Operation timed out error when sending http request

Hi,

When sending a httprequest I get Timeout error,this occurs especially when after sending a request to upload(Post) to server and then trying to retrieve (GET) Data from website in navision 2018.

The process stops at HTTPSENDMESSAGE and error is displayed once timeout is reached, tried increasing the session time but still fails.

It occurs only in the sequence as mentioned above , not when get is used directly, it also does happen when servicetier is restarted. Not sure of the cause.

Could someone provide a solution pls.

Thanks in advance