yahoo email is taking too long to response on logout?

This morning i notice tha my yahoo email is taking too long to response on log out and then i get this message .

The connection has timed out
The server at us.lrd.yahoo.com is taking too long to respond

The site could be temporarily unavailable or too busy. Try again in a few
moments.
If you are unable to load any pages, check your computer's network
connection.
If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.

And i click try again it does the samething usually i have to click tryagain twice are go to my yahoo homepage and click my email and then logout again and usually after tha it logs out .

I though maybe it was because i was using open DNS on my router so i switch to dynamic again but tha didn't help .

Thanks for any help in advanced

when i ping yahoo i get this back
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\buddy>ping Yahoo!

Pinging any-fp3-real.wa1.b.yahoo.com [69.147.125.65] with 32 bytes of data:
Reply from 69.147.125.65: bytes=32 time=37ms TTL=54
Reply from 69.147.125.65: bytes=32 time=35ms TTL=54
Reply from 69.147.125.65: bytes=32 time=35ms TTL=54
Reply from 69.147.125.65: bytes=32 time=36ms TTL=54

Ping statistics for 69.147.125.65:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 35ms, Maximum = 37ms, Average = 35ms

So does tha rule out my MTU

I went into internet options and unchecked proxy and now i don't get the message but it still takes a few seconds for it to log out