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Segmented Answer -> Timeout while waiting for APDU id

BACnet4J general discussion
• • • TWeiss

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Hello,

i am struggling with sending segmented answers:

I implemented a "virtual" local device with some objects and testing it with various test-clients like "BrightCore BACnet Lookout" or "WAGO BACnet Configurator".

Everything is fine until I have around 300 BacNetObjects so that the answer to this request ```
Confirmed-REQ readProperty[ 1] device,1234 object-list
has to be segmented. BACnet4J sends back the first segment ``` Complex-ACK readProperty[ 1] (Message fragment 0) ``` and wait for an ACK, which is visible in wireshark (``` Segment-ACK ```), but not recognized by BACnet4J. After 3 retries i got a timeout :cry: i am debugging in eclipse alot, but i cant figure out why the Segment-ACK-Answer from my client is ignored. Any suggestions? Thank you!