Azure Table Storage Unable to connect - Error on increasing load

I am using Windows Aure Website ( Reserved Instance) and doing the Inserts to an Azure table via http. ( Yes http). When i was doing load testing, foud the below error. It was like 2 hits / seconds... Not sure what is the reason?
Any thoughts? SDK issue?
HTTP_Request2_ConnectionException: Unable to connect to tcp://innovativetxtstorage.table.core.windows.net:80. Error: php_network_getaddresses: getaddrinfo failed: No such host is known.
C:\DWASFiles\Sites\innovativetxt\VirtualDirectory0\site\wwwroot\vendor\pear-pear.php.net\HTTP_Request2\HTTP\Request2\Adapter\Socket.php on line 324
>HTTP_Request2_SocketWrapper->__construct('tcp://innovative…', 10, Array)</td><td>C:\DWASFiles\Sites\innovative in C:\DWASFiles\Sites\innovativetxt\VirtualDirectory0\site\wwwroot\vendor\pear-pear.php.net\HTTP_Request2\HTTP\Request2\SocketWrapper.php
on line 116

Here is further information ...
In normal circumstance with 30 Hits per Minute to our our API.... It works fine. After that latency is too high that it gives time out. See the Attached Report..
All I am doing is reading the Azure table to verify user Loginand Password... ( Reading Same Entity Again and Again)
See teh Performance Test Report here... http://www.innovativetxt.com/BlitzPerformanceTest.pdf
My customer cannot send us more than 30 request per seconds.. we feel ourself in trouble by complains every day.
We are on reserved Instance Website URL is http://www.innovativetxt.com and we feel like latency is killing us.
1. Is it because of Aure Storage? Cannot handel load of that much?
Is it bec
( I have already turend of Tanggling, TCP 100 etc all tips implemented )
See the below error message from Log file.
[03-Aug-2013 09:37:01 UTC] PHP Fatal error: Uncaught <table style="border: 1px" cellspacing="0">
<tr><td colspan="3" style="background: #ff9999"> HTTP_Request2_ConnectionException: Unable to connect to tcp://innovativetxtstorage.table.core.windows.net:80. Error: php_network_getaddresses: getaddrinfo failed:
No such host is known. in C:\DWASFiles\Sites\innovativetxt\VirtualDirectory0\site\wwwroot\vendor\pear-pear.php.net\HTTP_Request2\HTTP\Request2\Adapter\Socket.php on line 324</td></tr>
<tr><td colspan="3" style="background-color: #aaaaaa; text-align: center; font-weight: bold;">Exception trace</td></tr>
<tr><td style="text-align: center; background: #cccccc; width:20px; font-weight: bold;">#</td><td style="text-align: center; background: #cccccc; font-weight: bold;">Function</td><td style="text-align:
center; background: #cccccc; font-weight: bold;">Location</td></tr>
<tr><td style="text-align: center;">0</td><td>HTTP_Request2_SocketWrapper->__construct('tcp://innovative…', 10, Array)</td><td>C:\DWASFiles\Sites\innovative in C:\DWASFiles\Sites\innovativetxt\VirtualDirectory0\site\wwwroot\vendor\pear-pear.php.net\HTTP_Request2\HTTP\Request2\SocketWrapper.php
on line 116

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