Recently I've been experiencing slow data speeds on 4g - speed test says ~300-512kb/s - after my phone has been on for at least a day. If I reboot my phone, the speeds return to normal. Has anybody else experienced something similar? I'm at about 6GB, so if I was on 3g I could be being throttled, but the phone is definitely connected to 4g. Traffic Monitor doesn't show anything monopolizing the bandwith either. Any thoughts? I find it very strange that a reboot clears the issue too.