Can not connect to an HP 1950 (JG960A) from a different subnet

[MikeMCSE]

I have an HP 1950 switch with no added VLANs or other configuration other than setting the IP and adding a password.  The switch is at 10.0.1.106/ subnet 255.255.254.0.  From any system on that same subnet, I can ping the switch and also log into the management GUI.  We monitor our network with PRTG, it runs on a server on the server network 10.0.10.x, a firewall is segmenting the servers from the client network.  The firewall is allowing ping as well as SNMP to the switch & I can see the traffic passing through the firewall.  However, the connections fail.  I have multiple 1820 switches being monitored some on the 10.0.0.0/23 network and at 18 other locations via an MPLS circuit.  We have one other 1950 switch on the server network 10.0.10.x, it monitors correctly.  So there is something I'm missing on the problem switch.