Persistent T3 Timeouts and High Uncorrectable Errors After Outside Interference Diagnosis

I'm hoping someone from Xfinity can help review my account and reach out via direct message.

A technician visited my apartment last weekend and performed extensive troubleshooting. He tested my personally owned modem, replaced the coax jumper, inspected the wall connection, and checked the junction box serving my apartment. According to the technician, everything inside my apartment tested healthy.

The technician then identified significant signal distortion/interference on the outside plant and advised that a maintenance crew or lineman would need to address the issue. He indicated that the service problems should be resolved once that outside work was completed.

Unfortunately, I am still experiencing the same issues.

My modem continues to accumulate tens of thousands of uncorrectable codeword errors across multiple downstream channels despite downstream power levels, upstream power levels, and SNR all appearing to be within specifications. I am also continuing to experience lag, intermittent disconnections, and recurring T3 timeout events.

Recent modem log entries include:
• No Ranging Response received - T3 time-out
• Started Unicast Maintenance Ranging - No Response received - T3 time-out
• MDD message timeout
• Dynamic Range Window violation

Given that the technician ruled out my modem, coax jumper, wall connection, and junction box, I am concerned that the outside plant issue may not have been resolved or that the maintenance referral was never completed.

Could someone please review my account and confirm:
• Whether a maintenance or lineman ticket was created
• The status of that ticket
• Whether any outside plant maintenance was completed
• Whether additional work is planned to address the signal issue

At this point, I am seriously considering canceling my Xfinity Internet service and switching providers due to the ongoing connectivity problems. However, I currently have three Xfinity Mobile lines, and two of those lines still have active device financing agreements.

Before making a decision, I would also like clarification regarding:
• How much my Xfinity Mobile bill would increase if I cancel internet service
• Whether any standalone mobile fee would apply per account or per line
• Whether I can continue making monthly device payments after canceling internet service, or if the remaining balances would become due immediately
• Any other account changes, fees, or impacts I should expect

If a representative could please reach out via direct message, I would appreciate the opportunity to provide account details and screenshots of the modem diagnostics, event logs, and technician meter readings.

Thank you.