Cisco :: 4400 / 1142n LWAPs - Slow Wireless Speed
Jan 23, 2011
Background: Cisco 4400 series WCS w/ Cisco 1142n LWAPs. Clients are HP Elitebook 2730p notebooks with Intel 5100 wifi chips.I was installing Dragon Dictate on several users tablets this weekend. I was ready for the 1 hour install. I noticed that one of the computers was done far quicker than I expected. The computer had a wired ethernet cable attached to it's docking station. The other 3 were accessing the network via the wireless. I did some checking on the WCS, and the other three notebooks were downloading files at a whopping 8 Mbps each. The server that they were. downloading from is attached via gigabit ethernet, and was little utilized. All three notebooks reported that they were connected ~80Mbps to our 2.4GHz N network. I'm willing to accept that wireless is going to be slower than wired, but this seems extreme. The three tablets were connected back to the same LWAP, which is connected to a gigabit switch. There were only three other people in the building at this time, so network congestion isn't an issue.
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Apr 30, 2013
I have two SSID's configured and I want them both on G and N but it looks like the speed is some way limited to 54mbps. I guess the encryption is not the problem as it's ciphers aes-ccm which support higher N-speeds.
my running config attached, that should be lovely as 54mpbs is too slow
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Aug 20, 2012
Just got Cisco AIR 1142N, configured it with two ssids on 2.4 Mhz interface. 5.0 is shutdown. As I know (probably I am wrong) wireless speed with "n" mode devices must be at least 150 Mbps, but I get only half of that- 72 Mbps. Where could be a problem?Tested it with notebooks with Broadcom 4313 adapter. I have read some people face problem with 54 Mbps speed, but they just have wrong authentication.
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Nov 6, 2011
I have a Arris DLS with 12 Mbps Download and when I Connect my laptop directly I get the same speed as 12 Mbps but when I do the speed test with my linksys I get only 5 Mbps. How to upgrade to the new WRT54GL or WRT54GS?
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Jan 11, 2011
Recently my desktop has experienced very slow download speeds (~0.11 Mbps), however the upload speed appears to be in line (~2.0Mbps). These numbers are taken from Comcast's speed test (my ISP). It is obviously a problem with my PC because everything else on the network (PS3, Laptop) have great signals with no problems. I just recently reverted the Desktop back to its factory state, and everything was working fine for a couple of months. The desktop in question uses Vista 32-bit and the Belkin Basic USB Wireless Adapter.
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Apr 3, 2012
I have 2 APs, Cisco Aironet 1040, and 2504 WLC.Is it possible to configure guest access (Guest SSID/VLAN and Corporative SSID/VLAN) without dedicated guest WLC in DMZ?
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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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May 2, 2011
I have three 5508 WLCs, running code 7.0.98.0 supporting 100+ LWAPs in H-REAP mode. The LWAPs are servicing 2-3 WLANs each. Some are using central authentication and local switching, some are configured for central authentication and central switching. When the LWAPs fail from one WLC to another WLC, the LWAP's lose all of their VLAN mappings and pick up the VLAN of the management interface on the new WLC.
All WLANs are configured to use the management interface on the WLC and the VLAN mappings are configured per LWAP on the H-REAP properties tab. The WLAN ID numbers and all the WLAN settings are the same across all 3 WLC's. I have created AP groups on all 3 WLC's and the AP group config matches across the 3 WLCs.
I can get the LWAPs to keep their VLAN mapping by creating an interface on the WLC with the VLAN ID of the locally switched/remote site VLAN and then setting the interface for the WLAN to the new interface. However, then the WLAN doesn't work, because the centrally located WLC doesn't have the remote site VLAN. It also seems to keep the VLAN mapping if I create the locally switched/remote site VLAN interface on the WLC , and point the WLAN to the management interface. This shouldn't be a necessary step though... In H-REAP with local switching, the LWAPs aren't using the interface on the WLC.
I found a note in the 7.0 WLC config guide that explains why the VLANs are picking up the management interface VLAN, but that same note says the VLAN mappings can be changed per LWAP/WLAN!
From config guide: For hybrid-REAP access points, the interface mapping at the controller for WLANs that is configured for H-REAP Local Switching is inherited at the access point as the default VLAN tagging. This mapping can be easily changed per SSID, per hybrid-REAP access point
Using H-REAP and been able to get the LWAPs to keep the VLAN mapping when failing from one WLC to another?
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Jul 11, 2012
I rencently built a computer with a friend. The wireless card I had was fast but began to slow down, went from 12 mbps to just under 1. I switched cards because I figured maybe the card was bad. I now have a netis WF 2113 PCIe card. My mom in the room with the router gets 20-30 mbps while I still get <1 to 1 mbps. I've updated the drivers and looked through the net to find a solution, but to no avail.
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Feb 27, 2011
I'm new to the Cisco WLCs and recently implemented a wireless infrastructure using a WLC 2100 with 1262 LWAPs. I have two of the 1262s plugged into ports 7/8 using crossover cables. They're functioning correctly with the exception of the inability SSH and send pings to the LWAPs behind the WLC. Is there anyway to ping/shh through the WLCs to the LWAPs behind it? I use an NMS (Nagios) to monitor the status of the LWAPs and it can't monitor them if it cannot ping them. Also, is there anyway to configure the WLC to monitor the status of LWAPs?
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Jan 31, 2013
I currently had 6 WAP321 setup in our work environment on 2 floor building as Single Point Setup cluster. When I do a 470MB ISO files transfer between the server and the laptop, the speed is very slow, rate at 130KBs and sometime it go up to 30Mbps.Is there anyway to tweek teh WAP to get FULL speed of wireless all the time?
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Feb 18, 2012
I need to know what is wrong I am on a wireless 3G network with .8Mb speed test but I have very low download speeds. Tech Support Guy System Info Utility version 1.0.0.2 OS Version: Microsoft Windows XP Home Edition, Service Pack 3, 32 bit Processor: Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz, x86 Family 6 Model 15 Stepping 11 Processor Count: 2 RAM: 3325 Mb Graphics Card: ATI Radeon HD 2400 XT, 256 Mb Hard Drives: C: Total - 286134 MB, Free - 237445 MB; Motherboard: Dell Inc., 0GM819 Antivirus: avast! Antivirus, Updated: Yes, On-Demand Scanner: Enabled
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Feb 22, 2013
ISP provides us with 20 mb/s download speed. Both Toshiba laptops used to be able to attain this but after reinstalling windows xp on this laptop, it can only achieve 8mb/s. The other laptop will get 20 mb/s whether connected wired or wireless. For the life of me cannot figure what has changed. I have installed all windows updates including SP3 and updated all drivers via Toshiba website. It uses the Intel 3945b/g network card and the router is a motorola sbg 6580.Connecting wired will achieve 20mb/s so it has something to do with the wireless setup.Have tried connecting to router with WPA, WPA2, and no encryption but makes no difference.Testing right beside the router or 30ft away makes no difference.Have uninstalled/reinstalled network card but made no difference
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Mar 20, 2011
Just bought a new DIR-655 Xtreme N Gigabit Router 3 days ago. Have 5MB fiber and consistently receive 4.7-5.0MB when connected directly to my laptop (windows XP, Dell wireless 1390 WLAN Mini-card, 802.11g only). I followed the CD instruction to set up the router and when connected wirelessly I consistently get 2.4 - 2.7 MB. When I connect a cable from the router to my laptop, I get the 4.7 - 5.0MB that I get when connected directly. I've tried a second laptop (Vista, 802.11g only) and when connected wirelessly I get 4.7-5.0 MB. A friend of mine who has a laptop (Windows 7, g/n) also connected at 4.7-5.0 MB.
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Dec 25, 2011
I am using a DIR 825 and I experience slow data transfer speed within my internal network under the wireless connection (2.4 Ghz), 2 Mbs. I can videostream from the internet OK, no problems there, but when I want to transfer data between two external HDD (NAS devices) it can get as slow as 2 Mbs.
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Feb 26, 2011
I have brand new Cisco E4200 and WD Passport 500Gb.When it connected to router wireless (802.11n 300Mbit/sec) file transfer speed is around terrible 3 MB/sec. Same hard drive directly connected to my Mac Book Pro Unibody produce 30MB/sec. However my internet connection thru the router fairly shows 12MB/sec.It sounds funny, but for me is 4 times faster to download file from the Web rather the from hard dive that I'm holding in my hand.
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Feb 25, 2011
I have FiOS and their supplied wireless router Actiontec #MI424WR. I have home theater equipment that uses the newer N signal so I purchased a Linksys E3000 Wireless-N Router. I have one of the LAN outputs on the Actiontec feeding the Linksys input and Wi-Fi turned off on the Actiontec. This is working good for my wireless home theater equipment but I am having problems with my wired speed. It has gone from averaging anywhere from 20 to 30 mbps on numerous test sites when plugged into the Actiontec to averaging around 10 mbps when plugged into the Linksys.
1) Is my wireless N speed going to top out at 10mbps or less since that is all the router is showing on wired? Shouldn�t N be broadcasting a faster speed if given the ability?
2) I have my computer currently plugged directly into the Linksys verses the Actiontec. This makes it easier to program the Linksys router. Since I am no longer using the wireless part of the Actiontec there really is no need to be plugged into it. Is there anything I can do get the speed higher on the Linksys, a setting I can change? Will I have to plug the computer back into the Actiontec to get the higher speed and then move it every time I may need to make a change to the Linksys?
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Dec 4, 2011
I recently bought a new TP-Link TL-WR741N, I'm transferring data from my desktop wired network, windows 7 to net book windows xp wireless. i'm getting only 2 mbps.
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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.
-Download avg: 1.30 Mbps
-upload avg: 6.20 Mbps
I measured my desktop speed that is hardwired through the router to the modem.
-Download avg: 30.00 Mbps
-upload ave: 6.20 Mbps
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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Aug 26, 2011
I get 17 mbs download on one wireless laptop, only 7 mbs on the other wireless laptop. What should I look for to fix the slow laptop.The slow laptop is 8 feet from router with drywall wall between, the faster is 25 feet, no wall between computer and router.
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Apr 10, 2013
I bought the new E2500 Router about 5 months ago and it was great until one day the wilreless part would not give me any speed at all. I ran a wired test of the router and I would get full 30Mbps speed that I'm supposed to get. So after firmware updates and everything else I took it back and got another one.It has worked great for a month and today it's now doing the same wilress slow down issue. I can run a lan connected test and get full speed. But wireless is bouncing around at 5Mbps~13Mbps. No where near the 30Mbps I'm supposed to be getting. What is causing the wireless to bomb like this?
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Feb 27, 2011
I'm having issues with the wireless speed of my WAG160N. I'm using WPA2/AES, firmware: V2.00.20. The wireless connection signal is very good and the speed shows 130 Mbit/s.
On a wired connection when testing with numion.com I get 6 Mbit/s which is my DSL speed (this is great). On the wireless connection I get max 1,8 Mbit.
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Dec 6, 2011
I have a problem with new E4200 WAN speed. I have 1Gb connection from my ISP, and my old Netgear router gives me about 350 Mbps WAN speed, but with new E4200 I only got 110 Mbps max download speed.Cisco live support tried suggested to change MTU from Auto to 1400 (and try different wlan channels, even that I don't use wlan). This MTU size change makes no difference with WAN speed. I have latest firmaware installed, router reseted several times, tried different cables etc. Also with same cable sets my old Netgear still gives about 3 times better WAN speed.WAN port (and all LAN ports) seems to negotiated at 1000 Mbps at both ONT (optical network terminal) and Linksys settings page, but unfortanately there is no way to change the setting from auto to manual at E4200 settings (and it is not possible to change any settings of ONT by user). I was thinking that if somehow it won't auto negotiate properly (even if the setting page says its ok) but maybe it actually negotiated 100 Mbps port to WAN.
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Oct 21, 2011
I just purchased an e1200 wireless router. Wireless speeds seem to be very slow. I'm trying to transfer 1 file to my media server, and am only getting 221kb/s. Also, internet connection seems to be slow as well (though if I plug directly into the router or the modem, I get speeds of 25Mbps, however when connecting wirelessly via the router I get speeds closer to 2Mbps (according to speedtest.com).I've played around with the settings as per other posts, and seemed to get the best speeds with the following config (however it is still very poor):
- security mode: WPA2 Personal
- network mode: B/G (have also tried N, which gave worse speeds)
- channels 1,3,6,9, and 11
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Jan 2, 2013
I am using WRT54G linksys router. When connwcted through the router my download speed is very slow(~700K). If i plug in the LAN calble directly to my laptop the speed is ~4M
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Jan 25, 2013
I bought a EA 3500 router and my speed is going only half the speed it was without the router.I have charter 100 meg internet, and a alienware Pc with a gigabit card.I wa going 100 megs and now I am at 38-50.I have tried hard reset with the bottom button, I have turned off all firewalls, I have changed my MTU to 1400 and 1500, I have went to speedguide.net and ran a optimizer., I have tried just about everything I can think of. firmware is up to date.
Is there anything I am missing, or am I not going to get these speeds with this router, I was told when I bought it, it was what I needed, Was I duped?, or is there just some setting i need to fix i am not aware of?
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Apr 23, 2013
I purchased a Belkin N-300 router, model F9K1002V4, about 6 months ago, and recently upgraded my cable internet service to a 20+ mbps level, in hopes of improving the speed of my wireless devices. The speed on all of my wireless devices (a new laptop, ipad, and iphone) is still below 1mbps, even when I'm in the same room with the router. The speed on my wired computer registers above 20mbps, so I don't think the problem lies with the cable internet. I have tried to download the firmware update on Belkin's site, but my computer says it doesn't have the right program to run it, and it can't find the program on the web. I sent an e-mail to Belkin customer service, but they just sent me an automated reply, referring me back to their website, with the firmware update that I can't access.
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Nov 6, 2011
The smile was big when I bought my new Linksys E2000 Wireless Router.
Unfortunately the smiled stiffened when I realised that the network speed did not meet the expected up to 300 Mbps for Wireless and x10 for a Giganet connection. What to do to improve the LAN speed to an acceptable level ?
Network:
* Linksys E2000 ; WPA2 (Personal)
* x2 Windows7 Laptop ; x1 Linux Laptop ; x1 Qnap TS-409 Pro
* Download speed WiFi (between laptops as well as from NAS) <2MB/Sec
* Download Speed Cable (between laptops as well as from NAS) <8MB/Sec
* Download speed with direct connection to NAS (without switch) ~13 MB/sec
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Dec 14, 2012
Got an XPS 8300 with a 1501 Wireless-N WLAN half-mini card. I'm using a Linksys WRT160n router which can handle up to Draft 802.11n.
When wired directly to router I'm getting ~21-25Mbps. When I go wireless, it's pitiful - down to ~2-4Mbps. We just got a new laptop in the house (a chromebook actually) and the wireless throughput on that is equal to my wired throughput (21-25Mbps).
I'm using WEP security on the router.
What settings to check/modify to get my connection speed up? Everything I checked seems to be OK and the driver version is up-to-date.
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Jan 21, 2013
Just received the above laptop from Dell Outlet. First of all I have a dead pixel right in the middle of the screen - will be taking this up with Dell as its really off putting especially on brand new laptop.My second issue is with wireless - did have problems initially with wireless disconnects and generally slow speeds. Im not entirely sure but removing Mcafee seemed to work with the disconnects at least - load of rubbish imo. Now my only other major issue is with wireless speeds on the 1703 card. I seem to max out at about 45mb on all broadband speed tests - while on another laptop I get the full speeds of 80mb on the same server at the same location.
Im only getting a link speed of 72Mbps in the networking tab of Task Manager and this does seem rather slow - the other laptop gets 450Mbps (better wireless card - to go with my Asus N66U Router)Anyway my thought process is that the 1703 wireless card is not up to much in the inspiron 14z- I understand that the 1703 card is wireless and bluetooth - with I think 1 antenna for bluetooth and one for wireless connected to the wireless card. Now I don't use bluetooth much if at all - so does it make sense to buy just a wireless card and connect the two antennas to the card and therefore losing bluetooth connectivity but gaining better wireless connection??? any wireless card recommendations??I think I have an Intel Centrino WiFi Ultimate N 6300 in the other laptop by the way.
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Jan 24, 2011
Lenovo T61P
Win 7
Wireless Connection (Router Linksys WRT54G2)
I installed Comodo's Firewall and during installation I accepted to install the Secure DNS too. Afterward I noticed my web-pages loaded slower than usual. They weren't extremely slow but definitely slower than what I've been accustomed. I tried some OPENDNS servers and others to see if it made any difference but it didn't. I also went to my router's setup page((http://192.168.1.1/)so I could manually add the previously mentioned DNS servers. I finally decided to revert back to my old DNS list. To disable using the Comodo DNS servers I did the following:Wireless Network Connection Properties-> Internet Protocol Ver 4 (TCP/IPv4)-> Properties -> Select "Obtain DNS server address automatically"I also went into to my router's setup page (http://192.168.1.1/) to set my DNS list to zeros so that I can get back my default ISP's DNS servers (207.69.188.185,186,187). However, website loading is still sluggish.I thought the issue might just be a temporary hiccup from my ISP but my roommate doesn't have these issues. We tried a speed test at dslreports.com and the results were weird. On my laptop the results were 8500+ Kb/s with a 279ms latency. I was 10 ft away from my router.
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Sep 7, 2011
my internet speed is fast but page loads very slow
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Mar 28, 2013
Having a bit of a quandry. I have one laptop, a Toshiba Satellite L500-2H, that seems to get ridiculously slow wireless speeds sometimes. Like, slow to the point of not even being able to load webpages. Or taking way too long to do so. Either it cripples along or can't load outright.sometimes the Toshiba will do exactly what it's supposed to and pull 20 megabits/s on speedtest.net, which is what the others do.
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