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Former Member

Wireless LAN connection lost

Hello!

We have this problem for quite a long time now: fork lifter using a wireless terminal pc are losing their connection to the wireless lan when driving through our company. What I figured out so far is that "roaming" isn´t working perfectly. If I run a ping for a few minutes, SAP GUI loses the connection as soon as two pings are missing. When the overall network connection is back after these two missing pings everything is working again, with the exception of SAP GUI. Windows is working, network is working, Ping is working, only SAP GUI has lost the entire session. Why is SAP GUI so ****?

Thanks for any help!

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3 Answers

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    Former Member
    Jul 16, 2009 at 06:26 PM

    Hello,

    The operating system informs the SAP GUI that it is no longer connected. That is why you get the pop-up message WSAECONNREST:connection reset by peer. Note that it is possible that the users SAP sessions can still be alive on server until the session is killed by the profile parameters disp/keepalive and rdisp/keepalive_timeout. The SAP GUI as you stated is not tolerant for IP drops. I would recommend you use SAP Mobile which uses stateless connections through a browser or SAP Console that uses Telnet. That way you can enter a dead zone without losing your connections for RF and Fork-lift units.

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    Former Member
    Jul 17, 2009 at 02:34 PM

    Thanks for your answer! We haven´t used a browser-based solution yet. Question is if it is still possible to add SAP Mobile to our existing system or if this is too complicated and too expensive to upgrade to this solution. Right now we are in phase 5 "optimizing"...

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    • Former Member Former Member

      Hello,

      I have a SAP GUI for HTML running now 😊 But the forklift driver is complaining a bit about the overall worse programm performance.... he is scanning barcodes. With standard SAP GUI he was able to scan 2 barcodes a seconds. Now he needs to wait 2-3 seconds between two scans. I think this is because the browser is handling the requests different and sends out all data after every single click or scan. SAP GUI seems to wait a bit and lets the input work first, then later sends all commands within a paket. Hard to explain... but: is there a way to optimize the HTML GUI?

      Thanks for any help!

  • Nov 01, 2013 at 07:48 AM

    If any of you on classic GUI still check if a solution like below works for you ?

    http://scn.sap.com/community/gui/blog/2013/11/01/avoid-sap-gui-disconnection-on-wifi-network

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