According to the Sony tech (by telephone), 80023103 occurs when the Playstation Store or PSN is undergoing maintenance.
Sony recommended adding funds to PSN accounts on any day other than Thursdays.
I'll try again today (Friday) to redeem the PSN Network Card... (Hope this works!!!)
"Got a new error code 80022A07 get it when trying to sync up trophies. Gets to 6% and gives me the error." - yellowdart46
I get the same message, too. Can anybody confirm that this is a trophy sync error? Is it just something I have to wait for the servers for, or something I can actively fix?
Recieved a Error Code not in your list:
8002AF02 - An error occured during communication with the server. This is a DNS error.
I was trying to log into the PSN Store at the time. I am trying to get a hold of my ISP to see if its on my side or their side before contacting Playstation about the error. However, thought I'd drop you the notice on the Error Code.