Network / Sharing :: Wireless Adapter Reduced Speeds?

May 24, 2014

Laptop - Acer Aspire V5-552G-X414
Router - Asus RT-N56U
Modem - Arris DG860
Wifi Adapter - Atheros AR5BWB222

ISP - Time Warner Cable, 20/2 Mbps
Devices Connected - 2 Iphones, 1 Kindle Fire, 1 PS4, 1 Desktop, 1 Laptop

No Error Messages

Problem: Laptop won't connect at full speed UNLESS I uninstall driver and reinstall. Then it will connect at 20Mbps until I close the lid or restart the computer (I think, not sure on when it slows back down). It slows down to what looks to be 3-4Mbps every single time. It shows no error message and no reason as to why it slows down that I can tell. Device manager shows no problems. Desktop is also ran on wireless through a different adapter and never loses speed, so I'm fairly certain its an adapter or windows problem with the laptop. I've tried original driver and updated to most recent driver and still does this. I've turned off automatic update of driver in Windows 8.1 also.

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After a while when i'm browsing the web etc, my wireless connection goes to Limited and there are no other wireless networks available (when there should be 10+ networks).

When i disconnect that limited connection, there are suddenly no networks found and my wireless adapter disables itself and i can't re-enable it anymore. The only thing to restart my computer.

This occures after a couple of minutes. I had this problem before, but then it fixed itself for a couple of weeks and now i have the same problem again.

I've tried reinstalling my drivers, but doesn't do the trick..

I have an Asus N76VM laptop running Windows 8.1 Pro 64 Bit with a Intel(R) Centrino(R) Wireless-N 2230 adapter.

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I took this screenshot AFTER I did OneKey Recovery (which is a factory reset). It set my computer back to the original settings: Windows 8, full of bloatware, etc. I did this reset last night, updated it, updated it to Windows 8.1, updated Windows 8.1, and finally, before I went to bed, tested the LAN. It worked, I was able to connect to my Dad's Minecraft world. So I set my laptop to start re-downloading my games (reset deleted all my data), and when I opened it up this morning to play Minecraft with my family, the LAN was not working again. I couldn't connect (or even find) the lan games.

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This is the troubleshooting I've have done so far.

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I thought it was a connection problem so i restarted my connection, browsing was fine everything except downloading seemed okay.

I tried doing the same things with different browsers like firefox or internet explorer but the problem was same.

When i tried utorrent, it was perfectly normal, it gave the usual download speed of 60-70 kbytes/s so it seems the problem was onl in downloading with browsers and no problem with browsing and utorrent. I hard resetted my pc and reinstalled fresh copy of win 8.1 but again twas the same.did it 3 times already but no change. I dunno if it is a virus or something but i am exhausted, ( before formatting my pc , i backed up my files in an external hdd so it may be possible that if there is a virus involved then it may have came back due to my external hdd)

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[URL]

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But since installing the updates, this returns the following error message:

Failed to configure the DHCP service. The interface may be disconnected.The system cannot find the file specified.

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Idx Met MTU State Name
--- ---------- ---------- ------------ ---------------------------
1 50 4294967295 connected Loopback Pseudo-Interface 1
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Attached are my SF diagnostics tool logs.

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