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Web Applications Tables stop updating

Published date: 21 December 2018

The Web Applications Tables tab stops updating and has exclamation marks beside all values. 

Product Line
Power Monitoring Expert 7.2.x, 8.x

Web Applications "Tables"

Interference from IPv6 local area network adapters enabled on the computer.

Disable all IPv6 properties in LAN adapters.  This will require confirmation from your network department that this protocol is not being used for any of your other utilities on this server.
1.) Open LAN adapter properties in the Network and Sharing Center.
      a.) Go to Start> Control Panel
      b.) Click on Network and Sharing Center
      c.) On the left select Change adapter settings
      d.) Right click all adapters one at a time and select properties
      e.) Insure that Internet Protocol Version 6 (TCP/IPv6) is deselected for all adapters.

2.) Disable adapters that are not visible in the Network and Sharing Center
      a.) Open a command prompt window
      b.) Type ipconfig
      c.) Note the listings of adapters available.
      d.) Anything listed as ISATAP, TEREDO, or 6to4 must be disabled.  Disconnected is not sufficient.
      e.) To disable each adapter type the following lines individually and press enter.  You should receive an OK if completed correctly.
            netsh int ipv6 isatap set state disabled
            netsh int ipv6 6to4 set state disabled
            netsh interface teredo set state disabled

This should disable IPv6 on the host device and stop the IPv6 stacks from interfering with communication of the software.

Resolution 2
Modify prefix policies so that IPv4 will be preferred over IPv6
In an elevated command prompt Type:
netsh interface ipv6 show prefixpolicies

Querying active state...

Precedence  Label  Prefix
----------  -----  --------------------------------
        50      0  ::1/128
        40      1  ::/0
        30      2  2002::/16
        20      3  ::/96
        10      4  ::ffff:0:0/96
         5      5  2001::/32

Labels 3 and 4 are IP4 compatibility listings. Increasing  their precedence will cause them to be preferred over Ipv6.  Will need to set the precedence higher than label 0, that is the localhost address.

netsh interface ipv6 set prefix ::/96 60 3
netsh interface ipv6 set prefix ::ffff:0:0/96 55 4

ISATAP (Intra-Site Automatic Tunnel Addressing Protocol) is an IPv6 transition mechanism meant to transmit IPv6 packets between dual-stack nodes on top of an IPv4 network.
In computer networkingTeredo is a transition technology that gives full IPv6 connectivity for IPv6-capable hosts that are on the IPv4 internet but have no native connection to an IPv6 network.

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