SB6190 issues on Cox Network

Purchased the SB6190 from Newegg.com, had modem provisioned on the Cox network, began experiencing latency issues, intermittent connectivity issues, low upload speeds. Currently subscribed to Cox HSI Ultimate Tier and using the SB6183 which is locked on to 16x4 channels. Is there a software version for the SB6190 other than the 9.1.93D. When pinging the SB6190 directly without a router, the modem appears to have high internal latency's. Can anyone else confirm this by pinging 192.168.100.1 and reporting the min, max. and avg. latency's? I'm not seeing the latency's when I ping the SB6183, so I'm skeptical as to the proper provisioning of the SB6190 since I haven't seen any software version for the SB6190 other than the 9.1.93D, if Cox is working on a configuration or firmware update please let us know, I'd like the SB6190 to operate as well as the SB6183 does now.