Issue with 'Destination port unreachable" when installing linux

I'm currently trying to install Arch Linux on a new disk, but I'm encountering a networking issue that I can't seem to resolve. I'm getting a "Destination Port Unreachable" error when I try to ping external addresses (e.g., Google DNS at 8.8.8.8). Here are the details: - **Connection Type**: Wired Ethernet - **Router**: I can successfully ping my router (192.168.0.1) from the Arch Linux environment. - **Current OS**: Live USB with Arch Linux - **Other OS**: On the same machine, everything works perfectly on Windows. ### Background: I previously had Kali Linux installed on this disk, but the internet suddenly stopped working entirely from one day to the next. I backed up the necessary data and formatted the disk. Now, I'm trying to install a new system, and this is the situation. ### Additional Notes: - **No NAT Issues**: Other devices, including the same machine on Windows, connect to the internet without problems. - **No DHCP Issues**: IP address and default gateway are correctly assigned. ### Current Symptoms: - Can't ping external IP addresses (e.g., 8.8.8.8) - "Destination Port Unreachable". - Local network (router ping) works fine. ### What i have tried so far: 1. **Interface Status**: Checked and the interface enp3s0 is UP and has an IP assigned (192.168.0.111). 2. **Routing Table**:

default via 192.168.0.1 dev enp3s0
    default via 192.168.0.1 dev enp3s0 proto dhcp src 192.168.0.111 metric 100
    192.168.0.0/24 dev enp3s0 proto kernel scope link src 192.168.0.111 metric 100
    192.168.0.1 dev enp3s0 proto dhcp scope link src 192.168.0.111 metric 100

3. **DNS Configuration**: Manually set DNS in /etc/resolv.conf:

nameserver 8.8.8.8
    nameserver 8.8.4.4

Restarted systemd-resolved but still no luck. 4. **Log Checks**: Reviewed journalctl -xe but didn't find any network-related errors. 5. **Firewall**: No firewall rules blocking traffic (iptables -L shows no blocks). 6. **Attempted Diagnostics**: - Tried traceroute but can't install it without internet. - Can't use arp as the command isn't available in the live environment. Any advice on what I might be missing or what additional steps I should take would be greatly appreciated. Thanks in advance.