Can not update recalbox raspberry pi 3

[DJMatrix-HU3]

My raspberry is connected to the internet but in the menu updates does not show new update available

I tried something by ssh but also did not succeed

my current version is 18.04.20

[OyyoDams]

@djmatrix-hu3 your issue is a dns (network) issue: Couldn't resolve host 'recaleur-archive-prod.recalbox.com'

Please check your router / box

[DJMatrix-HU3]

@oyyodams I checked my router, there are no problems with my network ...

I tried the cable connection and I was not successful ..

is there any way to update offline via pendrive or something like that?