I noticed recently that my upload speed really dropped off. My.verizon.com/services/speedtest says that my download speed is 30 mbps, but my upload speed is around 6 mbps, measured at a machine plugged directly into the router. The upload speed has always been pretty close to the download speed before. I just noticed this when I was uploading some files for work recently. It's hard to say exactly how long this has been going on.
I have an Actiontec MI424WR Rev E. It has firmware version 20.21.2. Yes, I rebooted it. Suggestions welcome.
Contact support with that info