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woogony

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4 years ago

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woogony

1 Rookie

3 Posts

0

182880

April 20th, 2018 11:00

Using virtual console, Network connection has dropped

I try to enter our server using Virtual console,
but problem comes up.
'The viewer has terminated
Reason : The network connection has been dropped.'

 

I used well virtual console until yesterday..
but, the error message pop up today

 

 
in all server models (R620, R630, R710 ... ) and both iDRAC version (iDRAC7 and iDRAC8), 
There is a same error.

 

 
additionally, If using my colleague's computer, it works well.
i think there is a problem in my computer.. but i don't know what problem is...

 

 
i try below various solutions
- reset idrac
- adjusting network configuration (auto negotiation...)
- etc (i'm searching about this problem)
 
 
I use macbook.

 

please tell me how the problem fix.
Thanks,
  • 166909

    0

    Posted April 30th, 2018 01:00

    Same problem for me.

    My last action before it stops working was updating Java on my macbook...

    Any solution ?

  • erictech

    1 Rookie

    4 Posts

    166426

    0

    Posted May 10th, 2018 13:00

    Same here. It's definitely a Java security issue. However, not sure who is responsible to fix it...Dell or Oracle?

    I used to be able to find older versions of Java and re-install them as a workaround, but it seems they have made this nearly impossible. 

  • erictech

    1 Rookie

    4 Posts

    166421

    7

    Posted May 10th, 2018 14:00

    found it. try this: http://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html

    i installed jre 8 update 162 and now the iDRAC virtual console is working again!

    of course, this version won't have the latest security updates.

    i noticed that my windows firewall needed access again, so perhaps that's the problem with the latest version? maybe it changed executable names or something? i might look into that further.

  • ITGuyFromIA

    1 Message

    159110

    0

    Posted July 11th, 2018 13:00

    I ran into this issue last night, this thread helped get me out of a jam.

    I did have to login to an oracle account (after first creating one) to download them, but the link you provided worked wonderfully.

    Thanks

  • C-GO

    1 Message

    124157

    15

    Posted July 15th, 2018 15:00

    The issue was definitely caused by the Java update.  They've added a disablement of the 3DES_EDE_CBC TLS algorithm.  I was able to determine this by comparing the java.security files between a known working client system on an older version (161) and an up to date system (171).

    Older (161):
    jdk.tls.disabledAlgorithms=SSLv3, RC4, MD5withRSA, DH keySize < 1024, \
     EC keySize < 224, DES40_CBC, RC4_40

    Newer (171):
    jdk.tls.disabledAlgorithms=SSLv3, RC4, MD5withRSA, DH keySize < 1024, \
     EC keySize < 224, DES40_CBC, RC4_40, 3DES_EDE_CBC

    If you search for the java.security files located in lib/security for each installation, you can comment the existing section then copy/paste without the algorithm:

    Example Code:
    #jdk.tls.disabledAlgorithms=SSLv3, RC4, MD5withRSA, DH keySize < 1024, \
    # EC keySize < 224, DES40_CBC, RC4_40, 3DES_EDE_CBC
    jdk.tls.disabledAlgorithms=SSLv3, RC4, MD5withRSA, DH keySize < 1024, \
    EC keySize < 224, DES40_CBC, RC4_40

    Note: You may have to update multiple files if you've installed Java for 32 and 64-bit platforms.

    Save your file(s), close and re-open your browsers, and everything tests out fine.

    Enjoy, and be sure to tip your waitress!! :-)

    -C-GO

  • edigital

    1 Message

    122807

    0

    Posted July 25th, 2018 02:00

    Hello,

    The newest iDRAC update solved my problem: 2.60.60.60

    Regards,
    Csabi

  • kkaushal17

    1 Message

    95432

    0

    Posted August 7th, 2018 00:00

    Kudos!!! 
    It worked like charm:Smile:

  • oRAirwolf

    1 Rookie

    51 Posts

    93261

    0

    Posted August 18th, 2018 15:00

    @C-GO

    Thank you sooooooooooooooooooooo much for this!!!  I have three R420's that I keep on iDRAC 1.66.65 because I use them in my office and the fan curves changed when Dell upgraded to iDRAC 8 2.xx.  They are much, much louder on newer versions.  That latest Java update made it where I had a dedicated VM with an older version of Java installed just so I could run iDRAC.  You have just made my life a lot easier!

  • sebastian950

    1 Message

    151896

    0

    Posted August 23rd, 2018 02:00

    WORKING!!!!

  • PatrickGx

    3 Posts

    79246

    0

    Posted August 24th, 2018 03:00

    Hi,

    I got the same problem when I launched the Virtual console, after the iDRAC8 update to 2.60.60.60 and Bios 2.8.0 of my 4 Dell R630 servers:

    'The viewer has terminated
     The network connection has been dropped.'

    I installed Jre 8 update 172 and now the iDRAC virtual console work again.