RDP/SSH connection dropping every 10 seconds between VLANS

[coolkid99]

Hello. I am new to home networking and im having an issue where RDP/SSH connections work, but disconnect every 10-30 seconds while trying to remote in from a device on VLAN A to VLAN B on the same LAN. These vlans are on a different subnet but connected to the same switch. The connection will work totally fine if I have them on the same vlan. The firewall logs do not say anything is being blocked, so I think its some sort of a routing issue but I'm new and not sure where to start. I should mention these VLANS are isolated from one another (since on is a DMZ) except for RDP and ICMP from VLAN A > B.

I discovered this thread (https://forum.opnsense.org/index.php?topic=22955.0) where this guy was able to solve it by changing gateways to his switch, but im unsure where or how to do that. I'm pretty new so please let me know if I need to provide further information.

[Patrick M. Hausen]

You probably have a case of asymmetric routing. Could you provide a diagram of your network and all systems involved? Please include all IP addresses and the netmasks of the respective VLANs. Posting private IP addresses does not give anyone an attack vector, it's perfectly OK.

Kind regards,
Patrick

[coolkid99]

You probably have a case of asymmetric routing. Could you provide a diagram of your network and all systems involved? Please include all IP addresses and the netmasks of the respective VLANs. Posting private IP addresses does not give anyone an attack vector, it's perfectly OK.

Kind regards,
Patrick

Hey, sorry for the late reply.

I attached a basic diagram here. If I need to expand any info let me know. After further testing this issue applies to any pass rules i make for http, ssh and rdp. My hardware for the opnsense is the exact same as yours.

[coolkid99]

UPDATE: The machine had a wifi adapter with a wifi connection that was left on, causing asymmetrical routing.