Countless legacy Charter Communications customers in communities that have been served by the company long before it acquired Time Warner Cable and Bright House Networks spent much of Sunday without service due to a software or firmware failure with one or more of their backbone routers.

The company confirmed a widespread outage in California and the southeastern U.S. on Sunday and anecdotal reports from customers complaining about the outage indicate it affected customers the most in Texas, Tennessee, Georgia, Louisiana and South Carolina.

The outage did not seem to impact most of Charter’s acquired customers from Time Warner Cable and Bright House, which apparently still operate on different networks, which is why many Californians that live in areas formerly served by Time Warner Cable did not experience the outage while legacy Charter customers did.

Charter confirmed affected customers will not be getting automatic service credits for the outage. Customers must request a credit by phone or using online chat.

Customers were not impressed.

My bill keeps going up & service continually gets worse. 7 days in Sept we’ve had no internet service, 3 days no TV.

— Vickie Allen (@saltygirl454) October 2, 2017

We are still working to resolve the service outage affecting Southeastern States and parts of Texas, California, and Louisiana. Thank you.

— Ask Spectrum (@Ask_Spectrum) October 1, 2017

There is a known routing issue. I asked if you rebooted the equipment as for some customers are coming back onlin… https://t.co/ziTRqxWrjK

— Ask Spectrum (@Ask_Spectrum) October 2, 2017