Hi Giuseppe,

Thanks for the response. Logs from a connection attempt are as follows - looks ok to my untrained eye. The connection closed message is when I stop the program from running.

7-Apr-18 16:20:45,907|INFO |L.requests |SERVER POOLED THREAD 4 |Serving request: /lightstreamer/create_session.txt --> LS_op2=create&LS_cid=jqWtj1tg4pkpW37AL3O4hwLri8L4N Cc&LS_adapter_set=FULLPORTFOLIODEMO&LS_content_len gth=50000000&LS_report_info=true on "Lightstreamer HTTP Server" from 192.168.1.131:57902
07-Apr-18 16:20:45,912|INFO |L.requests |SERVER POOLED THREAD 4 |Starting new session: S3e20a41e5537260fM8fcT2045911 (dotnet_client 2.1.2 build 1015) on "Lightstreamer HTTP Server" from 192.168.1.131:57902
07-Apr-18 16:20:45,945|INFO |L.requests |SERVER POOLED THREAD 4 |Serving request: /lightstreamer/control.txt --> LS_session=S3e20a41e5537260fM8fcT2045911&LS_op=add &LS_table=1&LS_id=item1%20item2%20item3%20item4%20 item5%20item6%20item7%20item8%20item9%20item10%20i tem11%20item12%20item13%20item14%20item15&LS_mode= MERGE&LS_schema=last_price%20time%20pct_change%20b id_quantity%20bid%20ask%20ask_quantity%20min%20max %20ref_price%20open_price%20stock_name%20item_stat us&LS_data_adapter=QUOTE_ADAPTER on "Lightstreamer HTTP Server" from 192.168.1.131:57903
07-Apr-18 16:20:45,945|INFO |L.requests |SERVER POOLED THREAD 4 |Controlling session: S3e20a41e5537260fM8fcT2045911 on "Lightstreamer HTTP Server" from 192.168.1.131:57903
07-Apr-18 16:21:06,426|INFO |streamerMonitorText|Timer-0 |Total threads = 66, Total heap = 95617024 (free = 69170296), Sessions = 3 (max = 3), New sessions = [+1, -0], Connections = 4 (max = 9), New connections = [+2, -0], In-pool threads = 22, Active threads = 0, Available threads = 22, Queued tasks = 0, Pool queue wait = 0, NIO write queue = 0, NIO write queue wait = 0, NIO write selectors = 1, NIO total selectors = 4, Subscribed items = 20 (for 27 subscriptions), Inbound throughput = 5 updates/s (pre-filtered = 5), Outbound throughput = 5.49 updates/s (4.89 kbit/s, max = 9.15), Lost updates = 0 (total = 0), Total bytes sent = 382064, Client messages throughput = 0 msgs/s (0 kbit/s, max = 0), Total messages handled = 0, Extra sleep = 0, Notify delay = 0
07-Apr-18 16:21:08,375|INFO |L.requests |PUMP POOLED THREAD 1 |Closed session S3e20a41e5537260fM8fcT2045911 with internal cause code: 38/5 (Connection interrupted by client).
07-Apr-18 16:23:06,871|INFO |streamerMonitorText|Timer-0 |Total threads = 66, Total heap = 95617024 (free = 61512656), Sessions = 2 (max = 3), New sessions = [+0, -1], Connections = 2 (max = 9), New connections = [+0, -2], In-pool threads = 22, Active threads = 0, Available threads = 22, Queued tasks = 0, Pool queue wait = 0, NIO write queue = 0, NIO write queue wait = 0, NIO write selectors = 1, NIO total selectors = 4, Subscribed items = 5 (for 12 subscriptions), Inbound throughput = 0.5 updates/s (pre-filtered = 0.5), Outbound throughput = 0.99 updates/s (0.94 kbit/s, max = 9.15), Lost updates = 0 (total = 0), Total bytes sent = 389584, Client messages throughput = 0 msgs/s (0 kbit/s, max = 0), Total messages handled = 0, Extra sleep = 0, Notify delay = 0
07-Apr-18 16:25:07,295|INFO |streamerMonitorText|Timer-0 |Total threads = 66, Total heap = 95617024 (free = 54038512), Sessions = 2 (max = 3), New sessions = [+0, -0], Connections = 2 (max = 9), New connections = [+0, -0], In-pool threads = 22, Active threads = 0, Available threads = 22, Queued tasks = 0, Pool queue wait = 0, NIO write queue = 0, NIO write queue wait = 0, NIO write selectors = 1, NIO total selectors = 4, Subscribed items = 5 (for 12 subscriptions), Inbound throughput = 0.5 updates/s (pre-filtered = 0.5), Outbound throughput = 0.99 updates/s (0.95 kbit/s, max = 9.15), Lost updates = 0 (total = 0), Total bytes sent = 396456, Client messages throughput = 0 msgs/s (0 kbit/s, max = 0), Total messages handled = 0, Extra sleep = 0, Notify delay = 0
07-Apr-18 16:27:07,823|INFO |streamerMonitorText|Timer-0 |Total threads = 67, Total heap = 95617024 (free = 72987440), Sessions = 2 (max = 3), New sessions = [+0, -0], Connections = 2 (max = 9), New connections = [+0, -0], In-pool threads = 22, Active threads = 0, Available threads = 22, Queued tasks = 0, Pool queue wait = 0, NIO write queue = 0, NIO write queue wait = 0, NIO write selectors = 1, NIO total selectors = 4, Subscribed items = 5 (for 12 subscriptions), Inbound throughput = 0.5 updates/s (pre-filtered = 0.5), Outbound throughput = 1 updates/s (0.87 kbit/s, max = 9.15), Lost updates = 0 (total = 0), Total bytes sent = 403546, Client messages throughput = 0 msgs/s (0 kbit/s, max = 0), Total messages handled = 0, Extra sleep = 0, Notify delay = 0
07-Apr-18 16:29:08,190|INFO |streamerMonitorText|Timer-0 |Total threads = 66, Total heap = 95617024 (free = 65416824), Sessions = 2 (max = 3), New sessions = [+0, -0], Connections = 2 (max = 9), New connections = [+0, -0], In-pool threads = 22, Active threads = 0, Available threads = 22, Queued tasks = 0, Pool queue wait = 0, NIO write queue = 0, NIO write queue wait = 0, NIO write selectors = 1, NIO total selectors = 4, Subscribed items = 5 (for 12 subscriptions), Inbound throughput = 0.5 updates/s (pre-filtered = 0.5), Outbound throughput = 1 updates/s (0.9 kbit/s, max = 9.15), Lost updates = 0 (total = 0), Total bytes sent = 410522, Client messages throughput = 0 msgs/s (0 kbit/s, max = 0), Total messages handled = 0, Extra sleep = 0, Notify delay = 0
07-Apr-18 16:31:08,654|INFO |streamerMonitorText|Timer-0 |Total threads = 66, Total heap = 95617024 (free = 58006488), Sessions = 2 (max = 3), New sessions = [+0, -0], Connections = 2 (max = 9), New connections = [+0, -0], In-pool threads = 22, Active threads = 0, Available threads = 22, Queued tasks = 0, Pool queue wait = 0, NIO write queue = 0, NIO write queue wait = 0, NIO write selectors = 1, NIO total selectors = 4, Subscribed items = 5 (for 12 subscriptions), Inbound throughput = 0.5 updates/s (pre-filtered = 0.5), Outbound throughput = 1 updates/s (0.83 kbit/s, max = 9.15), Lost updates = 0 (total = 0), Total bytes sent = 417384, Client messages throughput = 0 msgs/s (0 kbit/s, max = 0), Total messages handled = 0, Extra sleep = 0, Notify delay = 0
07-Apr-18 16:33:09,247|INFO |streamerMonitorText|Timer-0 |Total threads = 66, Total heap = 95617024 (free = 76763808), Sessions = 2 (max = 3), New sessions = [+0, -0], Connections = 2 (max = 9), New connections = [+0, -0], In-pool threads = 22, Active threads = 0, Available threads = 22, Queued tasks = 0, Pool queue wait = 0, NIO write queue = 0, NIO write queue wait = 0, NIO write selectors = 1, NIO total selectors = 4, Subscribed items = 5 (for 12 subscriptions), Inbound throughput = 0.49 updates/s (pre-filtered = 0.49), Outbound throughput = 0.99 updates/s (0.94 kbit/s, max = 9.15), Lost updates = 0 (total = 0), Total bytes sent = 424446, Client messages throughput = 0 msgs/s (0 kbit/s, max = 0), Total messages handled = 0, Extra sleep = 0, Notify delay = 0
07-Apr-18 16:35:09,592|INFO |streamerMonitorText|Timer-0 |Total threads = 66, Total heap = 95617024 (free = 69219088), Sessions = 2 (max = 3), New sessions = [+0, -0], Connections = 2 (max = 9), New connections = [+0, -0], In-pool threads = 22, Active threads = 0, Available threads = 22, Queued tasks = 0, Pool queue wait = 0, NIO write queue = 0, NIO write queue wait = 0, NIO write selectors = 1, NIO total selectors = 4, Subscribed items = 5 (for 12 subscriptions), Inbound throughput = 0.5 updates/s (pre-filtered = 0.5), Outbound throughput = 1 updates/s (0.79 kbit/s, max = 9.15), Lost updates = 0 (total = 0), Total bytes sent = 431280, Client messages throughput = 0 msgs/s (0 kbit/s, max = 0), Total messages handled = 0, Extra sleep = 0, Notify delay = 0
07-Apr-18 16:36:05,305|INFO |L.requests |SERVER POOLED THREAD 5 |Serving request: /lightstreamer/create_session.txt --> LS_op2=create&LS_cid=jqWtj1tg4pkpW37AL3O4hwLri8L4N Cc&LS_adapter_set=FULLPORTFOLIODEMO&LS_content_len gth=50000000&LS_report_info=true on "Lightstreamer HTTP Server" from 192.168.1.131:58073
07-Apr-18 16:36:05,306|INFO |L.requests |SERVER POOLED THREAD 5 |Starting new session: S7a6355c76c631370M8fcT3605306 (dotnet_client 2.1.2 build 1015) on "Lightstreamer HTTP Server" from 192.168.1.131:58073
07-Apr-18 16:36:30,048|INFO |L.requests |SERVER POOLED THREAD 5 |Serving request: /lightstreamer/control.txt --> LS_session=S7a6355c76c631370M8fcT3605306&LS_op=add &LS_table=1&LS_id=item1%20item2%20item3%20item4%20 item5%20item6%20item7%20item8%20item9%20item10%20i tem11%20item12%20item13%20item14%20item15&LS_mode= MERGE&LS_schema=last_price%20time%20pct_change%20b id_quantity%20bid%20ask%20ask_quantity%20min%20max %20ref_price%20open_price%20stock_name%20item_stat us&LS_data_adapter=QUOTE_ADAPTER on "Lightstreamer HTTP Server" from 192.168.1.131:58075
07-Apr-18 16:36:30,049|INFO |L.requests |SERVER POOLED THREAD 5 |Controlling session: S7a6355c76c631370M8fcT3605306 on "Lightstreamer HTTP Server" from 192.168.1.131:58075
07-Apr-18 16:37:00,217|INFO |L.requests |PUMP POOLED THREAD 1 |Closed session S7a6355c76c631370M8fcT3605306 with internal cause code: 38/5 (Connection interrupted by client).