I have had PRTG installed for a number of years and have been upgrading with each new version. All of the switchports that were created a while back look like this "(006) Fa0/6 Fa0/6" or if they have a custom description "(007) Fa0/7 Server123". In the SNMP compatibility options, I have the Port name template set as ([port]) [ifname] [ifalias].
Now, when I run an auto-discovery, it will try to create new entries for all of the ports without a custom description, like "(006) Fa0/6 FastEthernet0/6". It doesn't recognize the port "(006) Fa0/6 Fa0/6" as being the same one, even with Port Name Update set to "Automatic sensor name update".
Any ideas of what i can change so that it doesn't try to create new sensors for all of the existing sensors when I run auto-discover?