Difference Between Long And Short Preamble And When To Use Each Of Them
Oct 22, 2011What's the difference between Long and Short Preamble and when to use each of them?
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Minimum Acceptable Size For Preamble In Ethernet Packet
Jun 5, 2012I want to know that what is the minimum acceptable size of preamble in ethernet frame. if it is less than 7 bytes before sfd begins , will the packet drop?
View 1 Replies View RelatedD-Link DIR-655 :: Range Is A Little Short?
Feb 26, 2012I seem to get worse range on the DIR-655 than I did on the DIR-615. I was able to walk out to the parking lot with 1 bar of signal on my phone with the DIR-615. I can get about half way there before I have no signal now that I've got the DIR-655. Are there some settings to disable that might be playing a role in this? I've got the router configured for wireless N only, could that have something to do with it?
View 3 Replies View RelatedShort Ping General Failures?
May 18, 2011My internet connect works fine for hours at a time, then suddenly will get 7 or 8 General Failures while pinging (long enough to boot me off the net) then will be back to working fine immediately afterwards.Pinging 127.0.0.1 works fine. I've checked the firewall (Norton) and it has the default settings
View 3 Replies View RelatedDIR-655 All Downloads Stop After Short Time
Jun 8, 2011I'm having a problem with my router a Dlink DIR-655. I know its the router because if I direct connect from my cable modem the problem does not exist. What happens is I start downloading/streaming something it will start and then just stop prematurely causing me to restart it to get it too finish. For example on youtube, I start loading a video it loads normally for 2 mins of video and then will stop. I can get it to restart if I swap video quality and then it just does same thing. Loads around 2 mins of video then stops loading.
I have tried switching browsers, and I changed my MTU size from 1500 to 1300.My motherboard is a GA-P67A-UD4-B3 if that matters. I have the latest firmware on my router.
D-Link DIR-655 :: Setup Short Password Or PIN Number?
Feb 11, 2013I am using the 26 character WEP code. Was wondering if it's possible to setup a short password or PIN number. Been troubleshooting problems with a wireless blue ray player that has required multiple resets. Entering the wep code with the remote is hard!
View 5 Replies View RelatedCisco Routers :: SRP521W Falling Short
Feb 25, 2013We have been using a SRP521W as the main Router for an office with about 25 users.
So on the cable network it's about 25 computers, 25 IP Phones, 3 printers. Wireless network hold some smartphones and tablets. Computer traffic is 100% Remote Desktop.
That said, for the last few days network connectivity sucks. I think the problem is, precisely, the SRP521W. Some mornings the WAN link is down and can only be brought up by a router reboot.
There's an IPSec tunnel to HQ.
Wireless network was moved recently to a WAP121 to offload the SRP521W. It has two networks: internal and customers with two VLANs.
CPU Usage is around 30-45% all day and spikes to 100% sometimes. RAM Usage is 40-45%. I do not know if this is "too much", "average" or "really low load".
Anyway, time for questions:
a) How can I get a table of active connections on the firewall/NAT to see if there anything "strange" on the network traffic that maybe causing issues?
b) Is there any know bug in the VLAN handling of the SRP that maybe causing the issue? (it's one of the latests changes introduced).
c) If the problem is that there's too much load for such a small router, what replacement would you recommend given the details above? (remember I do not really need wireless on the router as I have the wap121).
Internet Drops Every 5-15 Minutes For A Short Period Of Time?
Sep 14, 2012So, I just upgraded my mobo/cpu (Z77A-G45 and i5-2500k) and I'm having an issue with my connection as it seems to drop every 5 to 15 minutes constantly and have no idea what exactly is wrongThe kicker is my old mobo did the same thing and I had to do something in win7 to fix it (not sure if it was the drivers or what) but I just can't remember what exactly.
View 1 Replies View RelatedLinksys Cable / Dsl :: Wag120n Wifi Range Is Too Short
Jul 10, 2011Just got a WAG120N modem/router , everything is set up and works fine.But I am very disappointed with its wifi range.After using an iPhone and a PSP , I found that, its range is 1,80 meters only, in empty room.Is it faulty ? I cant believe its range is too short although I know that its not "enhanced speed & range" as typed on box.I tried all combination of channels/protocols with no success and it's already flashed on latest version. I really cant connect to my wifi devices.
View 2 Replies View RelatedLinksys Wireless Router :: Very Short Range For E4200
Apr 9, 2011I bought an E4200 to replace an old buffalio Nfinity. The range on the 2.4 and 5 GHz have both been extremely short -- shorter than the old Buffalo. 1 meter from the router, I get five bars on the laptop and 3 bars on ipad. 3 meters away with direct line of sight, the laptop dips to 4 bars. Down the hallway about 4-5 meters away, the 2.4GHz is one 1 bar on laptop and ipad. the 5GHz is gone. This is two rooms away from the router in my apartment. Isn't that a bit shocking in terms of performance? A webcam that is two rooms away registers a 6% signal from the E4200.Does this sound like faulty hardware, e.g. bad antennae? I would think it is something about the build of my apartment building, but my old buffalo did MUCH better than the E4200. two Ipad bars where the E4200 has one...and in very unstable condition.
View 9 Replies View RelatedCisco Wireless :: AIR-lap1310G-E-K9 Short Signal Length
Mar 27, 2012I have a Cisco WISM2 installed on Cisco cat 6509, with 39 indoor (3502i) and 14 outdoor (1310G) Access point, so the problem i am facing is that, the controller recognizes all AP and they are all configured and working well, then the signal of the outdoors (1300) its broadcast in a very short length like 60 meters, and i don't understand this is likely having a problem with a controller software version or ... being at 3m, my card does not show excellent signal strength and yet with the indoor thing are Ok.
View 4 Replies View RelatedCisco Infrastructure :: 6500 / X2-10G-LR Reuse On Short Distance?
Sep 25, 2012I need to implement VSS on 6500 equipped with Sup720-10GE and WS-X6704; considering that this last 10G card doesn't support VSL, I need to realize VSS interchassis connections on Supervisor 10G interfaces, but I only have X2-10G-LR. Considering that the 2 6500 are in short distance (few meters): is it possible to use 10G long range optics and, if yes, do I need some additional patch?
View 1 Replies View RelatedF9K1002v1 / Connected To Wireless Network For Short While But Cannot Access Internet
Sep 14, 2012There is a problem with establishing an internet connection between my laptop and any wireless network, and hence the internet cannot be accessed. Though, the connection can be established locally between my laptop and the wireless network for a short while before the connection is lost locally. There is certainly no problem with my current wireless router as there are internet connections between the wireless network and other devices. Prior to using the current wireless router, I used Linksys WRT54G for internet connection until recently when there was no connection between all devices and the Linksys wireless router, so I changed my wireless router to the current one. However, the problem still persists for my laptop. I can only get access to internet when my laptop is connected to the router using ethernet cable, as well as when my laptop is connected to the main cable modem using the same cable.My laptop model is Fujitsu Lifebook S Series and my laptop is running on Windows Vista Service Pack 2 and my current wireless router is Belkin N300 Wireless N Router Model F9K1002v1.What I have done so far are that I have ensured that the DNS client and DHCP client service are enabled and that I have used the method of "/release, /dnsflush and /renew" on the command prompt.Below is the /ipconfig /all description when this laptop is connected to the cable modem using ethernet cable:
Windows IP Configuration
Host Name . . . . . . . . . . . . : FujitsuUser-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
[code]....
TP-Link 150Mbps Wireless :: TL-WR740N Router - Can't Select Short GI
Apr 2, 2013Region : USA
Model : TL-WR740N
Hardware Version : V4.20.0
Firmware Version :
ISP :
Region : UnitedStates
Model : TL-WR740N
Hardware Version : V4.20.0
Firmware Version : 3.16.5 Build 130322 Rel.59120n
ISP :
Even before I did the latest firmware flash I couldn't select short GI under Advanced Wireless - it was simply greyed out even though WMM was enabled above it. Now after a factory reset and recreating all my settings I still can't select it.
Cisco Wireless :: WAP4410N Access Point Disconnect After Short While?
Jun 12, 2011I got a CISCO wap4410n access point and it is disconnecting uses after a shorl while. I hv to again connect them manually.
View 1 Replies View RelatedHP Pavilion Elite HPE-580t / Internet Connection Randomly Drops In Short Spurts?
Oct 7, 2011ISP: RCN Type: Cable Security: None, had Microsoft Security Essentials running but uninstalled that to see if it was causing an error. Basic Windows Firewall is enabled (although have tested without)
The problem I'm having is the internet on my HP Pavilion Elite HPE-580t PC will drop for these short 10-30 second bursts. After the drop it will automatically start working again. This happens with all programs I'm running on the computer. The odd thing is that it's in a way random. Sometimes I won't get these drops for 30 minutes but then I'll get them every couple minutes.
I've been trying to pinpoint the problem but haven't come up with anything. I tried plugging the computer directly into the cable modem and still had a problem (which I assume ruled out the router as a problem). It also would seem to rule out this being strictly a wireless issue. I removed antivirus (Microsoft Security Essentials) and have tweaked with turning off the firewall completely. I've tweaked the power saving settings to make sure the adapters are not turning off. Even went as far as blanking the hard drive and re-installing the factory settings.
It's worth noting that I have no problems with other devices online. I have a laptop (uses XP) that uses both wireless and a direct connection to the router without issues. An iPad and Xbox 360 has had no drops when in use. This issue only happens with the desktop. The only difference in this device is it uses Windows 7.It doesn't appear to be the ISP (unless there is something they would do to cause issues with Windows 7) and the issue happens regardless of the router being used or not. It doesn't appear to be the wireless card since it still had issues plugged in. So I feel like it has to be either some setting on Windows 7 or some other hardware issue (Motherboard?).
Cisco WAN :: Implementation Of Short Sequence Number Format Support In PPP Multilink Header For MWR 2941
Jun 11, 2012One of my customer has raised a new requirement for implementation of short sequence number format support in PPP multilink header for Cisco MWR 2941 E1/T1 serial interface, whereas router is supporting long sequence number format.here is the output of "debug ppp negotiation" command:-Currently in the MWR debugging logs we can see that by default MWR is sending long sequence header format as below
*Mar 13 01:32:55.438: Se0/2:0 LCP: O CONFREQ [REQsent] id 238 len 25
*Mar 13 01:32:55.438: Se0/2:0 LCP: MagicNumber 0x26CDF693 (0x050626CDF693)
*Mar 13 01:32:55.438: Se0/2:0 LCP: MRRU 1500 (0x110405DC)
*Mar 13 01:32:55.438: Se0/2:0 LCP: EndpointDisc 2 16.16.16.11 (0x1307021010100B)
*Mar 13 01:32:55.438: Se0/2:0 LCP: MultilinkHdrFmt seq long classes 2 (0x1B040202)
While as per the requirement PPP multilink header should support short sequence.
MWR configuration:
controller E1 0/2
framing NO-CRC4
clock source line
channel-group 0 timeslots 1-31
[code]....
Webpages Take Way Too Long To Load?
Mar 10, 2012I have 2 laptops and 1 desktop in my household.Lately, I have noticed that webpages take way too long to load. Speedtest reported 2Mbps download and 0.07Mbps upload (that upload speed is not good, is it?)So on my main desktop I looked at the Send/Receive of the packets right after start-up and it showed like 200,000 sent and 7,000,000+ received. that is not normal, right?On my netbook, I looked at the packets and it showed 200,000 sent and 23,000,000+ received. I am thinking there is definitely something wrong with one or both of them.This laptop I am on right now is the only one not suffering from connectivity problems. Without the other two computers connected to the network, my web-surfing is completely normalAnyway, I dont know what the problem is, but I can't do anything on the internet. I can barely open a page on Google with those 2 computers. It's terrible. I have run Virus Scans and Malwarebytes + SUPERantimalware scans and ALL have come back negative. So...[CODE]
View 7 Replies View RelatedWeb Page Is Taking Too Long To Respond
Mar 3, 2012It is good at times but usually it gets slow and web pages come up with "The web page is taking too long to respond". When I run Diagnose, sometimes I get the computer is correctly configured, but something is wrong with the DNS server (I dont know what that is). I have a NetGear CGD24G Wireless Router that was supplied by Charter when I got internet from them again. I also run Windows 7.
View 12 Replies View RelatedMusic And Videos Take Too Long To Buffer?
Feb 23, 2012I use to could be able to watch videos and listen to music, and download at optimal speeds, I could even watch HD if I wanted to, but now all of a sudden (starting at least 3 weeks ago) videos, downloads, and music seem to run super slow no matter what quality I have it on. It takes 5 minutes to buffer a 3 min video, and if I want to watch a show, it take like 2 or 3 hours to fully buffer. My internet still goes fast, and I have trendmicro antivirus, as well as ccleaner, i updated my drivers, i have ie9 and adobe flashhplayer 11.1, i updated everything in windows update, i unplugged the modem for awhile and shut down more often, and opened it up and blew all the dust out. I don't know what else to do. I do have a cisco E2000 wireless router if that's a problem, and both my ps3 and my computer are on the connection, but my computer was working fine with both on the same connection for a year. I go on the http:192.168.1.1 cisco place, and i renewed ip settings, and nothing worked.
View 19 Replies View RelatedLong Range Wifi Through Buildings
Mar 16, 2012I've recently lost my ability to access the internet at uni and as this is quite an inconvenience I am considering some alternatives, the most viable one I've managed to come up with hinges on the fact that I live in a building which is only a road and another building away from the main uni buildings (3 buildings on 2 city blocks), basically it looks like this: UNI BUILDING 1 | UNI BUILDING 2 |ROAD| UNI BUILDING 3 |ROAD| MY APARTMENT.So I'm thinking of building one of these: url.. or waiting for the r20000g (dual band) to come out and buying that.THEN the area I'm having a bit of trouble with: I need to get reception about 600-700m away through buildings, so I've been looking at Yagi antennas and such but can't seem to find any information on the following:
1. Will a high powered directional antenna go through a few buildings and still make it 1km (.6 miles)
2. How directional is a directional antenna? like if I point one in the general direction of the building how accurate do I have to be? (I have no problem buying 4-5 antennas if I need to)
3. Do I need a new Wi-Fi antenna for my laptops? it seems odd to me that a laptop would be able to transmit back 1km while I need a giant antenna to get to the laptop (I know its not this simple but it still seems odd)
Long Range Wireless Adapter?
Feb 18, 2013I have no problems with my adapter its just that my router is too far from my desktop and I need something that can reach far lengths , I don't recall what my wireless name is other than it uses 802 g type but it doesn't cut it when I want to play league of legends, so any recommendations? Also just moving my desktop is not an option
View 2 Replies View RelatedHp 5102 Takes Long To Start?
Aug 31, 2011my hp 5102 takes long to start.
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Dec 5, 2012how long does a netgear router last
View 2 Replies View RelatedTaking Too Long To Connect To Some Websites
Oct 13, 2011Past couple of weeks trying to connect to some websites. It is only SOME, not all websites. It will either say that it is taking too long to connect or that the website is experiencing problems. I have no idea where to start as i am pretty clueless when it comes to configuring/repairing network related issues.
View 3 Replies View RelatedBest Long Range Usb Network Adapter?
May 4, 2012I am looking for a really powerful long distance network adapter with high gain antennas
View 2 Replies View RelatedCisco :: How Long Tcp Should Wait For Close Connection
Dec 24, 2012i want to know that how long a tcp should wait for close the connection.
View 3 Replies View RelatedLaptop Takes Too Long To Connect To A Network?
Sep 19, 2012Every time i boot up my laptop the little blue ring in the lower right corner just completely stops and it keeps me from opening anything and i have to wait at least 2 to 3 minutes to start up?
View 3 Replies View RelatedBT Router Won't Send Over Long Distance Cable
Feb 27, 2012I have an old White BT router (from the UK)
Also a 60m ethernet cable. It won't send a signal far enough to be picked up by an ethernet port on another computer at that distance via cable.
However, a modern Zyxel Router will chuck it through that length of cable OK
way to get the BT router (v1 or 1.5) to do this ?
BT Router Won't Send Over Long Distance Cable?
Feb 27, 2012I have an old White BT router (from the UK)
Also a 60m ethernet cable. It won't send a signal far enough to be picked up by an ethernet port on another computer at that distance via cable.
However, a modern Zyxel Router will chuck it through that length of cable OK
is there a way to get the BT router (v1 or 1.5) to do this ?
Long Distance Cable - Signal Dropping?
Oct 29, 2012Our house is located up a hill and a long way (1,400ft) from the main road and we always have problems with the signal dropping on our cable internet connection. According to the line tech's that have been to our house the problem lies with the 20+ year old cable that is being used to get the cable signal from the road box to the house
I am wanting to replace that cable but from what i have read so far is that cat 5/6 cannot go the distance i require
I have looked into going with a long range wi-fi but there is no direct line of site from the road to the house and there are a million tree's in between us and the road so its not really practical .we are not needing any major amount of speed, just enough to do surfing, streaming, and the kids like to do multiplayer gaming. 7-10mbps would be great for us, before we started having problems with the cable we were only getting 4-5mbps and that was enough for what we needed
Best Long Range Router For Neighborhood Networking?
Sep 17, 2012i am interested in setting up a neighborhood wifi network between myself and friends. presently i own an Asus Rt N66u router along with a Hawking Technology range booster but haven't been able to get sufficient range from this. is their any router or networking device that i can use to at least achieve like 1 mile network range and coverage,which should be more that sufficient to accommodate my networking needs?
View 8 Replies View RelatedLong Range Routers For Wildlife Cameras?
Sep 20, 2012i have 13 acre and wanted to know about using a security camera set up wireless,solar power IR motion sensor type set up??
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