I recently bought an AX88U and I was dumb and tried to update it even though the firmware was working just fine. That update made it hella buggy. So, I tried to download the previous version, hard reset the router(holding the WPS for it to turn off), flash the previous version. Idk if the hard reset did not work as intended, but whenever I hard reset the firmware that was buggy stayed. So I am not sure if I am resetting it properly. The previous firmware works great like last time except that it gets way more stability issues than before I tried updating it. How can I fix this and what are some good settings for this router to be a bit faster/not as unstable?
Also, a side question that is not really apart of this but I would like to know: My motherboard has built in wifi. It kinda sucks so I tried buying a PCI e wifi card. Any PCI e wifi card that plug in just does not work. It works but then it just shuts off. Does not matter which wifi card I use. The motherboard is the Asus ROG strix z270e. It is quite old. I would like to know why PCI e wifi cards do not work on it.
Also, a side question that is not really apart of this but I would like to know: My motherboard has built in wifi. It kinda sucks so I tried buying a PCI e wifi card. Any PCI e wifi card that plug in just does not work. It works but then it just shuts off. Does not matter which wifi card I use. The motherboard is the Asus ROG strix z270e. It is quite old. I would like to know why PCI e wifi cards do not work on it.