My Laptop Drastically Loses Download Speed When Wireless

Mar 11, 2012

When my laptop is plugged into the router via ethernet cord I get about 40 mbps of download speed but when it is wireless I get to about 5 mbps. Why is there such a drastic change in the speed? I understand a wired connection would be better, but I don't see how it would make THAT much of a difference. I currently have Comcast XFINITY so I don't think it's my ISP.

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Linksys Wireless Router :: WRT160N Download Speed Degrading Drastically

Feb 3, 2012

I have a 30Mbps download speed when plugged directly into my modem.
 
When I go from modem to router and then directly plugged into computer (using ethernet) it degrades to 15 Mbps.
 
When I swith to wireless and I step about 20 feet from router my speed degrades down to 0.57 Mbps with full signal strength.
 
My version of firmware is 1.2.11. Here are my settings:MTU = 50Beacon = 50

Fragment Threshold = 2304

RTS = 2304

Radio Band = 20 GHZ channel

Standard Channel = set to 11

Network mode is mixed.
 
Security is a WPA2 / AES
 
What's wrong with this router that my download speed is degrading so much?

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Jan 7, 2011

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why is it that one computer gets full speed via wifi when the 2 XP computers do not? It really seems like the speed has a cap at 6.35mb/s download, never goes higher on the speed test.Currently using a Linksys WRT160N Router.When I check the DHCP Client Table it shows that all computers are connected via Wireless-G so it's not a connection type.Is there a specific setting on the XP computers that are capping speed?

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Using my Acer Aspire 5750 at school my wireless connection speed will drop from around 4 Mbps to .30 Mbps. The speed will start out fine from startup and degrade over time. This happens only at school, and only on this laptop using this wireless card. My home network hold its 3Mbps down just fine. My campus has two wireless networks, one is WPA enterprise encrypted and one is open, both exhibit this behavior. Using my network credentials on another machine or using a different wireless card this machine works fine.I've updated to the latest driver and rolled back to previous ones.

This is happening on a fresh install of Windows and on Ubuntu live CD so it is not malware or something along those lines. Spoofing a different MAC address does not change this behavior. The devid is PCIVEN_14E4&DEV_4358&SUBSYS_E040105B&REV_00

It is a Broadcom Wireless N...

What could be causing this problem? Does the NIC not like the access points or vice verse? Are they any settings I should tweak? The drop in speed happens no more than 10 minutes after boot and occurs in both Windows and Ubuntu. I should add that other students don't have this issue so it is not a network wide thing. Other students get around 4mbps down continuously. Using somebody elses credentials on this machine doesn't work either.

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I have had my WRT310n for at least a year now.  When I first started using it, my broadband speed would drop after a while till it was sometimes under 1mb.  I have Charter high speed.  I checked around here and found that heat may have been an issue so I got it propped up so I had some airflow under it even though it didn't feel hot when checking.  I also updated the firmware then and for a long time it seemed to have cured the issue.  Lately though, the problem is back.  I updated firmware again but still no change.  The unit is cool to the touch so heat is not the problem.  After turning off for a bit and then rebooting, the speed goes back to normal and stays that way for a few days.  I also tried rebooting my cable modem to test that aspect but after doing that, no change.  Just rebooting the router fixes things.  I'm at a loss.  I can't keep having this happen especially since my wife works remotely from home.

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The problem is the worst at a distance (one floor down in our house, maybe 30 feet away in total) where the signal strength may start at "good" and a speed of perhaps 30 Mps, but then after 3-4 minutes drops to "poor" and maybe 5 Mps.

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Mar 17, 2011

I live in the tampa bay area, I have bright house (BHN) as my service provider, which provides a Road Runner Lightning (40/5) package.  I previously used BHN's top tier (20/2) back in July (and prior) with no problems.

After converting to Lightning in August of this year (2010).  Of course, BHN (and every other provider) wants to force a modem/router down your throat, so I had them bridge it (in short, turn it into a dummy modem with no routing). I had an SMC branded modem gateway at the time.  I work from home 2 days a week (so I can spend more time with my kids during morning, lunch, right after work) and this requires me to use QoS to ensure my VOIP work calls don't get dropped, if the family is watching youtube videos or watching netflex. 

My network was as follows SMC Modem >WAN IP>>WAN Port>>D-link DIR-655>>Switch Ports>PC1, PC2, PC3

Everything seemed fine (from a usability stand point) till about 2 weeks ago when my upload speed seemed to grind to halt.  Normally I was able to upload about 200-300K per second, and I noticed this dropped to about 45K per second during a drop box upload.   First thing I did was power cycle both my modem and router (in the proper/usual order).  After they both come up, I start using speed test to find out what my upload speeds were.  I was getting about 39Mbps down, but only .56Mbps up still.  I factory reset my router.... test, similar speeds.  Power cycle all computers (just in case), and then modem/router.  Tested, similar speeds.   Updated the firmware to the latest. Same issue

Called BHN customer service, they factor reset it, but it wasn't in bridge mode.  If I by passed the 655, in factory mode (non bridge mode) upload speeds returned to better than expected states.  If I bridged the cable modem, upload speeds seemed to crash.

Had BHN replace the modem, seemed fixed for a day, then issue came back.  Had them come back out and replace it again, this time with a Motorolla Surfboard modem... same issue.  Fine during factory reset, however after they bridge the modem, upload speeds were fine.  Told BHN I would take it from there.. Connected up the DIR-655, and upload speeds crashed again. (.6Mbps).  Called D-Link Support, and the Chinese English speaking rep seemed to not be listening to me and tried to have me adjust my MTU as well as Wireless settings.  Long story short... the rep was a level 0 id10t and I hope D-link will consider hiring better employees/contractors.  So I was all about to give up and replace it with a DD-WRT capable router (which it takes me a lot to want to swap hardware), when I discovered the wan shaping was on.  Which I thought to myself... nah... QoS has never messed up before... why would it be the cause.  Turned off wan shapping... and voila.  Issue seemed to be insta-resolved.

Unsatisfied with that... I decided to dig a lil deeper. I turned on Wan shaping again, but decided to set the settings manually instead of auto detect.   

Here are the settings I used... (Advanced Tab>QoS)
Enable Traffic Shaping - Checked
Automatic Uplink Speed - Unchecked
Manual Uplink Speed - 5000
Connection Type: Cable or Other Broadand Network

Enable QoS Engine - Checked Automatic Classification - unchecked (this checked seemed to affect my upload speed by about 5-10% during testing) Dynamic Fragmentation - unchecked (this checked seemed to be the worse enemy for upload speed)

While I know I'm not any network guru (still have to use a subnet calculator for subnetting), I think I did a pretty good job drilling down the issue (once I got passed my service provider replacing modems).

Anyways, I've had overall good luck with D-Link products, even have a 5 port 10/100 switch (all metal) from 1998 that works great.  Hopefully, D-Link will just either put more documentation on the web, or hire better employees.

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Jul 31, 2011

Our entire office runs on wireless connections (laptops, printers, desktops, etc) and we have little to no connectivity issues considering. However, we just purchased a new dell laptop. the laptop connected but within 5 seconds immediate loses the connection and reconnects, disconnects, etc.. This is continuous. All other devices, 2 other never-before connected laptops and a tablet have all sucessfully connected without issues...only this new dell laptop does it. The laptop connects and stays connected to all other wifi connections we have tried it with (other corporate wifi and home wifi's). Dell has replaced the wireless card to confirm there was not issue with that (which I was confident there wasn't). Our IT contact suggests buying a new $500 router, but that is a little hard for me to accept seeing that only 1 device is having difficulties (his other reason for this was his concern that he couldn't access something like the router's management tool, or something like that). New Laptop is running W7 OS..

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Jun 5, 2012

Recently I bought a new router, the Linksys E1550, along with a new computer, an ASUS K53S.Both performed especially well for the first week I had them, along with the wireless on my old desktop computer, but now internet connection speeds slow down to a snail like pace after an hour or two.Normally I would've put it off as bandwidth being taken up by other processes, but as a relatively avid gamer I would notice my ping shooting up to 400-900 ms, which used to be around 60 ms.

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Nov 17, 2012

I have a WRT160 V2 router with firmware  v2.0.02. I have had the router for years without any problems. A few months ago I have started to see an issue where I lose connection to my internet on my laptop, and wifi on my phone at the same time. I have wifi calling on my phone and it disconnects also at the same time. All of a sudden, everything will stop working, then about 40 seconds later, it all works again. I lost the connection maybe every 30 to 60 mins. I rely on wifi calling for my primary phone, and I end up getting cut off when talking to people. BTW wifi calling is for all tmobile phones, but also normal wifi to surf the web on my laptop and phone drops too at the same time.

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I have a new EA3500 router that's working great for a variety of devices* except a Windows7 laptop.  24 hours after establishing a connection, the laptop loses connectivity and it's very difficult to re-establish a connection.  Usually I have to reboot the router, but 24 hours later the problem returns and Windows is unable to connect. 
 
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Dec 30, 2011

I am getting very slow download speeds on my wireless router (Linksys model#WRT160N). I measured it on speedtest.net. with my ASUS laptop, ASUS Transformer Prime tablet, and 2 Ipod touches. All similar speeds.

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I measured my desktop speed that is hardwired through the router to the modem.

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I have scanned all the wireless connection in my area and found them to occupy channels 1, 6, 11. I tried changing my channels one at a time for all 11 channels. Some did a little better than others but not a lot. Also, if I buy a dual channel router, can all wireless devices pick up on the 5GHz spectrim and if so, could this alleviate some interference? Is it possible that my router is going bad and a new single channel 2.4 GHz router will be fine? jasonmac73 has chosen the best answer to his/her question.Click here to view the answer that was selected.

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ISP :

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Oct 10, 2011

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Running Windows 7, Kaspersky, Shaw is my ISP.
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 MicrosoftCorporation. All rights reserved.
C:UsersLee Fedyk>ipconfig/all

[code]....

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