I am new to multichain and I am running multichain using Ubuntu 20.04. Everything is running smoothly, I even connected my blockchain with the multichain explorer 2. The thing is that I can connect to the blockchain from another machine connected to the same LAN, however when I try to connect a node that is connected to a different LAN I get the error "Couldn't connect to the seed node 192.168.10.4 on port 6819 - please check multichaind is running at that address and that your firewall settings allow incoming connections". I have disabled firewall and any kind of antiviruses on both machines. Is it a rule that I can connect to a blockchain if it is connected to the same network that my node is running? Any help regarding this would be tremendously appreciated.