About a month ago I swapped the mainboard out on my FW13 (to an AMD ryzen 370) - it went well. But the wifi has been unreliable since, usually by not seeing any networks after waking from sleep. A reboot seems to resolve it, usually.
Right now as I type wifi is working, but showing a terrible signal quality, and I’m getting basically “modem” type speeds.
I’ve seen discussion of issues with wifi power management. But maybe I just messed up the antenna when putting the new mainboard in?
I’m just asking here for some diagnostic aid - any recommendations as to where to look?
             
            
              
              
              
            
            
           
          
            
            
              Top places to look will be:
- If you’re on linux, update your kernel to 6.15 or later, there’s a lot o 300-series fixes in recent kernels.
- If you’re on windows, search these forums for driver bundles. There were some updated drivers passed out for windows to help with wifi issues.
- Find what wifi card you have, and search these forums for issues. Some wifi cards have been notoriously buggy, especially on AMD. You might find some fixes specific to yours.
 
            
              
              
              
            
            
           
          
            
            
              Are you on windows or Linux?
For Windows, read this.
For Linux, read this and this as well.
These two post go any issues I’ve had on wifi. If you swapped boards and changed the wifi card, please remove the drivers and reinstall. Also, make sure that you have the antenna coaxial connections on tight and proper. If your antenna aren’t connected, then only whatever wifi signals that can reach the tiny nubs on the car are picked up.
             
            
              
              
              
            
            
           
          
            
            
              I’m on linux (Fedora 42), and I’m using the same wifi module that my FW13 came with in 2023. I’m leaning towards the antenna connection being the problem.
I’m at work, so I can’t take a look, but I recall during reassembly having some fiddly issues with the wifi module. I probably just did a poor job putting it back together - if the cable is barely connected / sporadically detaching that would explain this behavior quite well.
             
            
              
              
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              So, assuming I was experiencing a hardware issue, last night I took out the wifi card, verified connections to it and through to the antenna and put it all back together. Everything seemed fine, but this morning on wake my card saw no networks again.
A reboot “fixed” it, so I assume that this is going to be a power management issue as discussed in threads that were linked above. Will report back if I find a fix.
My wifi card, as reported by lspci is: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
My mainboard is the new Ryzen 300.
Note I am running an up-to-date kernel, 6.17.4.
             
            
              
              
              
            
            
           
          
            
            
              Per @HurricanePootis ‘s suggestion links, I disabled wifi powersaving. I’m now at 1.5 days uptime with multiple sleep/wakes without loss of wifi. So that’s a good start. Better than I was seeing earlier.
Hopefully this actually is a fix. Thanks!
             
            
              
              
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              Yeah no problem! The mediatek driver’s one downside on Linux has always been support for sleep/suspend operations.
Remember to set your regdom as well to ensure you’re getting access to all of the bands supported in your country