router itself on and off. However, other devices like phones and PCs are downloading and uploading data smoothly. The upload speeds seem normal, but download speeds vary and aren't consistent. I've attached a screenshot for reference.

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pinkwolf_pvp
Member
144
02-02-2026, 09:07 PM
#2
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pinkwolf_pvp
02-02-2026, 09:07 PM #2

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Sly202001
Member
169
02-03-2026, 04:48 AM
#3
I downloaded drivers from Realtek and the official Lenovo site. I also checked Microsoft’s update catalog. 2) I tested on a 5GHz network from the same spot. 3) The problem started just three days ago. Under normal conditions I got solid speeds, but now it’s inconsistent. 4) The Wi-Fi password is locked, so no one else can access it. 5) I tried too, but the issue only affects my laptop. Could you rephrase this? When I run a speed test, downloads on my machine vary and don’t stay steady, while uploads seem fine. It’s confusing.
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Sly202001
02-03-2026, 04:48 AM #3

I downloaded drivers from Realtek and the official Lenovo site. I also checked Microsoft’s update catalog. 2) I tested on a 5GHz network from the same spot. 3) The problem started just three days ago. Under normal conditions I got solid speeds, but now it’s inconsistent. 4) The Wi-Fi password is locked, so no one else can access it. 5) I tried too, but the issue only affects my laptop. Could you rephrase this? When I run a speed test, downloads on my machine vary and don’t stay steady, while uploads seem fine. It’s confusing.

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Will_Nei
Member
142
02-03-2026, 05:31 AM
#4
Depending on your proximity to others, someone nearby might have improved their configuration, leading to issues. Consider using a Linux live USB; if the problem persists, it may point to hardware concerns. A failing Wi-Fi card could be the issue—often inexpensive and simple to swap, but possibly another antenna wire is loose, which is easy to fix.
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Will_Nei
02-03-2026, 05:31 AM #4

Depending on your proximity to others, someone nearby might have improved their configuration, leading to issues. Consider using a Linux live USB; if the problem persists, it may point to hardware concerns. A failing Wi-Fi card could be the issue—often inexpensive and simple to swap, but possibly another antenna wire is loose, which is easy to fix.

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chayden2k6
Member
119
02-08-2026, 06:06 PM
#5
I didn’t mean to lose your attention, but earlier today the problem seemed to disappear for a while before returning. I’ll make sure to check if someone is consuming the bandwidth. Also, I’ll attempt using Linux USB to see if it resolves the issue.
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chayden2k6
02-08-2026, 06:06 PM #5

I didn’t mean to lose your attention, but earlier today the problem seemed to disappear for a while before returning. I’ll make sure to check if someone is consuming the bandwidth. Also, I’ll attempt using Linux USB to see if it resolves the issue.

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Draker59
Member
126
02-15-2026, 05:06 PM
#6
@Miran Haider Could you share the brand and model of your wireless router or gateway? Also, are other devices connected to the same network while you're conducting these speed tests? I'd like to review the data from a WiFi spectrum analyzer. Just a reminder, a couple of days ago was Christmas... many people received new electronics, possibly including WiFi equipment... everyone seems excited... Where do you think this conversation is heading?
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Draker59
02-15-2026, 05:06 PM #6

@Miran Haider Could you share the brand and model of your wireless router or gateway? Also, are other devices connected to the same network while you're conducting these speed tests? I'd like to review the data from a WiFi spectrum analyzer. Just a reminder, a couple of days ago was Christmas... many people received new electronics, possibly including WiFi equipment... everyone seems excited... Where do you think this conversation is heading?

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Ronoalrx
Junior Member
10
02-15-2026, 11:42 PM
#7
I resolved the problem by disabling Microsoft Virtual Adapter, and the speeds returned to normal. I also noticed another person on Reddit facing the same issue.
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Ronoalrx
02-15-2026, 11:42 PM #7

I resolved the problem by disabling Microsoft Virtual Adapter, and the speeds returned to normal. I also noticed another person on Reddit facing the same issue.