Slow WiFi on Laptop fast on other devices

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Slow WiFi on Laptop fast on other devices

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Slow WiFi on Laptop fast on other devices
Slow WiFi on Laptop fast on other devices
2018-02-17 08:15:45
Model :

Hardware Version :

Firmware Version :

ISP :

Hello, I bought new WiFi adapter- TP- Link AC 1750 Wireless Dual Band Gigabit Router
Archer C7. Internet speed is going really slow on my HP laptop but fast on other devices like phones other laptops and TV. I check it here: http://www.speedtest.net/

I tried literally everything.. My router location is not near any other device. I reset DNS, I use latest drivers I changed my Broadcom driver to his previous version but there was no effect so I updated it. I reset my router and laptop to their factory. I use 11th channel, 40 mHz width (I tried on 20 and auto also), my mode is 802.11 b/g/n mixed (tried g/n and n only). My Broadcom properties: bandwidth capability is 11b/g:20/40MHz (tried on 20 only also), IBSS Mode is 802.11b/g/n Auto, XPress (TM) Technology is enabled. Power Management: Allow the computer to turn off this device to save mode is not set. I called TP- Link support and they connected to my laptop through Team Viewer and checked my setting and my WiFi was slowing down again. When I disconnect it from the laptop and connect to it again the wifi is perfect for couple seconds and then it's slow. It is 0,5-2 Mbps. I didn't have that problem on my old adapter. I use 2.4 Ghz on this laptop. I checked the speed from my other devices on 2.4 Ghz also.

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http://www.speedtest.net/result/7064783112 -fast
http://www.speedtest.net/result/7064794255 -slow (I haven't changed anything, this is just now, 5 minutes interval between the first and second test)

HP ENVY 15 Notebook PC
OS: Windows 10 Home 64-bit
Microprocessor: Intel(R) Core(TM) i7-4720HQ CPU @ 2.60GHz
System memory: 8GB
Video:
Intel(R) HD Graphics 4600
Graphic memory: 2,161 MB
When I go to Device Manager it shows:
Broadcom BCM43142 802.11 bgn Wi- Fi Adapter
Realtek Pcle GBE Family Controller
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Re:Slow WiFi on Laptop fast on other devices
2018-03-16 18:02:02
Maybe it's not compatible? Do you get any advice/solution from tplink support?
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