u/Sad_Bodybuilder5458

I'm working on an open-source, read-only tool that documents small networks (router API, hypervisor API, ARP/mDNS/nmap discovery, output as Markdown in git). Not public yet, no link.

One problem I keep running into: a lot of homes and small offices use cheap "easy smart" or unmanaged switches with no SNMP, no LLDP, and no usable MAC table you can query. So there's no clean way to say "this device is on port 5."

Options I'm weighing:

- A guided cable trace: unplug or replug one port at a time and watch which device drops off or reappears

- Inferring from link-state changes plus ARP timing

- Just letting the user fill it in once and keeping it as an override

Has anyone dealt with this? Is there a smarter trick I'm missing for dumb switches, or is guided manual tracing the realistic answer?

Going to keep this short.

After many days of troubleshooting games that had previously worked but suddenly would no longer launch, disabling my integrated GPU made a huge difference in overall stability.

In my case, MW3 would open its launcher, attempt to start, and then crash with a memory access violation followed by several Microsoft-related errors. After inspecting the crash logs, I found that the game appeared to be interacting with both the iGPU driver and my dedicated GPU driver.

I disabled the iGPU in Device Manager and left it disabled. After doing that, MW3 launched normally, and I have had noticeably fewer stability issues overall.

This may not apply to everyone, but if you have a dedicated GPU plus a iGPU and are experiencing unexplained crashes or games that suddenly refuse to launch, it may be worth testing.

I’ve had a few friends come to me for guidance, even on RDNA 3 that had the same exact issues after updating their drivers to the newest version. Which is why I figured i’d make a post about it, just incase anyone else is having the same issue.

Specs:

• Ryzen 5 9600X
• Radeon RX 9060 XT