Was working fine, it’s relatively new, maybe a year or so old. Never had any issues with it, went away for the weekend, now we’re back and it won’t connect to the wifi. Tried all the basic troubleshooting. Reset/restart, unplugged it, factory reset. Correct wifi SSID and password. Kinda at a loss at this point. How long do these usually last?
As different Roku models have different features and capabilities, it is always a good idea to include your Roku model and model number when asking for assistance.
There are some router setting issues that can prevent establishing Roku wifi connections. And to make matters worse, some of them can be caused by recently-reported router updates. These have primarily been reported with routers supplied by internet providers (Comcast/xfinity, Cox, and ATT so far), but it's possible they could also occur with other internet providers or user-owned routers that have received similar updates.
From the information provided, this could be your problem:
Thanks to forum user @AvsGunnar for providing the links below to instructions for reconfiguring router settings for the listed internet suppliers. If you can't do this yourself, you may need to contact your internet provider to make these changes for you:
If your problem was not caused by any of the above, often a restart of the router (even if other devices are still connecting) followed by a restart of the Roku will allow the connection to be reestablished. Depending on your Roku model and Roku version number you'll find the "System restart" option under either "Settings > System > Power" or "Settings > System", or if more convenient you can just remove the Roku's power for a few seconds and let it restart.