I decided to downgrade to IOS c870-advsecurityk9-mz.124-15.T6.bin so I could try ADSL firmware AMR-3.0.043.bin, ver 20/22 of this IOS doesnt work with this firmware.
So far ive noticed 3.0.043 has slightly less Reed Solomon/CRC/Header errors, and notice improved performance. On previous firmware I noticed on upstream, I would get quite a few errors upon sync however with this firmware it seems fine and shows 0.
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