WSUS update errors

Failed to contact server with 0x8024402c or Error 0x8024402c occurred while downloading update; notifying dependent calls:

Open elevated command prompt:

sc stop bits
sc stop wuauserv

rmdir /s "%windir%\SoftwareDistribution"
mkdir /s "%windir%\SoftwareDistribution"
cacls "%windir%\SoftwareDistribution" /G Everyone:F

gpupdate /target:computer

sc start bits
sc start wuauserv

wuauclt /detectnow