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WSAEWOULDBLOCK

Former Member
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We have installed the SAP Logon 7.20 on a Azure virtual machine in the cloud. I receive the error WSAEWOULDBLOCK when trying to connect to one of the SAP application server. Do any of you guys know if Azure is compatible with SAP Logon 7.20? Any troubleshooting steps for this particular issue would be appreciated. Thanks.

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Former Member
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WSAEWOULDBLOCK: Resource temporarily unavailable.

It might be returned from operations on nonblocking sockets that cannot be

completed immediately (for example when no data is queued to be

read from the socket).

It is a nonfatal error, and the operation should be retried later. It is normal for WSAEWOULDBLOCK to be reported as the result from calling connect on a nonblocking SOCK_STREAM socket,

since some time must elapse for the connection to be established.

Please check the configuration of your network

- failure on the DNS server

- misconfiguration of the 'hosts'

- files at your workstations that are connecting to the server, etc.

You can check if the error is not caused because of a hostname problem:

  Note 124562: Hostname resolution problems (DNS timeouts).

  Note 500235: Network Diagnosis with NIPING

First start the NIPING server on computer A (e.g., the Application

Server) with the command line:

  niping -s -I 0        (the last character is zero, not the letter O)

Then start the client (e.g. on the front-end machine) with the command:

  niping -c -H <nipingsvr> [ -B <buffersize> -L <(>

  <<)>loops> -D <delay> ]"

Other possible useful notes:

  Note 180940: Microsoft QoS support

  Note 129997: Hostname and IP address lookup

Former Member
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Please does anyone have any insight regarding this error? Thanks.

Former Member
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Please does anyone have anything to contribute to this question??