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Sammy00 Posted:
Has anyone setup a
W52p phone for
vonage? I have
a W52p with two
wireless handsets,
...

In The Forum:
Hard Wiring - Installation
Topic:
W52p Setup
On Aug 30, 2016 at 10:38:01

James44 Posted:
Hi, I am
looking for a good
Sip Trunking
provider in
Canada. they
should offer
...

In The Forum:
Vonage
Topic:
A good sip trunking provider
On Jul 17, 2016 at 23:42:46

James44 Posted:
Which network
connection do you
use?
...

In The Forum:
Vonage
Topic:
Wireless Access Point plugged into switch
On Jul 13, 2016 at 22:55:00

jjatsk Posted:
We are renting a
few offices right
next door to our
main building. I
have a wireless
...

In The Forum:
Vonage
Topic:
Wireless Access Point plugged into switch
On Jul 09, 2016 at 12:00:54

Pman Posted:
Hello, While
Vonage has been a
great service over
the years, it is
time to part
...

In The Forum:
LNP – Local Number Portability
Topic:
Cannot port phone number to new carrier - repeated failures
On Jul 05, 2016 at 09:12:07

jbugz67 Posted:
We recently
purchased 5
Polycom VVX 300
phones from
Vonage, and have
regretted
...

In The Forum:
Vonage
Topic:
Nothing but problems with VVX300
On Apr 15, 2016 at 14:58:07

RichardPi Posted:
Hello, does
anybody recollect
how to get into
wifi password from
diggings router?
...

In The Forum:
Hard Wiring - Installation
Topic:
How to arrive at wifi password?
On Mar 31, 2016 at 02:39:07

RichardPi Posted:
Hello, does
anybody know how
to get into wifi
watchword from
home router?
...

In The Forum:
Hard Wiring - Installation
Topic:
How to be noised abroad wifi password?
On Mar 30, 2016 at 18:48:05

achow26 Posted:
BrettaMan, I am
having the same
problem. I do not
have the loopback
plug. I tried
...

In The Forum:
Hard Wiring - Installation
Topic:
Vonage issue with USTec UX-226
On Feb 16, 2016 at 14:13:37

alicesmith Posted:
I have used the
PBX phone system
in my new office.
I was very
confused about
phone
...

In The Forum:
Vonage
Topic:
IP PBX for small business
On Jan 29, 2016 at 01:49:14


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vasus
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PostPosted: Tue Jan 06, 2009 1:52 pm    Post subject: Reply with quote Back to top

Just now I have connected my laptop and my desktop to the same router VT2442 and here is the info

Desktop -> VT2442 -> Modem --- Websites dont open

Windows IP Configuration

Host Name . . . . . . . . . . . . :
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . :
IP Routing Enabled. . . . . . . . :
WINS Proxy Enabled. . . . . . . . :

Ethernet adapter Local Area Connection:

deleted to hide personal information


Laptop -> VT2442 -> Modem -- all websites work !


Windows IP Configuration

deleted to hide personal information


Ethernet adapter Local Area Connection:

deleted to hide personal information


What is the difference between these two - My laptop works and my desktop doesnt ? Sad


Last edited by vasus on Tue Jan 06, 2009 3:09 pm; edited 1 time in total
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ed56
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Posts: 832

PostPosted: Tue Jan 06, 2009 1:59 pm    Post subject: Reply with quote Back to top

I went the all knowing sage, Google and saw a lot of posts about "certain" secure sites will not open and it seems the MTU setting may be the answer (see my previous post)

What is interestng is that as the packets travel through a router they MAY grow, which would explain why you can connect at the modem but not through the router. We are ALL guessing, but worth a try.

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ed56
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PostPosted: Tue Jan 06, 2009 2:05 pm    Post subject: Reply with quote Back to top

In the linked article there is a test you can run on your pc,:

"To solve this problem you should reduce the MTU packet size on your router and or on your computer until the fragmentation stops. A simple test for MTU issues can be found here ( http://support.iprimus.com.au/static-pages/mtu-eyechart.html ), called the MTU Eyechart. The MTU Eyechart works by displaying a series of images of certain sizes, increasing down the page. If you get part way and some of the images stop loading, this should indicate what size packets are being dropped."

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vasus
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PostPosted: Tue Jan 06, 2009 2:13 pm    Post subject: Reply with quote Back to top

I really very much appreciate the help from all of you Smile
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vasus
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PostPosted: Tue Jan 06, 2009 2:16 pm    Post subject: Reply with quote Back to top

I have reduce the MTU size to 1463 on my computer ( desktop ) and now some websites have started working...

I am very happy .

Still java.com , sun.com , icicibank dont open. Let me reduce the MTU size in the router and check again .

Thanks a ton everyone !
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vasus
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PostPosted: Tue Jan 06, 2009 2:17 pm    Post subject: Reply with quote Back to top

By the way forgot to tell you

I can see till 10462
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ed56
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PostPosted: Tue Jan 06, 2009 2:22 pm    Post subject: Reply with quote Back to top

vasus wrote:
By the way forgot to tell you

I can see till 10462


Yeah, I am not sure how that test works, but sounds like you MAY be on the right track anyway

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ed56
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PostPosted: Tue Jan 06, 2009 2:31 pm    Post subject: Reply with quote Back to top

someone suggested using a ping test like:
ping yahoo.com -f -l 1492

Keep lowering the size (1492) until it no longer says "Packet needs to be fragmented but DF set". Then begin increasing the packet size from this number in small increments until you find the largest size that does not fragment. Add 28 to that number (IP/ICMP headers) to get the optimal MTU setting. For example, if the largest packet size from ping tests is 1462, add 28 to 1462 to get a total of 1490 which is the optimal MTU setting. :


C:\Documents and Settings>ping yahoo.com -f -l 1492

Pinging yahoo.com [68.180.206.184] with 1492 bytes of data:

Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.

Ping statistics for 68.180.206.184:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Documents and Settings>ping yahoo.com -f -l 1400

Pinging yahoo.com [68.180.206.184] with 1400 bytes of data:

Reply from 68.180.206.184: bytes=1400 time=73ms TTL=53
Reply from 68.180.206.184: bytes=1400 time=73ms TTL=53
Reply from 68.180.206.184: bytes=1400 time=72ms TTL=53
Reply from 68.180.206.184: bytes=1400 time=72ms TTL=53

Ping statistics for 68.180.206.184:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 72ms, Maximum = 73ms, Average = 72ms

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vasus
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PostPosted: Tue Jan 06, 2009 3:06 pm    Post subject: Reply with quote Back to top

Thanks every one . I have set my desktop's MTU to 1460 and now it works !

All these days the mistake I was doing was to change the MTU on the router , but realized it today that the MTU size had to be changed on the DESKTOP

I am very happy , all the websites work !!!!
Very Happy

Thanks again and again and again ....
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