I have two Windows 10 PCs and one Fedora 33 Linux machine (all physical machines) on my home wireless network, using ASUS RT-AC3200 router powered by Asuswrt Merlin version 384.13_10.
I am attempting to ssh and rdp from Windows PC 1 to Fedora machine. Neither work. PC2 can ssh and rdp to the Linux machine with no problems (rdp using xrdp with tigerVNC server on Linux)
It appears that something is preventing PC1 and Linux machine from seeing each other, but I can't put my finger on it.
Pinging the Linux machine From PC1, I get
Pinging 192.168.1.234 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Ping statistics for 192.168.1.234: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
Which indicates that the signal went out from PC1, but it received no reply from the Linux box.
Pinging PC1 from the Linux box, I get
[lith@localhost ~]$ ping 192.168.1.126 -c 4 PING 192.168.1.126 (192.168.1.126) 56(84) bytes of data. From 192.168.1.234 icmp_seq=1 Destination Host Unreachable From 192.168.1.234 icmp_seq=2 Destination Host Unreachable From 192.168.1.234 icmp_seq=3 Destination Host Unreachable From 192.168.1.234 icmp_seq=4 Destination Host Unreachable --- 192.168.1.126 ping statistics --- 4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 3109ms pipe 3
Which indicates that there is no route from Linux to PC1.
As indicated earlier, PC2 and Linux machines can ping each other, and I can establish both SSH and RDP connections from PC2 to Linux machine. furthermore, Linux machine can successfully ping most everything on the network, including devices such as a smart TVs, sound systems, garage door openers, etc- it just can't ping PC1.
EDIT1: Requested information from the comments
PC1: (cannot connect to linux box)
IP: 192.168.1.126 Netmask: 255.255.255.0 Gateway: 192.168.1.1
PC2: (can connect to linux box)
IP: 192.168.1.201 Netmask: 255.255.255.0 Gateway: 192.168.1.1
IP: 192.168.1.234 Netmask: 255.255.255.0 Gateway: 192.168.1.1
EDIT 2: PC1 is able to ping other devices on the network, including PC2. IP addresses are assigned by DHCP, via the router. The other interesting thing is that when run arp -a on the linux box, I can see PC1's IP and mac address.