Use Airport Express as a WIFI extender on non-Apple? I have a wireless router / modem from my cable provider and I was looking to use my existing Airport Express as a WIFI range extender. Is this possible? I currently have it connected directly with a cat6 cable but I rather use it wirelessly to get extra range.

Thank you in advance!
This is sadly not possible, you can only extend a network created by another Airport Extreme/Express.