You cannot know if you need an update until you know what you have. The current version number for the Sagemcom Fast 5866T typically looks something like SG586686T-XXX.XXX.XXX . Here is how to find yours.
This can take weeks. You cannot force it.
You cannot know if you need an update until you know what you have. The current version number for the Sagemcom Fast 5866T typically looks something like SG586686T-XXX.XXX.XXX . Here is how to find yours.
This can take weeks. You cannot force it. sagemcom fast 5866t firmware update