MTU - how can I change it?

  Diemmess 10:16 15 Mar 2008

Routers are new to me and though mine is working, Everest shows the MTU value is 1500 and somewhere I've seen that Aol suggest a figure of 1430.

I'm pretty sure I meddled briefly some time in the not too distant past, but now I cannot find the path to alter the figure.
I don't wish to upset things by blind tinkering.

The router (ADD-GWAR3500) is wired to the PC and wireless signals are connecting to the laptop (Both using XP Pro)

  MAT ALAN 10:48 15 Mar 2008

click here

this may help...

  glen2409 10:53 15 Mar 2008

this should do the trick, I use it

click here

  Stuartli 11:27 15 Mar 2008

Even easier is to use TCPOptimiser - you can Customise the MTU setting to the 1432 required by AOL and TalkTalk.

  Diemmess 12:06 15 Mar 2008

MAT ALAN: The Microsoft way - yet to be tried

glen2409: Tried but perhaps missed something and Everest still said MTU 1500

Stuartli: TCPOtimiser seemed to work and Download speed has improved.

There was a heart stopping moment when no Aol page would develop. Panic.... but Firefox worked properly straight away.
So did Aol when I tried a second time! and my favourite speed test showed an improvement from about 1530 to about 1720 (max 2000).

Assume I should treat the Laptop similarly while the router just does what it does?

Everest still insists I have MTU=1500, and Yes - I did reboot each time I fiddled.

Perhaps I should just get out more, but its a murky miserable day out there.

  kdt 13:26 15 Mar 2008

on my netgear router default was 1458 in 2006 & aol home networking was suggesting 1400 so changed to 1400 since then & working fine. just had to update the firmware 2007.

  Stuartli 13:53 15 Mar 2008

Glad it's better.

I think you will find that TCPOptimiser states 1400 is the "correct" setting, but to use 1432.

Anyone who uses the TalkTalk (which also owns AOL) Connect 'n Go installation disk has the MTU set automatically at 1432; this is a lower figure than used by many ISPs, whilst the Windows default figure is 1500.

Also see:

click here

  Stuartli 13:54 15 Mar 2008

The Windows figure doesn't matter as it's the router that is involved with the broadband connection; the MTU figure is set as part of its configuration.

  Stuartli 13:59 15 Mar 2008

Also see:

click here

  Stuartli 13:59 15 Mar 2008

Also see:

click here

  kdt 15:13 15 Mar 2008

by the way it was netgear support which asked me to try 1450 to 1400 and I chose 1400.

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