That fixed it, holding down the reset button for 10 seconds! Thank you so much for the help!
(Just cause you asked, the original reason I upgraded the firmware in the first place was because I found only a couple devices in the house could be connected wirelessely to the router at the same time, but my understanding was that it was supposed to support up to 255 devices connecting to it. When I researched what could cause that online, some link I found advised me to upgrade the firmware on the router, I looked into the firmware, saw it was out of date, and figured that even if that didn't fix the problem, was probably worth updating it since I never had and they didn't update firmwares for no reason, even if it didn't fix my problem, there were probably other issues that were fixed I didn't even know where happening. I won't bother you guys with that issue though, as long as at least 1 of my wifi devices can cannot and my wired connects, I should be okay by just taking turns with the wifi connection)