Clients showing Inactive in TASK SERVER. Attached the logs. Please help
TASK SERVER LOGS
<event date='04/27/2016 06:38:03.5170000 -07:00' severity='2' hostName='TASKSERVER' source='AeXNetworkTransport' module='AeXNetComms.dll' process='AeXNSAgent.exe' pid='51440' thread='9040' tickCount='2011116373'>
<![CDATA[Post to 'https://NS/Altiris/TaskManagement/CTAgent/GetClientTaskServers.aspx?resourceGuid=e47e5386-9a05-43df-84df-439f5e1121e9' failed: HTTP status: 403. Invalid data received in HTTP response. Expected 1233 bytes, received 0 (0x8007000D)]]>
</event>
<event date='04/27/2016 06:38:03.5170000 -07:00' severity='2' hostName='TASKSERVER' source='AeXNetworkTransport::raw_Post' module='AeXNetComms.dll' process='AeXNSAgent.exe' pid='51440' thread='9040' tickCount='2011116373'>
<![CDATA[HTTP status: 403. Invalid data received in HTTP response. Expected 1233 bytes, received 0 (0x8007000D)]]>
</event>
<event date='04/27/2016 06:38:03.5170000 -07:00' severity='2' hostName='TASKSERVER' source='Client Task Agent' module='client task agent.dll' process='AeXNSAgent.exe' pid='51440' thread='9040' tickCount='2011116373'>
<![CDATA[Failed to call web interface by url [https://NS/Altiris/TaskManagement/CTAgent/GetClientTaskServers.aspx?resourceGuid=e47e5386-9a05-43df-84df-439f5e1121e9].]]>
</event>
<event date='04/27/2016 06:38:03.5480000 -07:00' severity='4' hostName='TASKSERVER' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='51440' thread='18868' tickCount='2011116404'>
<![CDATA[Speed test for 'HTTPS://NS/Altiris/NS/Agent/ConnectionTest.asp' failed, speed iz zero]]>
</event>
<event date='04/27/2016 06:38:03.5480000 -07:00' severity='4' hostName='TASKSERVER' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='51440' thread='18868' tickCount='2011116404'>
<![CDATA[Server down [0x00000000]: https://NS:443:{B81D1ABF-D418-4561-B9A5-BB71CEA8AE84}]]>
</event>
<event date='04/27/2016 06:39:03.9810000 -07:00' severity='2' hostName='TASKSERVER' source='AeXNetworkTransport' module='AeXNetComms.dll' process='AeXNSAgent.exe' pid='51440' thread='9040' tickCount='2011176839'>
<![CDATA[Post to 'https://NS/Altiris/TaskManagement/CTAgent/GetClientTaskServers.aspx?resourceGuid=e47e5386-9a05-43df-84df-439f5e1121e9' failed: HTTP status: 403. Invalid data received in HTTP response. Expected 1233 bytes, received 0 (0x8007000D)]]>
</event>
<event date='04/27/2016 06:39:03.9810000 -07:00' severity='4' hostName='TASKSERVER' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='51440' thread='18868' tickCount='2011176839'>
<![CDATA[Speed test for 'HTTPS://NS/Altiris/NS/Agent/ConnectionTest.asp' failed, speed iz zero]]>
</event>
<event date='04/27/2016 06:39:03.9810000 -07:00' severity='2' hostName='TASKSERVER' source='AeXNetworkTransport::raw_Post' module='AeXNetComms.dll' process='AeXNSAgent.exe' pid='51440' thread='9040' tickCount='2011176839'>
<![CDATA[HTTP status: 403. Invalid data received in HTTP response. Expected 1233 bytes, received 0 (0x8007000D)]]>
</event>
<event date='04/27/2016 06:39:03.9810000 -07:00' severity='4' hostName='TASKSERVER' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='51440' thread='18868' tickCount='2011176839'>
<![CDATA[Server down [0x00000000]: https://NS:443:{B81D1ABF-D418-4561-B9A5-BB71CEA8AE84}]]>
</event>
<event date='04/27/2016 06:39:03.9810000 -07:00' severity='2' hostName='TASKSERVER' source='Client Task Agent' module='client task agent.dll' process='AeXNSAgent.exe' pid='51440' thread='9040' tickCount='2011176839'>
<![CDATA[Failed to call web interface by url [https://NS/Altiris/TaskManagement/CTAgent/GetClientTaskServers.aspx?resourceGuid=e47e5386-9a05-43df-84df-439f5e1121e9].]]>
</event>
<event date='04/27/2016 06:41:04.5680000 -07:00' severity='2' hostName='TASKSERVER' source='AeXNetworkTransport' module='AeXNetComms.dll' process='AeXNSAgent.exe' pid='51440' thread='9040' tickCount='2011297427'>
<![CDATA[Post to 'https://NS/Altiris/TaskManagement/CTAgent/GetClientTaskServers.aspx?resourceGuid=e47e5386-9a05-43df-84df-439f5e1121e9' failed: HTTP status: 403. Invalid data received in HTTP response. Expected 1233 bytes, received 0 (0x8007000D)]]>
</event>
<event date='04/27/2016 06:41:04.5680000 -07:00' severity='2' hostName='TASKSERVER' source='AeXNetworkTransport::raw_Post' module='AeXNetComms.dll' process='AeXNSAgent.exe' pid='51440' thread='9040' tickCount='2011297427'>
<![CDATA[HTTP status: 403. Invalid data received in HTTP response. Expected 1233 bytes, received 0 (0x8007000D)]]>
</event>
<event date='04/27/2016 06:41:04.5680000 -07:00' severity='2' hostName='TASKSERVER' source='Client Task Agent' module='client task agent.dll' process='AeXNSAgent.exe' pid='51440' thread='9040' tickCount='2011297427'>
<![CDATA[Failed to call web interface by url [https://NS/Altiris/TaskManagement/CTAgent/GetClientTaskServers.aspx?resourceGuid=e47e5386-9a05-43df-84df-439f5e1121e9].]]>
</event>
<event date='04/27/2016 06:41:04.5990000 -07:00' severity='4' hostName='TASKSERVER' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='51440' thread='18868' tickCount='2011297459'>
<![CDATA[Speed test for 'HTTPS://NS/Altiris/NS/Agent/ConnectionTest.asp' failed, speed iz zero]]>
</event>
<event date='04/27/2016 06:41:04.5990000 -07:00' severity='4' hostName='TASKSERVER' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='51440' thread='18868' tickCount='2011297459'>
<![CDATA[Server down [0x00000000]: https://NS:443:{B81D1ABF-D418-4561-B9A5-BB71CEA8AE84}]]>
NOTIFICATION SERVER LOGS
Post to 'https://NS/Altiris/TaskManagement/CTAgent/GetClientTaskServers.aspx?resourceGuid=4578f920-2266-4182-b2d1-86e73dada204' failed: HTTP status: 403. Invalid data received in HTTP response. Expected 5625 bytes, received 0 (0x8007000D)
CLIENT AGENT LOGS:
</event>
<event date='04/27/2016 19:13:58.1230000 +05:30' severity='2' hostName='XXXXX' source='Client Task Agent' module='Client Task Agent.dll' process='AeXNSAgent.exe' pid='7096' thread='1100' tickCount='4117781'>
<![CDATA[Failed to call web interface by url [https://TASKSERVER:443/Altiris/ClientTaskServer/Register.aspx?resourceGuid=969558ac-6ca6-4e19-9499-abad6c77d702&crc=00070005000B068A&lastResort=true].]]>
</event>
<event date='04/27/2016 19:13:58.1290000 +05:30' severity='2' hostName='XXXXX' source='Client Task Agent' module='Client Task Agent.dll' process='AeXNSAgent.exe' pid='7096' thread='1100' tickCount='4117796'>
<![CDATA[Could not register using "https://TASKSERVER:443/Altiris/ClientTaskServer/Register.aspx?resourceGuid=969558ac-6ca6-4e19-9499-abad6c77d702&crc=00070005000B068A&lastResort=true"]]>
</event>
<event date='04/27/2016 19:13:58.1310000 +05:30' severity='4' hostName='XXXXX' source='Client Task Agent' module='Client Task Agent.dll' process='AeXNSAgent.exe' pid='7096' thread='1100' tickCount='4117796'>
<![CDATA[An attempt to register on Task Server [TASKSERVER] over [https] completed with status [FAILED (may retry)].]]>
</event>
<event date='04/27/2016 19:13:58.1330000 +05:30' severity='4' hostName='XXXXX' source='Client Task Agent' module='Client Task Agent.dll' process='AeXNSAgent.exe' pid='7096' thread='1100' tickCount='4117796'>
<![CDATA[Attempting to register on Task Server [TASKSERVER] over [http].]]>
</event>
<event date='04/27/2016 19:13:58.1390000 +05:30' severity='4' hostName='XXXXX' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='7096' thread='5356' tickCount='4117796'>
<![CDATA[Speed test for 'HTTPS://TASKSERVER.com:443/' failed, speed iz zero]]>
</event>
<event date='04/27/2016 19:13:58.1400000 +05:30' severity='4' hostName='XXXXX' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='7096' thread='5356' tickCount='4117796'>
<![CDATA[Server down [0x00000000]: https://TASKSERVER.com:443:{E5337358-2FDF-4587-B99A-CAD08DC5E947}]]>
</event>
<event date='04/27/2016 19:13:58.1690000 +05:30' severity='2' hostName='XXXXX' source='AeXNetworkTransport' module='AeXNetComms.dll' process='AeXNSAgent.exe' pid='7096' thread='1100' tickCount='4117828'>
<![CDATA[Post to 'http://TASKSERVER:80/Altiris/ClientTaskServer/Register.aspx?resourceGuid=969558ac-6ca6-4e19-9499-abad6c77d702&crc=00070005000B068A&lastResort=true' failed: HTTP status: 403. Invalid data received in HTTP response. Expected 1233 bytes, received 0 (0x8007000D)]]>
</event>
<event date='04/27/2016 19:13:58.1700000 +05:30' severity='2' hostName='XXXXX' source='AeXNetworkTransport::raw_Post' module='AeXNetComms.dll' process='AeXNSAgent.exe' pid='7096' thread='1100' tickCount='4117828'>
<![CDATA[HTTP status: 403. Invalid data received in HTTP response. Expected 1233 bytes, received 0 (0x8007000D)]]>
</event>
<event date='04/27/2016 19:13:58.1710000 +05:30' severity='2' hostName='XXXXX' source='Client Task Agent' module='Client Task Agent.dll' process='AeXNSAgent.exe' pid='7096' thread='1100' tickCount='4117828'>
<![CDATA[Failed to call web interface by url [http://TASKSERVER:80/Altiris/ClientTaskServer/Register.aspx?resourceGuid=969558ac-6ca6-4e19-9499-abad6c77d702&crc=00070005000B068A&lastResort=true].]]>
</event>
<event date='04/27/2016 19:13:58.1820000 +05:30' severity='2' hostName='XXXXX' source='Client Task Agent' module='Client Task Agent.dll' process='AeXNSAgent.exe' pid='7096' thread='1100' tickCount='4117843'>
<![CDATA[Could not register using "http://TASKSERVER:80/Altiris/ClientTaskServer/Register.aspx?resourceGuid=969558ac-6ca6-4e19-9499-abad6c77d702&crc=00070005000B068A&lastResort=true"]]>
</event>
<event date='04/27/2016 19:13:58.1830000 +05:30' severity='4' hostName='XXXXX' source='Client Task Agent' module='Client Task Agent.dll' process='AeXNSAgent.exe' pid='7096' thread='1100' tickCount='4117843'>
<![CDATA[An attempt to register on Task Server [TASKSERVER] over [http] completed with status [FAILED (may retry)].]]>
</event>
<event date='04/27/2016 19:13:58.2660000 +05:30' severity='4' hostName='XXXXX' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='7096' thread='5356' tickCount='4117921'>
<![CDATA[Speed test for 'HTTPS://TASKSERVER:443/' failed, speed iz zero]]>
</event>
<event date='04/27/2016 19:13:58.2680000 +05:30' severity='4' hostName='XXXXX' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='7096' thread='5356' tickCount='4117921'>
<![CDATA[Server down [0x00000000]: https://TASKSERVER:443:{041B0578-B1E1-4A46-ADF7-FE4EA68C3222}]]>
</event>
<event date='04/27/2016 19:13:58.2940000 +05:30' severity='4' hostName='XXXXX' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='7096' thread='5356' tickCount='4117953'>
<![CDATA[Unknown server, fake speed test for 'HTTP://TASKSERVER:80/' is 1048576.]]>
</event>
<event date='04/27/2016 19:13:58.2950000 +05:30' severity='4' hostName='XXXXX' source='NetworkMonitor' module='AeXNetMon.dll' process='AeXNSAgent.exe' pid='7096' thread='5356' tickCount='4117953'>
<![CDATA[Server up [0x00000001]: http://TASKSERVER:80:{29D85B0A-6E9B-4D98-AE0F-A81C3FDF2CBD}]]>
</event>