Like in topic I have for few days RV50X and i have some problem with VPN Tunnel on Pfsense. Connection between mobile client and PFsense is established but i can’t connect by RDP to any Computer or even ping any hardware. It seems like something block connection. No differences using ip passthru or without ip passtrhru(dyndns). Using huawei lte modem connected to usb of pfsense conection without any problem(ping everything. RDP on all computers).
It seems that your issue was solved on this topic. Could you try to configure Tunnel-MTU, MSS Fix and Fragment on the VPN server to match the RV50X?