I've posted about the issues I'm having elsewhere on these forums and then found this thread, so sorry for doubling up.
I suspect I'm seeing the same issue with my Roku
I have a Roku express streaming player which is only about 18 months old. It's suddenly not connecting due to poor wifi signal strength. It's been mostly trouble free (other than an update that stopped it connecting to Netflix for a few days) There's another thread for that!
It worked perfectly one day, then would not connect the next. (Nothing changed elsewhere)
Done the usual, restart device and router, but no joy. (but not a reset)
I've switched it out with a Roku premier that is used in another room and that connects first time with "good" signal quality from the exact same spot. When I check signal quality on that device, Netflix shows a solid 22Mbs.
Placed back original Roku express and when it does occasionally manage to connect, signal quality is "poor" at best (was good originally) with Netflix measuring a pityful 0.395KBs! w
Having been bitten once with a software update I'm unsure as to whether it's "groundhog day" and another software issue, or something had actually failed inside the device.
If it is another software issue the player has effectively hobbled itself as getting any type of a connections takes numerous attempts.
The last software debacle also only affected my Roku express and not my premier version. It really would be nice to get some feedback from Roku instead of just waiting and hoping it gets resolved.