@Virgo Thanks so much for the quick reply. Unfortunately the Netgear is unmanaged, as it is a backup for our T2600G-28MPS, that is in service at TP-Link for some weeks now...

@Hank21 Hi I just tried to setup our new EAP650s (upgrading from CAP1750s) and have exactly the same problem with all APs on a Netgear POE Switch GS324P. The CAP1750 just worked fine for years but...