After configure vlan it stop pinging

i already using VLAN in my invironment and once i configured the NAS storage port 1 to use vlan it stop pinging .
i cant reach the nas with any way , no ping . no mang interface
but i still caan see it in the ARP table in the switch
the port in the switch is access port with same vlan ID as the one configured in the NAS
i am in the same VLAN as the NAS but i cant ping it any more
any help how to access the storage now ?
what if i reset the storage ? can i just rest the IPs without deleteing the data on the hard drives?

How did you configure VLANs on the EX4? I didn’t know the EX4s supported VLANs.