After experiencing a rather pleasant 2 years of service (3MB DL) from Charter in O'Fallon, MO without connection drops or speed problems, the service has turned into a nightmare and I'm wondering if anyone here in the St. Louis area is experiencing these same issues.

Charter has been out and checked all the incoming and outgoing signals and say that everything is in great working order.  I have replaced the cable modem (Motorola) with a brand new Linksys, and have swapped out cables in the house as well with no resolution.

Ever since this new 10MB speed and the "Aurora" system was brought to our area this has started occuring.  My modem keeps track of the critical error that is being received everytime I lose internet connection.  It happens all the time throughout the day and night and lasts until the modem resets itself automatically.  Here is the error.

Started Unicast Maintenance Ranging - No Response received - T3 time-out
Unicast Ranging Received Abort Response - Re-initializing MAC
Received Response to Broadcast Maintenance Request, but no Unicast Maintenance opportunities received - T4 timeout
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
DHCP RENEW sent - No response

This on-going issue is gonna lead me to switch to DSL very soon.  Does anyone know what I can do to resolve this?  Keep in mind my equipment has been replaced and the signal quality is good on my end.  Thanks.

Welcome to the forum Foxtrot010 
Another MO resident heard from. I hope they get you fixed up.