I'have had this same Roku in place for months with no issues. However, in the past few days I have noticed when trying to watch anything live via Hulu channels very bad resolution and it is slow to load.
Looking at my access point controller I see that the connection rate is 13 Mbps down and the same 13 Mbps upstream as well. That seems very slow/odd as my other Roku shows 72 Mbps down and 65 Mbps upstream. The signal level for both are similar (-48dBm for the slow one and -52 dBm for the working one.)
I've tried rebooting the problematic Roku but still no luck. Any suggestions?