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 Problem retrieving TM1 instance name wird TM1Service.getServers.dwr

Hendrik Axmann's profile image
Hendrik Axmann posted Thu January 29, 2026 03:20 AM

Hello,
I have a problem when accessing TM1web and when loading PAW dashboards. Sometimes it seems that the request

POST https://<Servername>/tm1web/dwr/call/plaincall/TM1Service.getServers.dwr

is acknowledged with “200 OK”, but the response is missing the name of the TM1 instance.

throw 'allowScriptTagRemoting is false.';
//#DWR-INSERT
//#DWR-REPLY
//#DWR-START#
(function(){
if(!window.dwr)return;
var dwr=window.dwr._[0];
dwr.engine.remote.handleCallback("2","0",["<MissingInstanceName>"]);
})();
//#DWR-END#

What is strange is that this behavior occurs sporadically, and in between there are complete responses with the correct instance name. The effects vary: sometimes logging in to TM1web is not possible, at other times the PAW dashboard cannot retrieve data from the TM1 server and shows the error message “Dataset undefined”.

Has anyone encountered this error before? Or does anyone know where the method in the DWR file gets the information "instance name" from? The file should be located at:

<PathToTM1web>\webapps\tm1web\WEB-INF\classes\com\ibm\cognos\tm1\web\services\TM1Service.class

I would be grateful for any hints.

Best regards,

Hendrik