I get the error "The operation failed. Please login to DSM again and retry"

I also cannot restart or power off the NAS from the DSM menu. Clicking the button shows a dialog box claiming to restart or shutdown the NAS but nothing actually happens.

I also tried to hold down the power button to manually shutdown the NAS, but the power button keeps blinking and doesn't actually shutdown the NAS.

I tried reaching out to synology but their support page just doesn't load after thr initial exchange where they asked me to hold down the power button to shutdown.

Definitely manually power cycle the nas. What model is in question?

If SSH... login as admin

then

sudo su

enter admin password, then...

echo 0 >/dev/ttyS1 #normal shutdown

alternatively...
echo C >/dev/ttyS1 #hard reset

echo 1 >/dev/ttyS1 #instant poweroff

echo 0 >/dev/ttyS1 #normal shutdown

reboot #normal reboot

what's wrong with shutdown -h now ?

Full details using shutdown --help .

Rusty said:

Definitely manually power cycle the nas. What model is in question?

Click to expand...

DS418 play

Telos and fredbert:

I will try to shutdown through SSH in the evening

shutdown through ssh worked and on the next start the update worked as well.

Thanks everyone

Woohoo... glad to hear that

thank you i have been having an issue with doing a manual install of the upgrade package for plex v1.25 on dsm7, installing and using firefox to log into the dsm has resolved my issue