Hello Everyone,
Well on a LAN overall the Internet Speed depends on
many factors However you can try the tweak below.
:jason: Disclaimer: Modifying the registry can cause serious problems that may require
you to reinstall your operating system. We cannot guarantee that problems
resulting from modifications to the registry can be solved. Use the information
provided at your own risk.:no:
Optimize Internet Connection Speed (Windows 95/98/Me)
By optimizing the MaxMTU & MaxMSS settings along with the RWIN and TTL
settings you can increase dialup modem and broadband connection reliability and
performance by as much as 200%.
What is the MTU and MSS?
MTU stands for Maximum Transmission Unit and in basic terms, it defines the
maximum size of a packet that can be transferred in one frame over a network.
MSS or Maximum Segment Size defines how much actual data can put in that
packet, and it is therefore a marginally smaller value than MTU to allow for
packet addressing and other information.
Why do the default values need to be changed?
By default Windows hard codes the value of MTU to equal 1500 bytes. This value
is adequate for normal LAN networking, but when your connecting to the Internet
with a modem this value is too high. This can show itself in different ways, the
most noticeable affect is less than peak performance.
By adjusting this value to more closely match the requirements of a modem
Internet connection huge performance gains can be achieved.
Below are the instructions on how to modify these values for yourself. Please
remember though, modifying the Windows registry is not for the faint hearted.
Always remember to back it up first!
To change the settings you first have to find the details of your Dial-Up
Adapter. Open your registry and find the key [HKEY_LOCAL_MACHINE\Enum\Root\Net]
and within there will be one or more sub-keys such as 0000, 0001 ... 000x
Open each sub-key and find the one that contains the value of 'DeviceDesc'
equal to 'Dial-Up Adapter'.
Within that key there will also be another sub-key named 'Bindings'. Open the
'Bindings' sub-key and you will find a string name like 'MSTCP\0000'. Take note
of the four digit number after 'MSTCP' (in this case 0000) and use it in the
next step.
Now go to the key [HKEY_LOCAL_MACHINE\Enum\Network\MSTCP] and expand the
sub-key with the same four digit number as from the previous step.
In this key you will find a value called 'Driver' and it will be equal to
something similar to 'NetTrans\0002'. Take note of this four digit number (in
this case 0002) and use it in the next step.
Now open the key
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\NetTrans] below
there will be one or more sub-key's. Expand the key with the name equal to the
four digit number from the previous step.
Within this key create two new string value named 'MaxMTU' and 'MaxMSS' and
set them to the values from the list below. Note: MaxMSS is usually equal to
MaxMTU - 40 (the standard IP header size).
Dialup Modem
MaxMTU = "576", MaxMSS = "536"
Broadband Cable or DSL
MaxMTU = "1500", MaxMSS = "1460"
Broadband (with PPPOE)
MaxMTU = "1492", MaxMSS = "1452"
Exit the registry and restart your Windows for the changes to take effect.
Note: In some versions of the Windows TCP/IP stack the MaxMSS value may be
unnecessary but it is included here for completeness.
(Default) REG_SZ (value not set)
MaxMTU REG_SZ "576" MaxMSS REG_SZ "536"
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\N...
Registry Settings
System Key:
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\NetTrans]
Value Name: MaxMTU, MaxMSS
Data Type: REG_SZ (String Value)
For Windows 2000
Change the Maximum Transmission Unit (MTU) Size (Windows NT/2000/XP)
This parameter specifies the Maximum Transmission Unit (MTU) for a network
interface. By optimizing the MTU setting you can gain substantial network
performance increases, especially when using dial-up modem connections.
MTU stands for Maximum Transmission Unit and in basic terms, it defines the
maximum size of a packet that can be transferred in one frame over a network.
Open your registry and find the key below.
Create a new DWORD value, or modify the existing value, called "MTU" and set
it to equal the required MTU size in decimal.
Recommended Values
576 - Dial-up Connections
1492 - PPPoE Broadband Connections
1500 - Ethernet, DSL and Cable Broadband Connections Restart Windows for the
change to take effect.
Note: For Windows NT 4 the key is
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\ Tcpip\Parameters]
Note: IP datagrams may span multiple packets. Values larger than the default
for the underlying network will result in the transport using the network
default MTU. Values smaller than 68 will result in the tranport using an MTU of
68.
Note: IP datagrams may span multiple packets. Values larger than the default
for the underlying network will result in the transport using the network
default MTU. Values smaller than 68 will result in the tranport using an MTU of
68.
(Default) REG_SZ (value not set)
MTU REG_DWORD 0x000005dc (1500)
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\P...
Registry Settings
System Key:
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters\
Interfaces\[Adapter ID]]
Value Name: MTU
Data Type: REG_DWORD (DWORD Value)
Value Data: Default = 0xffffffff
With all these settings you may get good network performance , stability and
consistency
Well on a LAN overall the Internet Speed depends on
many factors However you can try the tweak below.
:jason: Disclaimer: Modifying the registry can cause serious problems that may require
you to reinstall your operating system. We cannot guarantee that problems
resulting from modifications to the registry can be solved. Use the information
provided at your own risk.:no:
Optimize Internet Connection Speed (Windows 95/98/Me)
By optimizing the MaxMTU & MaxMSS settings along with the RWIN and TTL
settings you can increase dialup modem and broadband connection reliability and
performance by as much as 200%.
What is the MTU and MSS?
MTU stands for Maximum Transmission Unit and in basic terms, it defines the
maximum size of a packet that can be transferred in one frame over a network.
MSS or Maximum Segment Size defines how much actual data can put in that
packet, and it is therefore a marginally smaller value than MTU to allow for
packet addressing and other information.
Why do the default values need to be changed?
By default Windows hard codes the value of MTU to equal 1500 bytes. This value
is adequate for normal LAN networking, but when your connecting to the Internet
with a modem this value is too high. This can show itself in different ways, the
most noticeable affect is less than peak performance.
By adjusting this value to more closely match the requirements of a modem
Internet connection huge performance gains can be achieved.
Below are the instructions on how to modify these values for yourself. Please
remember though, modifying the Windows registry is not for the faint hearted.
Always remember to back it up first!
To change the settings you first have to find the details of your Dial-Up
Adapter. Open your registry and find the key [HKEY_LOCAL_MACHINE\Enum\Root\Net]
and within there will be one or more sub-keys such as 0000, 0001 ... 000x
Open each sub-key and find the one that contains the value of 'DeviceDesc'
equal to 'Dial-Up Adapter'.
Within that key there will also be another sub-key named 'Bindings'. Open the
'Bindings' sub-key and you will find a string name like 'MSTCP\0000'. Take note
of the four digit number after 'MSTCP' (in this case 0000) and use it in the
next step.
Now go to the key [HKEY_LOCAL_MACHINE\Enum\Network\MSTCP] and expand the
sub-key with the same four digit number as from the previous step.
In this key you will find a value called 'Driver' and it will be equal to
something similar to 'NetTrans\0002'. Take note of this four digit number (in
this case 0002) and use it in the next step.
Now open the key
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\NetTrans] below
there will be one or more sub-key's. Expand the key with the name equal to the
four digit number from the previous step.
Within this key create two new string value named 'MaxMTU' and 'MaxMSS' and
set them to the values from the list below. Note: MaxMSS is usually equal to
MaxMTU - 40 (the standard IP header size).
Dialup Modem
MaxMTU = "576", MaxMSS = "536"
Broadband Cable or DSL
MaxMTU = "1500", MaxMSS = "1460"
Broadband (with PPPOE)
MaxMTU = "1492", MaxMSS = "1452"
Exit the registry and restart your Windows for the changes to take effect.
Note: In some versions of the Windows TCP/IP stack the MaxMSS value may be
unnecessary but it is included here for completeness.
(Default) REG_SZ (value not set)
MaxMTU REG_SZ "576" MaxMSS REG_SZ "536"
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\N...
Registry Settings
System Key:
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\NetTrans]
Value Name: MaxMTU, MaxMSS
Data Type: REG_SZ (String Value)
For Windows 2000
Change the Maximum Transmission Unit (MTU) Size (Windows NT/2000/XP)
This parameter specifies the Maximum Transmission Unit (MTU) for a network
interface. By optimizing the MTU setting you can gain substantial network
performance increases, especially when using dial-up modem connections.
MTU stands for Maximum Transmission Unit and in basic terms, it defines the
maximum size of a packet that can be transferred in one frame over a network.
Open your registry and find the key below.
Create a new DWORD value, or modify the existing value, called "MTU" and set
it to equal the required MTU size in decimal.
Recommended Values
576 - Dial-up Connections
1492 - PPPoE Broadband Connections
1500 - Ethernet, DSL and Cable Broadband Connections Restart Windows for the
change to take effect.
Note: For Windows NT 4 the key is
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\ Tcpip\Parameters]
Note: IP datagrams may span multiple packets. Values larger than the default
for the underlying network will result in the transport using the network
default MTU. Values smaller than 68 will result in the tranport using an MTU of
68.
Note: IP datagrams may span multiple packets. Values larger than the default
for the underlying network will result in the transport using the network
default MTU. Values smaller than 68 will result in the tranport using an MTU of
68.
(Default) REG_SZ (value not set)
MTU REG_DWORD 0x000005dc (1500)
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\P...
Registry Settings
System Key:
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters\
Interfaces\[Adapter ID]]
Value Name: MTU
Data Type: REG_DWORD (DWORD Value)
Value Data: Default = 0xffffffff
With all these settings you may get good network performance , stability and
consistency