Thread: How to change the MTU in dataone(UT300R2U)?

I have a problem opening some certain sites. While searching
on google , I came to know changing the MTU may solve the problem.

os : windows xp service pack 2
router type : UT300R2U.

I can't find any option to change the MTU value in my modem.

please help .

best regards,
Spectre

MTU option will be in internet connection settings. Before trying MTU, try Open DNS

Originally Posted by Spectre

I have a problem opening some certain sites. While searching
on google , I came to know changing the MTU may solve the problem.

os : windows xp service pack 2
router type : UT300R2U.

I can't find any option to change the MTU value in my modem.

please help .

best regards,
Spectre

1. In WAN settings uncheck "Bridged" and select ppp/PPPoE
In the page where you enter UserID ( without @ bsnl.in ) and pw
MTU box may be available.

PPP Username and Password

PPP usually requires that you have a user name and password to establish your connection. In the boxes below, enter the user name and password that your ISP has provided to you.


PPPoE Service Name:
PPP Username:
PPP Password:
PPPoE Service Name:
Authentication Method:

Enable Fullcone NAT

Manual connect
Dial on demand (with idle timeout timer)
Inactivity Timeout (minutes) [1-4320]:

MTU [1000-2000]:
PPP IP extension
Use Static IP Address

**************************************
2.
try tcp/ip optimizer from speedguide.net.
follow the instructions.
Post ipconfig /all data
Start run type cmd type ipconfig /all

you can do this in windows too Prashanth Speaks-Technology and Life: How To Change MTU Values In Windows

Originally Posted by meetdilip

MTU option will be in internet connection settings. Before trying MTU, try Open DNS]

hi mate , I am using Ppp over Ethernet , not bridged mode so I don't have
to manually connect to the Internet.Sorry I did not mention this before. :P

Please provide me with information how to change the dns with my Router.

Explained here (with screen shots)

http://www.indiabroadband.net/broadb...nectivity.html (How to repair - Limited or No connectivity)

Hey Essbebe , how you doing mate?

Well bro , there is no MTU box available there.

Code:

 
« SpeedGuide.net TCP Analyzer Results » 
Tested on: 06.26.2009 10:31 
IP address: 117.198.x.xxx 
Client OS: Windows XP 
 
TCP options string: 0204058c01010402 
MSS: 1420 
MTU: 1460 
TCP Window: 65535 (NOT multiple of MSS) 
RWIN Scaling: 0 bits  
Unscaled RWIN : 65535 
Recommended RWINs: 65320, 130640, 261280, 522560, 1045120 
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s) 
MTU Discovery: ON 
TTL: 112 
Timestamps: OFF 
SACKs: ON 
IP ToS: 00100000 (32) 
    Precedence: 001 (priority)
    Delay: 0 (normal delay)
    Throughput: 0 (normal throughput)
    Reliability: 0 (normal reliability)
    Cost: 0 (normal cost)
    Check bit: 0 (correct)
DiffServ: CS1 001000 (8) - class 1 (RFC 2474). Similar forwarding behavior to the ToS Precedence field.

Ipconfig data

Code:

Windows IP Configuration

        Host Name . . . . . . . . . . . . : sun-8daf7f7408d
        Primary Dns Suffix  . . . . . . . :
        Node Type . . . . . . . . . . . . : Unknown
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

        Connection-specific DNS Suffix  . :
        Description . . . . . . . . . . . : Realtek RTL8139 Family PCI Fast Ethe
rnet NIC
        Physical Address. . . . . . . . . : 00-30-18-AB-44-69
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.1.2
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.1.1
        DHCP Server . . . . . . . . . . . : 192.168.1.1
        DNS Servers . . . . . . . . . . . : 192.168.1.1
        Lease Obtained. . . . . . . . . . : 2009-06-26 19:39
        Lease Expires . . . . . . . . . . : 2009-06-27 19:39

Originally Posted by meetdilip

Explained here (with screen shots)

http://www.indiabroadband.net/broadb...nectivity.html (How to repair - Limited or No connectivity)

thanks , I got it but have not yet try it though. :P

I have downloaded DRTCP and Speed Optimizer for changing the MTU but have not changed it yet.

Edited : I have changed my dns server

one down , one to go ..

Now it's MTU turn ...

Waiting for your replies ..

@spectre
I mentioned

MTU box may be available.

Depends on the Firmware version.
There are two versions of Ut300r2u Old and new .
members respond to posts with minimum input from thread starters
and have to assume so many details.

Also other option/s were mentioned.

Changing DNS is a simple process. You can always switch back to previous one.

Originally Posted by essbebe

@spectre
Also other option/s were mentioned.

So the other options you mentioned in your first post do works?

I read somewhere in the different site's forum these options change only
registry values only but the modem's MTU does not get affected.Sites such as
speedguide.net shows the unaffected results.

please confirm this.

Open DNS failed to yield result ?

Originally Posted by meetdilip

Open DNS failed to yield result ?

Nope bro , it's working like a heaven.

But I am determined to change the MTU value, Call me crazy.

I greatly appreciate your help.