NIC offloading fix

[rcastley]

🛑 New scripts must first be submitted to ProxmoxVED for testing.
PRs for new scripts that skip this process will be closed.

---

✍️ Description

Helper script based on the fix found at - https://gist.github.com/crypt0rr/60aaabd4a5c29a256b4f276122765237.

There is a known issue with Intel NIC e1000e hanging. More details - https://www.reddit.com/r/Proxmox/comments/1drs89s/intel_nic_e1000e_hardware_unit_hang/

This Helper Script has been created to help resolve the issue using the solutions found on GitHub etc. This is not my fix I have just created a Helper Script around the solution that will hopefully help many others.

🔗 Related PR / Issue

Link: #

✅ Prerequisites (X in brackets)

• Self-review completed – Code follows project standards.
• Tested thoroughly – Changes work as expected.
• No breaking changes – Existing functionality remains intact.
• No security risks – No hardcoded secrets, unnecessary privilege escalations, or permission issues.

---

🛠️ Type of Change (X in brackets)

• 🐞 Bug fix – Resolves an issue without breaking functionality.
• ✨ New feature – Adds new, non-breaking functionality.
• 💥 Breaking change – Alters existing functionality in a way that may require updates.
• 🆕 New script – A fully functional and tested script or script set.
• 🌍 Website update – Changes to website-related JSON files or metadata.
• 🔧 Refactoring / Code Cleanup – Improves readability or maintainability without changing functionality.
• 📝 Documentation update – Changes to README, AppName.md, CONTRIBUTING.md, or other docs.

---

🔍 Code & Security Review (X in brackets)

• Follows Code_Audit.md & CONTRIBUTING.md guidelines
• Uses correct script structure (AppName.sh, AppName-install.sh, AppName.json)
• No hardcoded credentials

📋 Additional Information (optional)