said by Docsisman :A valid guess would be the massive amount of work including Chassis upgrades, Frequency moves, hardware swaps and the like that have shaken up the cozy little world your modem used to live. So the key is, is your internet experience affected? If it is then the technician would/should be looking for other issues to correlate to the T3's such as upstream SNR, FEC at the CMTS, inter channel frequency response, equalizer coefficients and so forth..
The OTN tech gave me his contact information. Should I ask him to look at that stuff, Docsisman?