Question about NetGear DG834G Router

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Netgear DG834GT hi there! thx for ur reply. i have checked the MTU and alter to 1493 as u said.it was on 1453 before. and the downstream connection speed is on 416kbps...and upstream connectionn speed is on 448 kbps. so is that fast enough?? is it like what i should get under 2or 3MB speeds?? cos when i sign up with BT broadband it said i will get up to 8MB...depends where i live or near the exchange...i want to make sure that i am getting a least 3MB speed. so am i getting that??

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You will have to set the MTU to 1500, that speed is not enough, if you are getting only 416Kbps downstream, then it's not right, either the router is at fault or your isp, understandably you are on 8mbits but you need to do a line speed check at BT web site and see what you should be getting in theory, as you may be far away from the exchange. The MTU of 1500 may not up it to what is should be, i think you need to check your line filters and get a line check done as 416 mbps is unacceptable.

Posted on Jun 18, 2007

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How do I fix server error 8004849


This is from Microsoft:-

If you receive Server Error: 0x80048849 and/ or 0x80048820 in Windows Live Mail at home or while you're in your regular network, it may be due to the setting of the MTU (Maximum Transmission Unit) on the mail client.
If you get this synchronization error at a coffee shop, airport or a place from where you don't usually connect to the internet, we suggest synchronizing mail on your regular internet connection.
When the MTU setting on the mail client is larger than the MTU settings configured on network devices between your mail client and the mail client servers, some data packets may be lost, causing mail synchronization to fail.
Follow the steps given below to fix synchronization errors due to mismatched MTU settings:
Determine the MTU setting on your network device
Apply the MTU setting to your mail client
Determine the MTU setting on your network device
This is a trial and error process, and will be different for each user. You may have to repeat the procedure below a few times, before you can find out the MTU setting of your network device. Follow the steps below:
Open command prompt
Click Start ? Run ? Type cmd
In the Command Prompt Window, type in the following:
Ping <Mail server address> -f -l 1500
Notes:
The <Mail server address> is the IP address of the mail server that you are unable to synchronize with.
For Hotmail, 65.55.33.106 is the IP address for DeltaSync (mail.services.live.com).In this document we will be using this IP address as an example.
In the -l 1500, 1500 is the max MTU for Ethernet connections.
You may get an error like this (100% packet loss):
C:\Users\username>ping 65.55.33.106 -f -l 1500
Pinging 65.55.33.106 with 1500 bytes of data:
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Ping statistics for 65.55.33.106:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss)
If you received the error above, subtract 28 from the 1500 bytes of data. In the Command Prompt Window, type in the following:
Ping <Mail server address> -f -l 1472
If you get a 0% Packet Loss with 1472, it means the MTU setting of your configured network is 1472
Note: If you continue to receive the error described in (b) above, repeat the above steps by subtracting 28 from 1472 bytes of data. Repeat these steps until you get a message for 0% packet loss. If you were able to communicate with the mail server at an MTU size of 1424, you will receive the following:
C:\Users\username>ping 65.55.33.106 -f -l 1424
Pinging 65.55.33.106 with 1424 bytes of data:
Reply from 65.55.33.106: bytes=1424 time=230ms TTL=241
Reply from 65.55.33.106: bytes=1424 time=196ms TTL=241
Reply from 65.55.33.106: bytes=1424 time=162ms TTL=241
Reply from 65.55.33.106: bytes=1424 time=163ms TTL=241
Ping statistics for 65.55.33.106:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)
Approximate round trip times in milli-seconds:
Minimum = 162ms, Maximum = 230ms, Average = 187ms
Apply the MTU setting to your mail client
Follow the steps below:
Open command prompt as administrator (you must be an admin on the computer)
Click Start ? Run ? Type cmd
In the Command Prompt Window, type in the following:
netsh int ip show int
You will receive a message similar to the following. Find the connection name that you use to connect to the internet and note the Idx value
C:\Users\Username>netsh int ip show int
Idx Met MTU State Name
--- ---------- ---------- ------------ ---------------------------
1 50 1472 connected Loopback Pseudo-Interface 1
11 20 1472 connected Local Area Connection
To apply the correct MTU setting on your mail client, type the following in command prompt:
netsh int ip set interface <Idx value> mtu= <MTU setting of your router> store=persistent
Press Enter
For example, if the correct MTU setting was 1424 and Idx value of your connection was 11, you will type:
netsh int ip set interface 11 mtu=1424 store=persistent
If (c ) was successful, you will receive the confirmation message "Ok"
Exit command prompt
Restart your computer
Open WL Mail and see if the issue persists.
have Windows Vista Home Premium Recently unable to send or recieve Window...

Feb 12, 2015 | Toshiba Computers & Internet

Tip

INTERNET CONNECTIVITY SPEED IS SLOW DUE TO MODEM


Hi People ,
If you experience a slow internet connectivity speed with belkin Basic , Surf , Play , Modem . Just Login to 192.168.2.1....Select connection TYpe PPPOE change MTU Value to 1452


Cheers

on Aug 28, 2010 | Computers & Internet

2 Answers

What is MTU? wut does it stands for and what is it for?


Hello - MTU stands for Maximum Transmission Unit which is a measure of the size of a data "chunk" that can be sent over a network at a time. For example, if you are connected to the Internet using Ethernet the standard MTU is 1500 bytes while being connected over a WiFi connection would mean your using an MTU of 2272 bytes while an old fashioned modem would send 576 bytes at a time.


The MTU usually refers to the TCP/IP protocol which was developed for and is the networking standard for the Internet. MTU has standards for different networking devices, Ethernet, Modems, etc. but they can be modified for the purpose for special uses to achieve greater efficiency.


To read more about MTU there is a more complete description of it at the Wikipedia entry HERE.


Happy Networking


Mikeywaf

Mar 19, 2011 | Edimax BR-6104K Router (br6104k)

1 Answer

I am in riyadh saudi arabia.I have a 2Mbps speed


first check with the speed checking website from ur ISP website

Oct 08, 2009 | Linksys WAG200G Router

1 Answer

I have a xbox 360 that fails the mtu portion of the network connection. i have at&t dsl that is run through the phone jack to the router ( 2wire 2701hg-b) and from the router to the xbox. what do you...


check on the MTU settings of ur 2wire.
This are the steps to see what ur MTU setting is:
>connect a computer to the 2wire
>open Internet Explorer, Safari or Firefox
>enter this on the address bar: gateway.2wire.net/management
>enter ur system password (in case u forget this, click on i forgot my password to get a hint)
>look for Advance in the column on the left
>click on configure services
>on the bottom, u shud see the MTU number
** i searched online and accdg to xbox tech support, ur MTU should be in the range of 1364 to 1500 **
>click on submit after u change the setting
just in case youve entered the correct MTU setting but it still does not work, u might need to contact either xbox or ur internet service provider.

Keep me posted on this one.

Dec 24, 2008 | 2wire 2700HG-B Router (2700HGB)

3 Answers

Mtu test is failing


I've had the same problem and struggled with it for hours... If your on the Comcast network, there seems to be problems with adjusting MTU. I have a Dell 2350 router and that particular router cannot have MTU modified. Also, sometimes the MTU is effected by computers or phones in the house being on. One more suggestion, try a gaming router. Good ones start at 90 dollars, somewhat expencive but well worth it.

Jun 03, 2008 | Microsoft Wireless Network Adapter Xbox...

1 Answer

I have 20mb broadband but only 300kbs download speed


I personally have never known that changing the MTU setting can speed up your connection, as the MTU is the maximum transmition units that is sent to your pc from each web site and if the MTU setting is incorrect then some web sites will not load on your explorer page, the speed at which you download the page will not make any difference.

If you are supposed to get 20MB speed then you must be on cable and not ADSL as ADSL is a max of 8MB, so i would ring up Virgin or whoever and check the speed you should really be getting.

See these details posted on the netgear site, and you'll notice there is no mention of speed:-

Details About MTU
A packet sent to a device larger than its MTU is broken into pieces. Ideally, MTU would be set to the same — large — value on all your computers, routers and switches, as well as on all the parts of the Internet that you access. But you cannot control the MTU on the Internet, and in practice the optimum MTU size on your LAN is related to your hardware, software, wireless interference, etc.
  • Tweaking MTU size may work well in one situation, but cause performance and connection problems in others.
  • When network devices with different MTU settings communicate, packets are fragmented to accommodate the one with the smallest MTU.
  • Windows XP sets MTU automatically, that is, it optimizes computer MTU for you. This Microsoft article explains resolving lack of connection to a broadband ISP using Windows XP: How-To Configure Broadband Connections Using PPPoE.
  • Once a network device fragments a packet, the data stays fragmented until arriving at the destination computer.
Setting MTU size is a process of trial-and-error: start with the maximum value of 1500, then reduce the size until the problem goes away. Using one of these values is likely to solve problems caused by MTU size:
  • 1500. The largest Ethernet packet size; it is also the default value. This is the typical setting for non-PPPoE, non-VPN connections. The default value for NETGEAR routers, adapters and switches.
  • 1492. The size PPPoE prefers.
  • 1472. Maximum size to use for pinging. (Bigger packets are fragmented.)
  • 1468. The size DHCP prefers.
  • 1460. Usable by AOL if you don't have large email attachments, etc.
  • 1430. The size VPN and PPTP prefer.
  • 1400. Maximum size for AOL DSL.
  • 576. Typical value to connect to dial-up ISPs.

Nov 22, 2007 | Microsoft Windows XP Home Edition

1 Answer

Downloading files problems


check with download speed>and while downloading files make sure no fire wall and anti virus is on>and reboot the pc>and check if teh download speed is less then contact ur inter net service provider<>and if u r using any router in teh n/w>and login to the router inter face and disable fire wall>and alway download with the hard wired connection thx

Nov 22, 2007 | Computers & Internet

1 Answer

Netgear router dg834gt


Have look in the router settings for the actual internet connection speeds, as these are a more true reading than the speed check as the speeds can vary at different times of the day and 2 or 3 speed checks can bring different results. your actual connection speed that is showing in the routers settings is the connection you are getting from your ISP. If you are with BT they usually recommend using their latest routers, why i'm not sure, as the only thing i have noted is that the MTU is set at 1500 (Maximum Transmition Units)and in other routers the MTU is automatically set at 1493, so look for the MTU setting and up it if necassary, but not above 1500, also double check all the settings, even put the bt router back in and see if speeds improve, if, you know the BT router is set up purposly for faster connection speeds. Also try checking your speed at a speed test site at a quieter time of day, you will also see different speed check sites give you different speed results.

Jun 18, 2007 | NetGear DG834G Router

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