Linux KVM Router stopped pinging LAN devices

Job ID: 37836713

Budget: $10 – $30 AUD

I'm currently experiencing an issue with my Linux KVM router. For some reason, it has stopped pinging LAN devices and I'm unable to figure out why. The ISP's router is set in Bridge mode, and interestingly, I have not made any changes to the router settings prior to this issue. The Linux distribution in use is Mint 21.3 Virginia Cinnamon.

I am in need of a Linux professional who can help diagnose and resolve this issue.

Required expertise:
- Perform root cause analysis of the issue
- Suggest and implement effective solutions
- Thorough understanding of Linux networking and KVM
- Deep knowledge of Linux distributions, primarily Mint 21.3 Virginia Cinnamon
- Substantial experience with KVM router configurations (Bridge mode) would be preferred

The objective is to restore the normal function of the KVM Router and ensure its stability for future use. I'm expecting minimal downtime during this troubleshooting process. Please only bid if you meet the above mentioned skill set and have the capability to fix this issue quickly and efficiently.
Network topology in the attachment.

Do not offer your work over the project budget.