iscsi connection always disconect

I have a iscsi connection made in the Iscsi Initiation in Windows 2008 R2 that connects to a LUN of a Synology device.

In these LUN i have sql databases.

My problem is that all morning the ISCSI connection is disconnected in these particular server.

I have another server with the same configuations but connected to a differet LUN and it is working fine without problems.

I tried everything that I can find in the internet but the issue continues...

Regards
Joel
britholAsked:
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strivoliCommented:
OK. Please check the Application but mostly the System Logs.
Check for any Warnings and/or Errors in these two Logs. Are there any during the night?
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strivoliCommented:
The Windows Logs (run eventvwr) don't suggest anything?
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britholAuthor Commented:
Couldnt find anything there...
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strivoliCommented:
Which Logs did you check?
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britholAuthor Commented:
can u give me a clue? I checked all and couldnt find anything.
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britholAuthor Commented:
the only error that I have in the event viewer is the sql server error because of the missing drive with the dbs
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strivoliCommented:
Is this a physical server or virtual? Does it use a specific card for iSCSI or does it share the NIC?
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britholAuthor Commented:
it is a physical server. and the connection is trough NIC
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strivoliCommented:
OK. Thanks. Please post make, model and driver version of the NIC.
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britholAuthor Commented:
HP NC375i Integrated Quad Port Multifunction Gigabit Server Adapter
Driver Provider: Qlogic
Driver Date: 2/17/2012
Driver Version: 4.6.12.217
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britholAuthor Commented:
Hi, any news?
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strivoliCommented:
Sorry for the delay. Will be back in about 6 hours.
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britholAuthor Commented:
OK.
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strivoliCommented:
Please consider updating the NIC driver to version "4.7.29.1101 (18 Feb 2014)".
You can download the driver from this link. Let me know how it runs.
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britholAuthor Commented:
it didnt help, because my windows version is 64bits. and the driver for 64 bits is the one that I have running in server.
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strivoliCommented:
I think you didn't even try because the link points to the 64bit driver. I gave you a suggestion: it is up to you to consider it or not.
So your reply to my suggestion might be:
a. I will consider updating, or
b. I refuse to consider updating.

The reply you gave me, AFAIK, isn't applicable because the driver is 64bit.
Please reply. Thank you.
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britholAuthor Commented:
I did download again the file that you sent the link and like in my previous reply now I am attaching the message that the driver is giving.
experts-exchange.jpg
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strivoliCommented:
I suppose your OS is W2008 R2. Please post the Screen Shot obtained with the command winver.
Thank you.
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britholAuthor Commented:
here it is. you are right it is not the windows 2008 r2... my mistake.
experts-exchange1.jpg
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strivoliCommented:
No problem... Windows 2008 is available in x86 (32bit) and x64 (64bit) architecture. Please post the Screen Shot obtained with Computer>right-click>Properties or report the architecture.
Thank you.
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britholAuthor Commented:
here is the properties
experts-exchange2.jpg
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strivoliCommented:
You can download the driver from this link. Let me know how it runs.
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britholAuthor Commented:
Hi, still not working after the update of the network driver.
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strivoliCommented:
Hi, please post the Screen Shot of your NIC similar to the one I'm attaching. Thanks.
Untitled.png
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britholAuthor Commented:
here it is.
experts-exchange3.jpg
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strivoliCommented:
The NIC has 4 ports. Can you kindly explain how these 4 ports are used?
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