C100 time keeps changing when connected to NVR
I'm having an annoying issue with the time setting on the Tapo C100 when connected to my NVR.
The time setting on the NVR is UTC-00 Dublin Edinburgh, Longon and DST is on. The time zone on the camera is the same UTC-00
When watching live feed the camera time is Correct for about 30 seconds then it goes an hour forward for about 2 minutes then back to the correct time for 30 seconds and keeps doing this. This is obviously screwing up any recordings as the timestamp keeps changing.
I can change the NVR time to manual and turn off DST. This fixes the time from keep changing but the camera is then an hour in front of the NVR and its out of sync with my other security cameras (which all work fine and sync with the NVR).
I can't see any DST setting on the Tapo C100 so I'm assuming it's on by default and keeps syncing with an NTP server and then gets corrected by the NVR.
If I block the NTP server on my router so the camera can't sync with it would that fix the problem? if so what is the NTP server address?
Thanks