I am using CRM 2015 which sits on one server(windows server 2012 R2) and my SQL 2014(windows server 2012 R2) server resides on other server - Report server resides on SQL server. Previously i was using CRM 2013 and SQL (forgot the version!) on the same server. Then the network administrator upgraded it to 2015 and separated the CRM and SQL to different servers. It is after this, I got the following error when i tried to run the SSRS reports which i created.
There are basically two projects I did,
proj 1) Created custom SSRS reports (Fetch xml based) for quotes and saved the RDL files within Workplace->Reports section in CRM
proj 2) Created custom SSRS reports (Fetch xml based) for order and saved these files on Report server. Wrote workflow code which has some functionality to fetch these reports from report server along with data from database and generate PDF's so that the sales team can save them.
These were working fine until the separation of servers happened. After the servers were moved, the follwoing isues happen.
Issues caused now:
Case1 (proj 1): While checking the quote reports whether they are able to run from CRM after this setup change happened, none of the reports were genearted. I checked the same report in Visual studio 2008 from where i created them, it works fine there with the same connection string that talks to the new crm server. when i previewed the report, it is working fine. The same report when saved within CRM was not working. Then I checked to the default or standard reports whether they were working. But even they didnt work. So after this only I got to know there has been issue in the way that servers has been split and some configuation problem might be there.
I checked many forums and tried many things they suggested. But still in vain . Following is the error I get

I get "Reporting Error: The report cannot be displayed (isProcessingAborted)" . when i click 'Try again', it shows "Invalid Argument".
If I get to know about the solution for this, then I can proceed with the second issue which is caused in rdl fiels saved in report server.
Please help me on this as it is of high priority in my company because they are not able to generate any reports for clients.