Slow on updating.

I just want to know between the credit beaurau, why is there a lack in score. <br> <br> I have been paying my accounts. All is up to date. I even finish most of it. I fail to make a payment on 2 accounts , but get it up to date again.<br> <br> I checked my report on transunioin my credit score indicated very good at a score of 827.<br> <br> I checked it at experian it shows I am a poor payer rating me at a code 5 now I want to know by you Experian what is wrong? <br> <br> Is it maybe different criteria or why can't I be updated by you guys. Because this of declining is freaking me out. Please do update my accounts by you...