Hey Daniel.  Good day! Your method given works perfectly, I managed to traced the network port that causes network interruption. Apparently, That network port was connected to a Wireless Router that acted as a network switch. After replacing it with a standalone network switch the network resume to normal without any interruption after monitoring it for 2 weeks.  Thanks & Regards
Dear Expert.  Recently, I noticed the internet connection within my organization keep interrupted(suddenly no internet) and it impacted all the users with no internet connection.  From my workaround, I found after i restarted the Dell Switches and the internet connection will resumed.    Anyone encounter this before? Is there anything i miss out? 
No internet network due to DELL DGS-3120-24TC switch