Kindly note that i am running PRTG V 8.3.1 since almost 4 years and recently accessing and working using its web interface is very slow. PRTG is running on a stand alone powerful dell server. Currently there is around 7000 sensors operational and it use to be fast even with this number of sensors. I checked the log file and it is not showing any error related to this behavior.
Kindly share with me your thoughts of what might be the reason behind this problem.