The adapters in a node can only be re-configured when they are not in use. This means, no adapter resources must be allocated via the dis_irm kernel module. To achieve this, make sure that upper layer services that use dis_irm (like dis_sisci and dis_supersockets) are stopped.

> sc stop dis_nodemgr
> sc stop dis_irm 
...
> sc start dis_irm 
...
> sc start dis_nodemgr
...

In most cases, the interconnect configuration c:\WINDOWS\system32\drvers\etc\dis\dishosts.conf is corrupted. This can be verified with the command testdishosts. It will report problems in this configuration file, as in the example below:

# testdishosts

socket member node-1_0 does not represent a physical adapter in dishosts.conf

DISHOSTS: signed32 dishostsAdapternameExists() failed

In this case, the adapter name in the socket definition was misspelled. If testdishosts reports a problem, you can either try to fix c:\WINDOWS\system32\drvers\etc\dis\dishosts.confmanually, or re-create it with the Dolphin Netwowork Configurator GUI, dis_netconfig or the command line version of the Dolphin Network Configurator, dis_mkconf.

If this does not solve the problem, please check c:\WINDOWS\system32\drvers\etc\dis\log\scinetworkmanager.log for error messages. If you can not fix the problem reported in this logfile, please contact Dolphin support providing the content of the logfile.