Cisco Firewall :: Windows 7 And 871W / WSDM Causing Slow Internet And Downloads
Mar 8, 2011
I have a Cisco 871w that has been a very great product for many years. I recently switched to Windows 7 x64 on my main machine and now i am having all sorts of issues with it.. I have done a bit of research and found that it appears that it might be the firewall on the SDM that is causing the slowness issues. what does happen is that downloads from known good sites will run really slow. If i hook up my Macbook Pro or my Windows XP laptop i have no issues at all. i have tried Disabling IPv6 as well as SMB2.0 and this has not resulted in a fix at this point.
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Jan 25, 2011
i recently done a clean install of windows xp on this laptop after having vista on there for a couple of years and ever since doing this the download speeds have seemed so much slower im not sure weather its got to do with the OS or weather its just the internet has been slow since ive installed it. Im using wireless connection to connect to my router also.
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Mar 21, 2011
I have one customer who is complaining about slow FTP sessions, and timeouts. Depending on the file size, it gets to about 98% down and hangs. The ASA has a CSC SSM-10 on it, and even bypassing FTP through it, the problem occurs. It is running 822-17-k8 OS. Turning the SSM off does not make any difference.
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Jan 3, 2013
decided first of all to connect an old router to the master (but not test) socket together with different cabling & splitter/microfilter - everything starting working almost perfectly (apart from downstream data rate was considerably lower than expected each time I connected - between about 1400 & 1600 Kbps - I have max. 8 Mbps).when I connected back my current router everything continued to be OK (apart from low downstream data rate) - until I would restart the current router and everything went back to very very slow.
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Jun 10, 2011
I have been using my DIR-655 for about 2 weeks now with Road Runner wideband services. Starting yesterday my internet became very slow and I discovered the cause was the router. I tried resetting it to factory settings and things will be fine and run smoothly for about 5-15 minutes but after that it goes back to being extremely slow. My speed tests would go from 10ms (normal) to 250-450ms. Before this issue occurred the Dlink was perfect, had full speeds. I am running a wire Ethernet connection.
I am currently using revB and tried upgrading firmware to 2.01NA which had no effect, but make my internet seemingly go back to normal for the first few minutes then nosedive again.I have also changed my speed/duplex settings in Network Config to 1gbs Full Duplex. I've also disabled QoS, and still no change. Not sure what else to do.
When directly connected to the modem everything seems fine. The modem is also the provided Motorola SBG6580 which I have called Time Warner to set the modem into bridge mode and have the DIR-655 connected to it.
With DIR-655 connected to PC
With Modem connected to PC
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May 4, 2012
I have 2 computers on a network, and 3 devices that use wifi on the same network. Basically when ever computer A is connected, every single computer or device on the network runs extremely slow, if at all. I get anywhere between 1200-2000 ping on pingtest with 2-60% packet loss. Even the speed on the "infected" computer A downloads extremely slow. I'm at a loss for this problem, everything runs slow and its because of the one computer connected to it. I have virus software on this computer, but its not the best so i'm not ruling out malware or viruses right off the bat.
Devices: Blackberry, Iphone, macbook (all wifi)
Computer A
Runs windows xp 32 bit,
amd processor
onboard video
[code].....
The internet modem runs to a router (Dlink dir615) then to a switch (or hub, if you will) and then to the 2 computers. The entire problem is solved by unplugging computer A from the system. But other than that I have no alternative.
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May 11, 2011
This only started about a week ago and everything was working fine before then. My router is causing my internet to be slow (I know this because it goes at normal speed when I am connected directly to my modem)
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Apr 2, 2012
wat driver do i need to get connection via Ethernet connection
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Dec 28, 2012
I used to get speeds that exceeded 2 mb/s and now when i download steam games it fluctuates from 0 kb/s to 2.1 mb/s in an oscillating pattern. What is wrong with my internet? games that should take less than an hour to install now take 3.
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Jul 30, 2011
I ran a speed test with my new DIR-655 connected to my PS3 and my download is 768kbps and my upload is 1.5mbps. However, my internet connection is 50mbps and 2mbps upload on my computer connected via LAN. While I understand SOME decrease, that's slower than the previous Wireless G router that I had.
I've reset the router twice and it's currently set to the factory defaults. I've even tried setting a static ip address for the PS3 and put it into DMZ mode. However, I'm still getting the slow speeds.
Also, my iPhone 4 is getting about 14mbps download and 2mbps upload. Is that expected?
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Aug 22, 2012
I am a new network admin at my company, and I am investigating a problem that is on a network designed by someone no longer here. So, I can't ask why things were set up the way they were. Anyway, here's the issue:
We have 50Mbps WAN connections between locations. The WAN devices are 3750s, but the port plugged into the providers network is a layer 3 port. Config is below for one of the ports: [code]
So, these are Gig ports, but our service provider limits to 50Mbps. When we do a data transfer, we can't exceed about 20Mbps total on the circuit. The data transfers at maximum 15-16Mbps.
I'm not familiar with QoS. I've tried to read more about SRR, but don't understand it well enough to know. Are the QoS settings creating this restriction? Our provider swears that the bandwidth is allocated and its not being choked on their end. I have not taken off the QoS config to test it that way because I'm not 100% sure if its needed and serving some purpose. I don't want to break something in order to fix this.
Is the QoS causing this? Do I need to put a bandwidth statement on the port? Should we be using routers and LLQ?
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Jul 22, 2012
We have had a shift in our work force and find a large number of uses now working from home. Lately (this weekend) they have been complaining about VPN client downloads being very slow. I have tested the IPSec client and the SSL client and compared them to an Internet download on the network using the exact same laptop and the exact same web site www.speednet.net. Here at the office I see 50M, over both VPN's I see (if I am lucky) 1M, all reading within a 15 minute period and all over the same 600M pipe to the Internet
We have never noticed this before this work force shift to home. Eliminating all other factors, which we think we have, would you expect VPN clients to behave this way?
MTU is set at default from day one. The only thing we have done to VPN configuration over the last week was to add a tunnel gateway to the ASA 5540 VPN configuration which is only a hop away from the firewall inside interface.
I will provide configuration data if you request but my question is just a general one at this point. Is this normal and can you make a suggestion as to how we can improve? We are research, running wireshark on the test laptop so as the day progresses we will have more information to provide if needed.
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Feb 15, 2012
I am using virginmedia superhub which is supposed to give me a max of 30mbps. I use it wireless but am often getting fluctuations in speed - sometimes 500kbps upto 20mbps, nothing consistently close over 20mbps or close to 30mbps. I have bought a powerline kit - "develo olan 200 AV Wireless N" which has improved the speed but I still get fluctuations.
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Jun 30, 2011
For some reason, I have been trying to use QOS for several network related jobs (VPN, streaming). It would seem that when QOS is enabled and the appropriate ports are set which a high priority, the speed of my connection drops to a crawl. When I disable QOS, I'm flying again. I have confirmed ports, and protocol types (TCP or UDP) and nothing seems to work.
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Jun 7, 2012
I just built a new computer with most of the bells and whistles. Asus P8Z77-V pro motherboard, Intel I7 3770K CPU, NVIDIA GTX 560TI, SSD for my boot drive, HDD for storage both running on SATA III, 16 GB of RAMMy problem is that when I connect to the internet via an ethernet cord, my download speeds are about 58 MBPS which is fine but upload speeds are only about .3 mbps. I have changed cables 3 times and connected directly to the modem rather than the router which would indicate an ISP issue. The kicker is that when I disable the LAN network and enable my wireless network, I get slower download speeds as expected but my upload speeds are closer to 5 MBPS, more than 10X times faster which throws my ISP theory out the window a bit.
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Nov 26, 2011
the download speed of my downloads has been very slow, and most of the RAR files I download get RAR CRC errors like theseMy desktop has no active firewall on, and is clean from Maleware.What could be the problem with so many bad CRC files being downloaded?
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Dec 9, 2012
I have decent Bandwidth, high download speeds (25.67mbps) low ping(16ms) And okay upload speeds (4.47mbps). I usually browse Reddit and my father usually plays CoD. The problem is, whenever I try and download anything, his game slows down to where he gets kicked from the room.
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May 14, 2013
On certain downloads, Wifi speed seems to be throttled to about 100kB/s. I see this mostly on two BlackBerry Z10s, but also just saw it on my Wifi-connected PC when trying to download the latest DIR-655 firmware. The Z10s are screaming fast on Wifi at my work. They also do fine on YouTube and any other high bandwidth applications (I just tried Speedtest and got 11Mb/s). I think I can say that the slow speed is only when I'm downloading apps or updates on the phones.
I just updated my DIR-655 to the latest FW and have spent an hour flicking settings trying to find something that makes a difference. No luck. As it stands now, I'm downloading the latest OS upgrade to BB10 (345MB) at 100kB/s.
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Dec 18, 2011
I recently switched to cable with Comcast. I am getting 20+Mbps wired, but I only get 1 Mbps w/wireless download. I am getting 4+ upload via wireless. Is my set up wrong? I reset my modem and Internet worked fine without any other changes. I am planning on buying a modem (instead of leasing) should I buy a gateway? I didn't think this router was out dated yet.
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Jul 20, 2011
i have a 4Mbps DSL internet connection with 3 PCs connected through a router. 2 are connected wirelessly and the other is wired via an ethernet cable. i noticed that when downloading a file from an international server, the transfer rate on the wireless PCs is 2-3 times slower than on the wired PC. the wireless PC would get about 150-200kb/s, whereas the wired PC can max out to 450kb/s on a single download. however when i download from a local or nearby server instead, the transfer rate on the wireless and wired PCs are the same and can both reach up to 450kb/s per download. i don't understand why the wireless connection is slower to international servers compared to the wired PC.my wireless signal is at 54Mbps with "excellent" strength. i also tested the ping results from both the wireless and wired PCs to international servers and they are pretty much the same.
- all PCs are running windows XP SP3
- the modem/router is a D-Link 2640B
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Apr 15, 2013
I have an odd problem where http downloads will stop after a few seconds. I can stream video, do anything else with the internet perfectly. It's just when downloading files from websites will this happen.I use a wired connection. I have tried Firefox, Chrome, and IE10, and this problem happens in all of them. I use a WRT54GS router. I have tried downloading files in Ubuntu 12.10, Windows 7 using wireless, and WinXP, and they all can download files perfectly. Only Windows 8 seems to have this problem. Another thing is that my Windows 8 is a fresh install.I have also tried disabling Windows Firewall to no avail.
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Sep 3, 2011
So I just bought and recieved a new computer with the wireless WMP600N.
I turned the computer on and a had small lags every 5th second or so which, even though they are small, are pretty annoying. I then tried to look for a reason as to why this happens and what i found out was that if a turn off the wireless internet connection the lag spikes stops and if I turn it on they occour.
My computers specs are:
I7 2600k 4x 3,40ghz
Nvidia geforce GTX 570
8 gb 1600mhz RAM
WMP600N wireless-N PCI
Windows 7 64xbit
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Jul 29, 2012
I updated my Mac to OSX 10.8 and now every time I try to login to my work network (a windows network) it locks my account. Each time, my sysadmin unlocks my account and I am able to successfully login one time but then, if I login again (after restart or sleep) I am locked out.
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Jul 26, 2012
I decided to upgrade my OS from Win 7 Pro 32 bit to Ultimate 64 bit because i needed more RAM ( I have 4 GB RAM but only 3.5 of it was usable. I want all of the 4 GB because I am getting BF3 soon) and for my new graphics card (GTX 550ti) so i formatted my Hard Drive after backing everything up on an external Hard Drive. Everything went smoothly until I had to browse the internet. Internet works, but it is very slow. It was working as normal when I had the 32 bit OS. Download Speeds are 8 kbps. I tried using the netsh int tcp set global autotuning=disabled in command prompt but no result. I tried removing and Re-inserting my Wi-fi adapter, no result. I don't want to be forced to downgrade to a 32 bit OS again . I am at a loss here and really want my fast internet back. [code] My Internet Connection is 4MB. My router is a Linksys Wireless-N Router and the Modem is provided by my ISP. The signal strength from the position of my PC is decent but internet is VERY SLOW!
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Jan 15, 2013
I have a cisco 871w router that I'm trying to incorporate into an existing network. I have FastEthernet4 (WAN port) plugged into an ISP device, which I don't have access to. I have the address set to use dhcp, which is successfully recognized and I see that the interface gets a valid ip address that I can ping with other computers on the same network.
Problems: I am logged into the router via the serial port and I cannot ping websites on the internet. I am able to ping sites that are hosted inside the WAN, but when I try "google.com" for instance, I see it sending out packets, but none are received. It resolves the hostname from the local DNS server, but there are no packets received.
I type into the console to set up the router. I'm missing a lot of stuff. This is what I've been able to piece together using google and the software manuals:
enable
config t
hostname [hostname]
interface FastEthernet 4
[Code].....
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Sep 20, 2011
About twice a day (that I notice) my wireless loses its internet connection. All the wired machines continue to be connected to the internet but any wireless ones lose internet, though they maintain a connection with the router.
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Jul 23, 2012
I am new to Cisco and am studying for my CCENT certification. At the moment, I am attempting to correctly configure a Cisco 871W lab router. Since I have undertaken this task, I have run into nothing but problems. First off it was finding that the previous owner had left a password on it, having to purchase a new USB to DB9 adapter to pass the "break" sequence to the router, and then resetting the router in ROM Monitor mode.
Now, I cannot seem to configure the router correctly, and am quite stumped.
My ISP is Charter (cable internet), and the home network that I am using consists of a Motorola SBV5122 Digital Voice Modem, Motorola SB6120 Cable modem, and, ideally, should also include my Cisco 871W router.
When I connect my router to the SB6120 Cable modem, the router receives an IP address via DHCP and the WAN indicator light turns on.
I have a VLAN configured on the 4 switchports of the router, and it is setep to act as a DHCP server. However, when I connect my PC to rhe router via Cat5e Crossover cable, I cannot access the internet. The router gives the PC an IP address, yet all attempts to ping the PC from the router fail. Somehow, I can connect to the router via SSH though.
Furthermore, I can ping the 127.0.0.1 loopback address from my PC, but cannot do so from the router.
how to correctly configure this router to function as intended in my network situation, however, this is proving to be seemingly unsurmountable!
I have attached the config of my router along with both outputs and commands relating to my predicament.
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Oct 31, 2012
I recently installed Windows 8 on my dell xps 8500 - this was via the discount offer by dell when I bought it with windows 7.
At first I was able to download from the internet but now all I get is this message:
"file is corrupt or unreadable"
Of course this is impossible on every download.
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Jul 23, 2012
I've got 45mbps internet speed with Windows XP and 0.8 with Windows 7..
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Apr 27, 2011
I recently reinstalled Windows 7 because i had a really bad virus that grew and took over my computer.since I have reinstalled windows my internet connection is a wireless netgear WG111v3.The signal is strong but the transmit/receive performance is practically nothing so I cant even download flashplayer etc it just gets timed out.It also takes forever to open a site.before the virus/reinstalling my speed was excellent so I dont know why its changed now.
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May 5, 2013
I've just started styding for CCNA. Bought a router 871W recently and spent two days straight trying to configure internet connection with no luck! I use console port to do the configs and SDM/CCP. How to do simple internet connection configs. I googled everything but it's still confusing. I can't assing any IP to FA ports 0 - 3. I used VLAN instead. But all tutorials use FA0 and when I try to assign an IP to FA0 it gives me some L2 can't be assigned or something... :/ And I'm also confused what IP address should I use for WAN. I plugged the cable from Modem to PC's LAN port and wrote down some IP addresses which I think I'll have to use to configure the router for internet connection. And here they are:
ISP IP: 76.114.54.255
SUBNET: 255.255.248.0
GATEWAY: 76.114.48.1
DHCP: 69.252.97.4
DNS: 75.75.75.75
75.75.76.76
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Oct 24, 2011
recently I have been getting slow internet and download speeds at a later time in the day, when there is 3 or 2 internet connections that show up in my connections. one being mine virgin broadband, another sky and Bthomehub, whenever these connections are up my download speed on steam goes from 1.1mb/s to 250kb/s and i get the message from windows saying' 'windows has detected ip conflict'' I can still access the internet play games online fine, but my download speed is really slow and sometimes internet is slow aswell
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Aug 22, 2012
I upgraded from Vista 64 bit to Win 7 64bit and one of the first things I've noticed was that youtube videos take forever to load, I use to stream on 720p videos in realtime but now even 360p can struggle to load, 480p videos you have to pause for 30 seconds. Oddly, speedtest indicate my full 15mbps down and 1mbps up, regular downloads go fast but streaming youtube, vimeo, or anykind of videos take a while.
My initial guess was that it has something to do with the Wi-fi PCI card. I have D-Link dwl G-550 and on windows compatibility center it says its not supported. Windows 7 automatically detected and installed its own drivers, it works ok.
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