I am new to HPE kit and am not an advanced user, so please bear with me. I will try and set out the situation as clearly as possible.
I have not been able to get femtocells to work when connected via a 1920S (in layer 2 mode). Somehow it is not allowing, in and/or out, some of the femtocell traffic. Packet capture on the directly attached firewall (a SonicWALL) shows DNS and NTP traffic to and from the devices, but the key traffic elements (e.g. 4500 (UDP) aren't getting through i.e. no sign of them on the SonicWALL as dropped packets or otherwise. The workaround has been to use a standalone 8 port switch and connect that directly to the firewall (with VLAN config. removed on the port) . One difference between these 2 very unequal switches is the 8 port device has the ability to remove ports from VLAN config. altogether i.e. not untagged, simply not a member, which I didn't think was possible on a switch supporting VLANs. The switch has 802.1q VLAN turned off, but port based VLANs on, but with no members as mentioned, so I assume it's simply acting as a 'dumb' switch. So frustrating to be honest, that a simple £25 switch can handle this so easily, but not a £700 monster.
Does anyone have any wise words or thoughts, or has encountered this type of problem before?