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  1. #1

    Lightstreamer unknown error using C# client


    Can someone help me identify this error:

  2. #2
    Join Date
    Jul 2006

    The client receives no answer to a simple https request.
    This can only be an issue related with the local environment.
    Perhaps something fails in the TLS handshake.
    Do you confirm that, after 12:34:42, other connection attempts are made, all with the same outcome?

    I suppose that you have no control on the Server.
    What client SDK version are you using?
    Please try to take a client side packet capture, to see if something comes back fron the Server.

  3. #3

    I am using .NET Lightstreamer.DotNetStandard.Client (5.0.5).

    I was able to change it via ForcedTransport but I am still getting this error:

    Property serverSocketName changed:
    Property clientIp changed:
    Property serverInstanceAddress changed:
    Property realMaxBandwidth changed:
    2020-08-25 10:15:13.5568|DEBUG||IsOffline check now ...
    2020-08-25 10:15:13.6092|DEBUG|| ... online, go!
    2020-08-25 10:15:13.6092|DEBUG|lightstreamer.protocol|Create Request:
    2020-08-25 10:15:13.6092|INFO|lightstreamer.utils|Cookies to be inserted for <none>
    2020-08-25 10:15:13.6092|DEBUG||cs ---- address:,
    2020-08-25 10:15:13.6168|DEBUG||HTTP transport connection establishing (oid=4):
    LS_polling=true& ing_millis=0&LS_idle_millis=0&LS_cid=jqWtj1twChtfD xikwp1ltvcB4BJ9Ji kOj2CQf&LS_adapter_set=STREAMINGALL&LS_user=<remov ed>&LS_password=<removed>&LS_old_session=&

    2020-08-25 10:15:13.6168|DEBUG|| - target: - False(com.lightstreamer.client.transport.providers .netty.NettyFullAddress).
    2020-08-25 10:15:13.6168|DEBUG|lightstreamer.session|sessionS tatusChanged 10, 10
    2020-08-25 10:15:13.6168|DEBUG|lightstreamer.netty.pool|HTTP channel created [0f90c596, com.lightstreamer.client.transport.providers.netty .NettyFullAddress]: False
    >>>>>>>>>>>>>>>>>> CONNECTING -
    2020-08-25 10:15:13.6168|DEBUG|lightstreamer.session|Session state change (4): OFF -> CREATING
    2020-08-25 10:15:13.6168|DEBUG|lightstreamer.session| phasing : 1 - 1
    2020-08-25 10:15:13.6168|DEBUG|lightstreamer.session|Status timeout in 4000 [currentConnectTimeout] due to
    2020-08-25 10:15:13.7393|DEBUG|lightstreamer.netty.pool|HTTP channel active [0f90c596]
    2020-08-25 10:15:13.7393|DEBUG|| - acquired! 0f90c596
    2020-08-25 10:15:13.7393|DEBUG||Go with the request True
    2020-08-25 10:15:13.7393|DEBUG||Send Request Task status = RanToCompletion
    2020-08-25 10:15:13.8611|ERROR||HTTP transport error [0f90c596]
    2020-08-25 10:15:13.8611|ERROR||HTTP transport error [0f90c596]
    2020-08-25 10:15:13.8744|DEBUG|lightstreamer.netty.pool|Socke t error.
    2020-08-25 10:15:13.8744|DEBUG||Channel closed [0f90c596]
    2020-08-25 10:15:13.8744|DEBUG|lightstreamer.netty.pool|HTTP channel inactive [0f90c596]
    2020-08-25 10:15:13.8744|DEBUG|lightstreamer.netty.pool| ... False - False
    2020-08-25 10:15:13.8744|DEBUG|lightstreamer.netty.pool|Socke t Closed.
    2020-08-25 10:15:13.8744|ERROR|lightstreamer.session|Error event while CREATING reason: network.error tryRecovery=True timeLeft=15000 closedOnServer=False unableToOpen=False wsError=False
    2020-08-25 10:15:13.8744|ERROR|lightstreamer.session|Error event while CREATING reason: network.error tryRecovery=True timeLeft=15000 closedOnServer=False unableToOpen=False wsError=False
    2020-08-25 10:15:13.8833|DEBUG|lightstreamer.session|Error event for network.error while CREATING
    2020-08-25 10:15:13.8833|DEBUG|lightstreamer.session|Start new session. Cause: socket error in 0
    2020-08-25 10:15:13.8833|INFO|lightstreamer.session|Closing session network.error
    2020-08-25 10:15:13.8833|DEBUG|lightstreamer.subscribe|Subscr iptionManager sessionAlive set to false.
    2020-08-25 10:15:13.8833|INFO|lightstreamer.subscribe|Reset message handler
    2020-08-25 10:15:13.8833|DEBUG|lightstreamer.subscribe|Aborti ng pending messages
    2020-08-25 10:15:13.8833|DEBUG|lightstreamer.session|SessionM anager state change: POLLING_HTTP -> POLLING_HTTP
    2020-08-25 10:15:13.8833|DEBUG|lightstreamer.session|sessionS tatusChanged 11, 11
    2020-08-25 10:15:13.8833|DEBUG|lightstreamer.session|Session state change (4): CREATING -> SLEEP
    2020-08-25 10:15:13.8980|DEBUG|lightstreamer.session| phasing : 2 - 2
    2020-08-25 10:15:13.8980|INFO|lightstreamer.protocol|Protocol dismissed
    2020-08-25 10:15:13.8980|DEBUG|lightstreamer.session|Status timeout in 0 [currentRetryDelay] due to network.error
    >>>>>>>>>>>>>>>>>> DISCONNECTED:WILL-RETRY -
    2020-08-25 10:15:13.9610|DEBUG|lightstreamer.session|Timeout event [currentRetryDelay] while SLEEP cause=network.error
    2020-08-25 10:15:13.9610|DEBUG|lightstreamer.session|Timeout: new session
    2020-08-25 10:15:13.9610|INFO|lightstreamer.session|Closing session
    2020-08-25 10:15:13.9610|DEBUG|lightstreamer.subscribe|Subscr iptionManager sessionAlive set to false.
    2020-08-25 10:15:13.9610|INFO|lightstreamer.subscribe|Reset message handler
    2020-08-25 10:15:13.9610|DEBUG|lightstreamer.subscribe|Aborti ng pending messages
    2020-08-25 10:15:13.9610|DEBUG|lightstreamer.session|SessionM anager state change: POLLING_HTTP -> POLLING_HTTP

    Any ideas?

  4. #4
    Join Date
    Jul 2006
    I have moved this post back to the relevant thread.

    It is no surprise that, by limiting the connection to http polling nothing has changed.
    In fact, in your case, there is no answer from the Server since the initial connection, before the client ever tries websocket or http streaming.
    I see that the client receives a "Socket error" message from the low-level "DotNetty" library.

    Unfortunately, no further indication is logged.
    For this reason, if you can manage to get a packet capture, this may provide some clue.
    Otherwise, can you try a simple manual request from the same context of your application, to see what happens?
    For instance, you can just issue



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