Request to service "SFDC_REST_Service" failed: Invalid Request: Read timed out

Questions
1

Hi,

While loading the page, the below error received

Request to service “SFDC_REST_Service” failed: Invalid Request: Read timed out

Also this is happening to a user but tried with few of other users, there was no such error.

Any one has any idea on this ?

This is happening every time for the same user. (Tried to delete the cash and log-out and log-in back … but no luck)

I checked in Payload,
in Network–>XHR–>apexremote–>Headers–>Request Payload–>data[0] –>the JASON formed very well as shown in below picture.