Problem with instant message in clustered environment

Hello, I have some problem with Instant Message service.

We need to use it in our Production Environment (a clustered emvironment with a central instance, two dialog instances and two web dispatchers), some months ago we tested it in Development Environment (not clustered emvironment, just a single system) and it worked fine.

So I did the same configurations on Production Environment but it did not work.

But if I access on my portal (Production Env.) by the central instance (avoiding the dispatchers) the instant message service works.

I think it can be a web dispatcher's configuration problem, in its logs I found the message :

"<i>[Thr 3700] *** ERROR => htmlEncode: called with empty string [icpif.cpp 847]</i>"

I' ve repeated the same configuration done in Dev.Env. (no dispatcher) on the Prod.Env. (with 2 dispatcher), is possible that I'm missing some configurations??

Could someone helps me?

Best Regard

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