@mark25810 If the upload problem only shows up when this Wi-Fi card is connected to that router, then maybe do a search on the Internet for this particular combination. These Intel AX210 modules are...

@mark25810 If possible test the card in another PCIe slot (provided there is/are any), but I doub't the motherboard being older would be an issue. Just make sure the motherboard BIOS is on the latest...

@particle Sometimes these USB Wi-Fi adapters don't switch to SuperSpeed mode even if they are plugged into an USB 3.x socket. However, this is not obvious and can only be determined by using separate...

@mark25810 If the "old" card was shown by Windows as "Intel(R) Wi-Fi 6E AX210 160MHz", then there is no difference to the TXE75E, because it uses exactly the same Intel AX210 module. So, if both...

@mark25810 Do I understand this correctly that you have another wifi 6e card that gives the same (bad upload) results? If yes, does that card also use an Intel AX210 M.2 module? What upload speed...

@mark25810 Hi, Have you already tried another speedtest website to re-confirm this upload behavior? (just google for "internet speed test" if you don't already have another website on hand) Since you...