Question about Belkin (F5D5231-4) Router
Setting the NIC card to 1500 will NOT change anything at all if your router is set differently. I have the same router and there is no way I can change the mtu that I can find. Speedguide says my mtu is 1492, but I do not have a dsl line, I have cox cable. My connection is manually set for 1500, but the router appears to be overriding that, even though it's set for dynamic, not PPPoE. I'm running Vista 64 without autotuning.
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Posted on Jan 02, 2017
MTU, Partial Loss of Internet Connection, and Performance MTU (Maximum Transmission Unit) is the largest packet a network device transmits. The best MTU setting for NETGEAR equipment is often just the default value. MTU is sometimes presented as something that can be easily changed to improve performance, but in practice this may cause problems. Leave MTU unchanged unless one of these situations applies: 1. You have problems connecting to your ISP or other Internet service, and their technical support (or NETGEAR's) recommends changing MTU. For example, these services may require an MTU change: * Yahoo email * MSN * AOL's DSL service 2. You use VPN, and have severe performance problems. 3. You used a program to "optimize" MTU for performance reasons, and now you have connectivity or performance problems. * An easy solution to most problems is to change MTU to 1400. * If you are willing to experiment, gradually reduce MTU as described in "Details of MTU", below. How to Change a Computer's MTU Size Note: If you change MTU on one computer, it is likely you will want to change it on your other computers, switches, and routers, as well. Instructions for changing MTU on other NETGEAR devices is found in the Reference Manuals. The third party Dr. TCP software can be used to change the MTU setting. 1. Download it from this link, choosing the zip file or the exe file at the top of the page. 2. Run the utility. 3. In the Adapter Settings pull down, select the Ethernet driver and adapter used to connect with the network. 4. In the MTU box, type the MTU size you are trying. 5. Click in any other box, without changing the data there. 6. Click Save. 7. Click Exit. 8. Restart the computer. 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: http://www.microsoft.com/windowsxp/using/networking/learnmore/ppoe.mspx * 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.
Posted on Feb 19, 2006
SOURCE: 360 mtu test keeps failing
Using the main computer, open your Internet Explorer and on the Address Bar type http://192.168.1.1
It will prompt your for username and password. By default leave it blank on username and type admin on the password
Under SETUP tab, you can see there MTU, set it to Manual and set the size to 1400 then click on SAVE SETTINGS at the bottom.
Now powercycle your devices. Turn off router first and then modem. Wait for 30sec. Turn on modem first, wait for lights to stop blinking then turn onrouter.
Posted on Aug 08, 2008
SOURCE: unalbe to connect ot x box live
Have you verified that on the router end of things?
On your computer, open up your browser and type in "192.168.1.1" on the address bar (where you type websites)
Next it will prompt you for a username and password. By default leave the username blank, and enter "admin" as the password.
When the page loads you will see a tab that says "Setup", click that. You will a setting that says MTU, change that to "Manual" and set the size to 1400, then hit "Save Settings"
After that unplug and re-plug your router (give about 20 seconds in between) and restart your XBOX. You should be good to go. If that does not work try to bypass the router and connect it directly to the modem to see if you have the same issue
Posted on Feb 25, 2009
You may have to use trial and error to find the best MTU fit:
MTU Default of 1500 to 1492
Tart the setting the MTU @ 1400
MTU setting. Xbox LIVE requires a minimum MTU setting of 1364.
The information your console sends and receives is broken up into "packets" for transmission over your network. MTU is a setting that controls the size of these packets. If it's too small, you won't be able to connect to Xbox LIVE.
Top Solutions Try these solutions in order. If you give each one a shot and you still can't connect, contact Xbox Customer Support. Note that they will ask you try the suggestions on this page first.
Solution 1: Check your router MTU settings Xbox LIVE requires a minimum MTU setting of 1364. Usually, you can change your MTU setting from your router configuration web page, which is supplied by your router manufacturer.
Learn how to find and use your router configuration page
Look for the MTU setting on the router configuration page. When you find it, set it to Auto or 1364 (or higher), save your settings, and then try to connect to Xbox LIVE again on your console.
Solution 2: Connect directly to the modem If your router's MTU is set correctly, try bypassing it by connecting your console directly to the modem. This will help determine whether there's a problem with your router or something else on your network.
This may require you to move your console to a location close to your modem. This is a temporary arrangement, meant only to troubleshoot your connection. If your console is connected wirelessly, you'll need an Ethernet cable for this step.
To connect your console directly to your modem (wired connection):
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Posted on May 06, 2009
You can adjust MTU from within the Belkin Router administrative console. You really should not be changing it unless your current ISP gives you a specific MTU setting, otherwise you could disrupt internet connectivity.
Default IP address: http://192.168.2.1
Default admin username: Administrator
Default admin password: <blank>
Be sure to set a password for your router!
This is the address where you change MTU
Belkin Wireless G User Manual:
Windows Tools to adjust MTU:
Posted on Jun 12, 2009
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