Don't know what to tell you. I would never use Symantec so not much use to you. Aren't there exclusions?
Sorry for the trouble, may I know which Norton/Symantec product are you running? Let us know we'll check that for you! Thank you Praveen Norton Support.
NIS 21.7.0.11 The problem is not here .... the problem is at Symantec. Go here : https://community.norton.com/en/forums/nis-blocking-raxcocom !! Truly ?? PS: any interested Raxco supporters go there and help Symantec.