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Not able to establish a stable wireless connection between m

Hello everyone,

I will try to explain my problem as best as I can. I'm connected to internet via USB adapter on my PC. A few days ago I received a new router from Telecom Speedport Smart (and a new contract for - 100 Mbps) and before that I upgraded my 10 years old Belkin USB adapter f6d4050 v1 to a new Edimax AC 1750 adapter so I can handle the new speeds. At first my connection was normal and then after an hour or two of using the internet my connection would just become so slow I couldn't open a single web site. I had to reset my router and PC to make it work again but this fix never lasted. The problem repeated itself every day. My PC shows that I am normally connected and all the lamps on the router seem fine. I don't get any errors.
The wireless connection on other devices works perfectly, I even tried connecting my PC to my router with a cable and it worked just fine. I also tried resetting all network settings and reinstalling the drivers but that didn't work.
I also have to point out that my Edimax USB adapter worked just fine with the old router Fritz!Box 7312 (16 Mbps speed contract).
At the moment I'm testing how my new router works with my old Belkin USB adapter that only handles 50 Mbps but everything seems good so far...
Oh and Telecom did run some test, my wiring and router are working as intended.

I assume the problem lies with my new adapter or some settings but I'm not able to diagnose the the problem.
If you need any other information I will be happy to provide it. Any suggestions how to fix this problem are appreciated!

My system:

New router - Telekom Speedport Smart 4029491802/J9
Old Router - FRITZ!Box 7312
Most of the time there is one laptop (Asus K555), and 2 cell phones (Galaxy S7) connected to my router but I didn't notice a difference having those devices connected or not connected
New USB Adapter - Edimax AC 1750 Dual-Band
Old USB Adapter - Belkin f6d4050 v1

OS - Windows 10 Pro, Version: 10.0.16299 Build 16299
Motherboard: Gigabyte 970A-UD3P

Thank you

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Clarification Request
So you found out....

In reply to: Not able to establish a stable wireless connection between m

"At the moment I'm testing how my new router works with my old Belkin USB adapter that only handles 50 Mbps but everything seems good so far..."

Doesn't this tell you your new adapter is the issue? Try another make or model.

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In reply to: So you found out....

Thanks for your reply. You are right. The only reason why I didn't do that til now is that my new USB adapter worked flawlessly with my old router. I thought if it has to do with some settings I would be able to fix it.

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I left out something. Did you?

In reply to: Thanks!

Did you try their latest driver for the WiFi dongle?

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In reply to: I left out something. Did you?

Of course, that is one of the first things I did. I went to edimax website and downloaded the newest drivers.

Today I've noticed that the speed on my laptop drops to under 20 mbps but it is still enough to work normally. Now I'm not sure if it has something to do with my router, provider or my USB adapter.

Guys at telecom keep telling me that everything is alright at their end but I'm still having the same problem every day.

Does anybody have any ideas what it might be?

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Some truth about things working together.

In reply to: Yes

Not all devices work together. Sometimes I can help things along by tinkering with 802.11 settings but these are often to limit the 802.11 mode to say 150 megabits so the router and dongle don't try the higher rates. 20 is a tad low but edimax isn't what I call high end gear.

It's OK gear but usually I see their nano or small dongle and it's only good for use in the same room as the router.

Post was last edited on January 22, 2018 9:23 AM PST

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