Skip to content
View in the app

A better way to browse. Learn more.

Unraid

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

"Lost Communication" error w/ APCUPSD

Featured Replies

Trying to setup the APCUPSD.  I have an APC UPS connected to my Unraid server with a smart usb to RJ cable.

 

It recognizes the UPS in the UPS details bottom section, however, continually gives me a "lost communication" error.  I have set it as USB: Smart and Cable: APCSmart.  I am a bit of a linux novice, so did not set the device field up (left it as default).  Predominately because I do not know how to map the connection to the appropriate TTY (if that is correct).

 

I travel extensively for work, so would sleep better at night knowing that if I do have a power outage that my server will gracefully shutdown.

What is the model of UPS and cable? On the older UPS the pin outs on the cables were different for various models. 

  • Author

APC BR1000G.  I lost the original cable, so ended up purchasing a replacement off of Amazon.

  • Community Expert
49 minutes ago, sisren said:

USB: Smart and Cable: APCSmart

Those are not really choices. Perhaps you meant:

UPS Cable: Smart and UPS Type: APCSmart

Have you tried turning on Help?

 

Have you tried a different USB port?

  • Author
2 minutes ago, trurl said:

Those are not really choices. Perhaps you meant:


UPS Cable: Smart and UPS Type: APCSmart

Have you tried turning on Help?

 

Have you tried a different USB port?

Sorry.  You are correct.  I selected Smart and APCSmart for cable and type.

 

I have not tried swapping out the USB port.  Only because when I run "lsusb" it identifies the UPS.

 

Does the 'Device' field need to have a value?

  • Community Expert

USB ports disconnecting are a common cause of problems with the flash drive, so likely it could be a problem here also. USB2 is preferred.

  • Author
51 minutes ago, trurl said:

USB ports disconnecting are a common cause of problems with the flash drive, so likely it could be a problem here also. USB2 is preferred.

OK.  I can certainly try USB2.

 

Still looking for clarification on if the "device" field needs to be completed.  And if so, how I identify/map what that designation might be...

 

Thanks!

  • Community Expert

The manual for APCUPSd is linked on the UPS Settings page.

 

If yours is mostly working as is then I would try another port.

Archived

This topic is now archived and is closed to further replies.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.