Trying to update from

When trying to update, sometimes update wont run at all. Sometimes its gets 3/4 through and message
“Comodo Update could not be completed, not able to connect to internet” appears. Obviously I am connected.How do I get around this?. XP Pro SP3,

Are you sure you are connected?

There have been reports of SP3 breaking or corrupting network connections and/or network configuration settings. Be sure to temporarily disable your anti-virus when downloading and installing updates.