Hub wouldn't connect until I disabled 5ghz wifi? Or coincidence?

[JDRoberts]

Wow, that sounds frustrating. I hope you find a fix soon.

What did support say? Did they have any ideas?

I know there are a couple of outstanding issues where the hub keeps disconnecting, but I don’t remember all the details.

I know there’s a current closed beta which is supposed to address at least one of the reasons for this problem.

Hub Firmware 17.x Beta

We are getting ready to launch some new Hub features and would love for community members to be among the first to experience them. This update includes: Additional devices updates for OSRAM lights (US only) Early warning tools to predict and diagnose Hub failures Mechanism to receive other new features (e.g., device updates) early Numerous stability and reliability improvements The update will typically take 15-30 minutes, but might take longer in a few instances. Since this is an early release, there is a chance that not everything will be perfect, and we would appreciate your help by providing us feedback. The sign up period to participate in the 17.x Beta is now closed but please keep a look out for future Beta tests! Note - if you participated in the 16.x Beta, you can fill out t…

SmartThings Is Over Party

For the 0.17.x release series, we do have a modest change to increase the number of LAN handle entries to avoid potential exhaustion as it sounds like you may have encountered. If your hub is in fact rebooting as a result of some set of actions, do contact support as this typically indicates that something beyond LAN handle exhaustion might be occurring. On a related note, there was a fix for a LAN issue that resulted in a reboot that shipped with the most recent 16.x hotfix release. Was the issue you observed with this firmware or a previous version?