Changed MTU size, reverted back to default, noticable lag now


  1. silentnelite
    Posts : 11
    MS Windows 7 Home Premium 64-bit SP1
       New #1

    Changed MTU size, reverted back to default, noticable lag now


    Hi, well first of all the reason I changed it was because I tried to optimize (my mistake) by reducing it. My router is set to 1365 MTU manually after a support tech from Linksys asked me to change it for a previous problem. I used the "netsh interface ipv4 set subinterface "Wireless Network connection" mtu=nnnn store=persistent" command to change it around to find what MTU Windows uses automatically. It was set at 1500 (for both LAN and WLAN). I set the WLAN to 1365 to see how it would perform, didn't see a noticable change I believe so I switched back. Now I see a slight lag when loading sites. I also compared the time against another pc that I did not tamper with (which by default was set to 1500) and that one worked normally.

    I fear I may have overridden Windows defaults for handling MTU since after manually setting it to 1500 (was originally 1500 when it was untouched) it lags a little. For the time being I set it to 1365 to get the performance that I normally got with default settings.

    My question is if it's possible to get the original performance back with the MTU set back to what it was originally (1500)?

    Also I learned my lesson and won't be trying to change settings without first making sure they are completely reversible. Also I'd like to do this without using System Restore.

    Thanks in advance.
      My Computer
    Quote Quote

  3. AddRAM
    Posts : 13,576
    Windows 10 Pro x64
       New #2

    What browser do you use.
      My Computer
    Quote Quote

  4. silentnelite
    Posts : 11
    MS Windows 7 Home Premium 64-bit SP1
    Thread Starter
       New #3

    Firefox 18. Also where in the adapter settings did you say I could find the Mbps, I didn't know that was possible from there. From online speed tests I get ~15 Mbps and down and 2 Mbps up.
      My Computer
    Quote Quote

 

  Related Discussions
We installed 365 on my wife's machine strictly to resolve an Outlook 2010 problem with intention to later, but not yet, remove Office 2010. At the moment she's using Word and Excel 2010. However, 365 changed the default Word from 2010 to 2016. If you visit 'Change default programs' instead...
When I used to open mspaint the pencil was the default tool and the default size was the thinnest. Now it defaults to the brush with a default size one step up from thinnest. Something changed but I don’t know what. Is it possible to get it to default on something like the pencil or line,...
No clue what happened, but WMP used to automatically open in a small player, but the other day it started opening in a massive window & now I can't get it to change back to opening in a small window by default Can't find anything online that tells you how to change the default player size for...
So I was looking into making a batch file, followed some bad advice, and set my notepad files to open with cmd. Now even if I go and set default program, it does not save it and will open with cmd the 2nd time. It seems the option to always use the selected type of program is grayed out. How can I...
First time posting, I hope I got this in the right section. My situation is: For part of my IT coursework I had to explain and show evidence of tweaks that could be done in Windows 7 that could help visually impaired users use the computer better, and one of the ways I explained was about...
Our Sites
Site Links
About Us
Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

 © Designer Media Ltd
All times are GMT -5. The time now is 02:20.
Find Us