I can not send a file between two sessions. Both are on windows 7 and the version of spark is 2.8.3. When the file is accepted by the receiver, the sender’s session is closed and then reopened. File transfer settings are enabled in openfire
File transfer feature in Spark has degraded in 2.8.0 since introduction of newer Smack library. No fix so far. Usually it works in the same subnet, but when different subnets or NAT are introduced, it usually fails. [SPARK-1869] Degraded file transfer feature when sending files between different networks - IgniteRealtime JIRA
If you really need file transfers, you may try using 2.7.7. Release Spark 2.7.7 · igniterealtime/Spark · GitHub
Thank you! Installed in version 2.7.7 and worked perfectly