Changing Mtu -Windows Vista/7

Lowering your MTU

Lowering the MTU can be used in conjunction with disabling Nagle. There are two ways to change your MTU, via software, or hardware.

The lower you set your MTU, the less skill lag you will have. It is recommended that you start at 386 and make it lower to see if there is an improvement. Make sure your MTU is an even number, divisible by 2 or 4. Typically, on a low-speed connection, you will not see any improvement or it will become worse.

Warning: Lowering your MTU too much will decrease your throughput (speed) dramatically. Do NOT change below 1500 when not necessary. Although you will be able to use skills faster, you may be more prone to occasional lag spikes or disconnection due to a severely limited connection speed from your computer, especially on wireless connections. It is recommended that one finds a balanced MTU for your connection speed. You must able to change your MTU back to 1500 readily when you need to use an HTTP connection. The minimum MTU that your TCP/IP connection can function with Mabinogi is 48 MTU, which is allows skills to cast/load/change faster than at 386 MTU most of the time. Lowering your MTU to 48 is not recommended unless you have high ranked connection speed. (IE: Optical Fiber) The MTU setting of 129 seems to give the best results while still preserving the functions of the game. If slow connection bothers you, consider making Batch files, one to lower the MTU for Mabinogi, and one to reset it afterwards. Side Effects (Setting at 128~48 MTU): Slow pet summon speed. Slow shop opening speed. High sensitivity to Server-Side Lag. Unable to read books (HTTP connection). Unable to view Exploration Chronicle. Unable to search Housing Board. To avert these side effects on Windows 7 and Vista please change your MTU back to 1500 as soon as you are logged in a channel. This the pattern; the lower the MTU the less the skill delay: Skill Change Speed: 1500-768-512-386-256-128-48 Slow-------------------------------------Fast Decide for yourself which MTU is the best for what you are doing on mabi. Note: Sometimes you will not see faster skill change times, if you encounter this, please change to a different channel, it is recommended to test all the channels in your server.

Change MTU on Software This will only affect you and your current connection

Windows XP (In the same way you disabled nagle:) Click Start -- RUN and type "regedit" and press enter. Navigate to the following Registry Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces­\ AdapterID In the right-panel, create a new DWORD named "MTU" with the value (in Decimal). Restart your computer. Or use http://www.speedguide.net/files/TCPOptimizer.exe to change MTU

The classic XP MTU change methods do not work for vista.
Windows Vista and Windows 7 see: http://www.kitz.co.uk/adsl/vistaMTU.htm Summary: Run: cmd.exe as Administrator Type/CopyPasteEdit: (For wired connection):

netsh interface ipv4 set subinterface "Local Area Connection" mtu=386 store=persistent (For wireless connection):

netsh interface ipv4 set subinterface "Wireless Network Connection" mtu=386 store=persistent 3. Press Enter 4. Relog/change channels if you have mabi open already. Restarting computer is unnecessary on vista/win7. Some connections may not follow the standard names. To see your current connection name, right-click the double computer icon and click 'Network and Sharing Center'. In the first section, second row is your current connection name. Remember you must enter the exact name for it to work.

Category:

Entertainment

[rasjjtube]

how do i figure out my current mtu?

[aaron200111]

@rasjjtube I believe its somewhere in the system information idk really... where acctually its been a while since i messed with mtu

[emoxrocker13]

this is mine:

netsh interface ipv4 set subinterface "Wireless Network Connection" mtu=576 store=persistent

are you saying if i just change the 576 to a lower munber, the speed will be enhanced?

[aaron200111]

@emoxrocker13 I use 152 MTU o.o and it may or may not Depending on ur Connection it could d.c you depending on how good you are connected but yes it can most likely make you Faster in gameplay Wise

[aaron200111]

@bmoua60 its diffrent for all Computer ima make a way better tuturial this one was fail as fail can get i use 152 For Mabinogi

[aaron200111]

@runeplaya5 i know it will bro XD ive used it for pvp purposes for years whats ur server? And just add Darkaaron of Mari server im like 1.4k but i have played since beta ended D: exact min too

[runeplaya5]

@aaron200111 i dont sorry and lowering mtu will help skill related lagg on mabi.

[aaron200111]

@runeplaya5 Wait why do u wanna lower mtu for mabi? Or do you play mabi? And if u got steam add aaronroy12 ill help you out with all you need

[runeplaya5]

@aaron200111 it was mainly for lowering my MTU, thats why I was looking for a guide like that. Nagle is completely different from what I was asking. Disabling Nagle is fairly easy.

However lowering MTU manually on XP is abit hard. I've looked though quiet alot of guides and im not sure exactly how.