Xbox will connect to the internet but have no server connection even when no server issues are found

I have had my one x for about 7 months after buying it used on ebay and a couple of days ago we had a small power outage and since then even after restarting a brand new modem the console has no connection to the xbox servers even when showing connection to the internet was strong, I’ve tried a factory reset but keep data and the issue still is proceeding, I’ve actually opened it up to see if something might have fried but found no visual issues aside having to clean out some dust, any ideas as this is the first time I’ve seen this on an xbox and don’t know if its software or hardware causing an issue