F5F Stay Refreshed Power Users Networks The new PC is performing much slower than expected.

The new PC is performing much slower than expected.

The new PC is performing much slower than expected.

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K
Koningtwann
Member
148
09-10-2025, 04:22 AM
#1
I assembled a fresh PC a few days back using the parts list you shared. The built-in Wi-Fi wasn’t performing well—signal was weak and it failed to connect. I replaced the card with the same one from my old setup, which worked great for me (PCE-AC56). After installing the new card, it still didn’t connect; it only detected networks with poor signal strength. I updated drivers, firmware, and even moved the Wi-Fi chip to a different PCIe slot, but nothing helped. I’m trying everything since I’m tech-savvy, but I’m stuck on restoring my old internet speeds.
K
Koningtwann
09-10-2025, 04:22 AM #1

I assembled a fresh PC a few days back using the parts list you shared. The built-in Wi-Fi wasn’t performing well—signal was weak and it failed to connect. I replaced the card with the same one from my old setup, which worked great for me (PCE-AC56). After installing the new card, it still didn’t connect; it only detected networks with poor signal strength. I updated drivers, firmware, and even moved the Wi-Fi chip to a different PCIe slot, but nothing helped. I’m trying everything since I’m tech-savvy, but I’m stuck on restoring my old internet speeds.

L
lemonadebaker
Member
59
09-10-2025, 04:22 AM
#2
Do you confirm the antennas are secured? Are you tracking performance using speed tests, Steam downloads, or similar methods?
L
lemonadebaker
09-10-2025, 04:22 AM #2

Do you confirm the antennas are secured? Are you tracking performance using speed tests, Steam downloads, or similar methods?

S
SlyMan9898
Member
55
09-10-2025, 04:22 AM
#3
The PCIe slot operates within a specific frequency range, though this detail might not always be obvious. You may want to check the manufacturer's specifications for precise information.
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SlyMan9898
09-10-2025, 04:22 AM #3

The PCIe slot operates within a specific frequency range, though this detail might not always be obvious. You may want to check the manufacturer's specifications for precise information.

S
Sebluigi
Senior Member
727
09-10-2025, 04:22 AM
#4
Occasionally, network drivers deploy programs that restrict performance. The Killer network is known for doing this.
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Sebluigi
09-10-2025, 04:22 AM #4

Occasionally, network drivers deploy programs that restrict performance. The Killer network is known for doing this.

M
MrsCreater
Junior Member
6
09-10-2025, 04:22 AM
#5
The antennas are securely installed on both devices, but I've tested every setting. Changing the antennas or using one card at a time doesn't help. During speed tests via Google, I encounter slow performance in Texas with downloads taking ages. With Ookla tests, it's consistently around 60. This confirms the issue is consistent across different networks.
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MrsCreater
09-10-2025, 04:22 AM #5

The antennas are securely installed on both devices, but I've tested every setting. Changing the antennas or using one card at a time doesn't help. During speed tests via Google, I encounter slow performance in Texas with downloads taking ages. With Ookla tests, it's consistently around 60. This confirms the issue is consistent across different networks.

F
FlowerKing2k16
Junior Member
12
09-10-2025, 04:22 AM
#6
It might be a DNS issue, consider using static DNS settings.
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FlowerKing2k16
09-10-2025, 04:22 AM #6

It might be a DNS issue, consider using static DNS settings.

M
MR_Snorlax231
Member
64
09-10-2025, 04:22 AM
#7
Use a Wi-Fi analyzer to verify your card is actually receiving the AP signals. 2.1.6 remains free; try this link: https://inssider.en.softonic.com/ A signal strength between -70dB to -90dB will likely be unusable. If you're within 10 feet, expect around -20dB to -40dB. At closer range but with weak reception, the issue probably lies with your card's radios.
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MR_Snorlax231
09-10-2025, 04:22 AM #7

Use a Wi-Fi analyzer to verify your card is actually receiving the AP signals. 2.1.6 remains free; try this link: https://inssider.en.softonic.com/ A signal strength between -70dB to -90dB will likely be unusable. If you're within 10 feet, expect around -20dB to -40dB. At closer range but with weak reception, the issue probably lies with your card's radios.

W
Wandyyb
Junior Member
10
09-10-2025, 04:22 AM
#8
If you're experiencing uneven speeds across the network, it may not be a local problem. Consider using jperf to test performance between devices on your system: https://turbofuture.com/computers/How-to...sing-JPerf
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Wandyyb
09-10-2025, 04:22 AM #8

If you're experiencing uneven speeds across the network, it may not be a local problem. Consider using jperf to test performance between devices on your system: https://turbofuture.com/computers/How-to...sing-JPerf

L
LouisPizarro
Member
63
09-10-2025, 04:22 AM
#9
This is a very valid question thats pushing my technical know how. It could definitely be a potential fix, just not sure how/where i can see the bandwith
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LouisPizarro
09-10-2025, 04:22 AM #9

This is a very valid question thats pushing my technical know how. It could definitely be a potential fix, just not sure how/where i can see the bandwith

M
Madthunder2t3
Member
195
09-10-2025, 04:22 AM
#10
Three days ago I experienced similar issues, using a different PC. My internet speed dropped to 150 Mbps suddenly. It wasn’t a gradual decline—no changes were made to networking settings, and I was still using the same Wi-Fi card as before. Spending roughly nine hours between devices helped me notice this slowdown.
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Madthunder2t3
09-10-2025, 04:22 AM #10

Three days ago I experienced similar issues, using a different PC. My internet speed dropped to 150 Mbps suddenly. It wasn’t a gradual decline—no changes were made to networking settings, and I was still using the same Wi-Fi card as before. Spending roughly nine hours between devices helped me notice this slowdown.

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