Error while saving contents from share location in office 2013

Hi

We have an issues like when we open a file and save from network location in exel 2013 it is show the below error.We have bypassed the Antivirus also still we are coming across the same error.

We are using ms office 2013 std.

network location is in a netapp storage. aso the user is having modify rights in the folder.

pls let me know any fix..