I'm grasping at straws here, and reaching out to a wider community to find out if there's anyone out there that's been able to get an HWIC-CABLE-D-2 card to work. I figured it was worth giving one more shot before I call and cancel my Comcast account, as it seems silly to pay for a service I can't use. The card synchronizes with the CMTS system, does all the happy dancing back and forth with ranging, etc. and then just hangs waiting for the TFTP transfer to complete. Tried different cables, removing all splitters, plugging in right at the entry point to the facility...no change. :( Here's the config on the interface: netflight-1841#show run int cable-Modem 0/1/0 Building configuration... Current configuration : 344 bytes ! interface Cable-Modem0/1/0 ip address dhcp no ip redirects no ip unreachables no ip proxy-arp ip nbar protocol-discovery ip flow ingress ip nat outside ip virtual-reassembly in load-interval 30 service-module ip rip relay ipv6 address dhcp ipv6 dhcp client pd hint ::/60 ipv6 traffic-filter v6-external-in in no cdp enable end netflight-1841# netflight-1841#show int cable-Modem 0/1/0 Cable-Modem0/1/0 is up, line protocol is down HFC state is IP_COMPLETE, HFC MAC address is 0018.19b6.76f6 Hardware is Cable modem, address is 001b.2a7d.adfc (bia 001b.2a7d.adfc) Internet address will be negotiated using DHCP MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive not supported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:01, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/17/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 30 second input rate 14000 bits/sec, 19 packets/sec 30 second output rate 0 bits/sec, 0 packets/sec HFC input: 0 errors, 0 discards, 0 unknown protocols 0 flow control discards HFC output: 0 errors, 0 discards 49900914 packets input, 3803706540 bytes, 0 no buffer Received 0 broadcasts (0 IP multicasts) 0 runts, 0 giants, 5 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 input packets with dribble condition detected 34567 packets output, 1519738 bytes, 0 underruns 0 output errors, 0 collisions, 5 interface resets 0 unknown protocol drops 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out netflight-1841# netflight-1841#show controllers cable-Modem 0/1/0 mac state Connectivity State: IP complete Boot State: Waiting for TFTP BPI Security: Disabled DOCSIS Operating Mode: DOCSIS 1.0 mode DOCSIS COS Mode: Unregistered Snmp Operating Mode: NmAccess mode MIB Values: Mac Resets: 0 Sync lost: 0 Invalid Maps: 0 Invalid UCDs: 0 Invalid Rng Rsp: 0 Invalid Reg Rsp: 0 T1 Timeouts: 0 T2 Timeouts: 0 T3 Timeouts: 1 T4 Timeouts: 0 Range Aborts: 0 DS Lock : Locked DS Frequency: 651000000 Hz DS QAM Mode: QAM256 DS Power Level: 4.3 dBmV DS Symbol Rate: 5360.537 Ksym/sec DS Interleave: 32 Taps, 4 Increment DS SNR: 38.3 dB US ID: 45 US Frequency: 18900000 Hz US QAM Mode: QPSK US Power Level: 35.7 dBmV US Symbol Rate: 2560 Ksym/sec Ranging Offset: 12226 Mini-Slot Size: 4 Change Count: 1 Preamble Superstring: 03 f0 28 33 eb f0 28 33 eb f0 28 33 eb f0 28 33 eb e1 ee 16 6d e8 73 09 15 d7 92 e7 03 ba 7a 94 0a af ad 06 ed ac 17 7c 79 a6 b8 d1 7f 4b 14 c6 03 32 b2 7e d2 4d f9 6a 14 4e cb d8 6a 9c 86 21 00 88 c8 ea d8 e2 54 6c f9 e2 dc a4 13 3a 3e f0 7f 0d f3 de c0 ed f3 de c0 0d f3 de c0 ed f3 de c0 ed f3 de c0 ed f3 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff Burst Descriptors: +--------------+------+------+------+------+------+------+------+------+------+ | | 1 | 2 | 3 | 4 | 5 | 6 | 9 | 10 | 11 | | IUC | Req | Req/ | Init | Per | Short| Long | Adv | Adv | Adv | | | | Data | Maint| Maint| Data | Data | Short| Long | UGS | +--------------+------+------+------+------+------+------+------+------+------+ Modulation: QPSK XXXX QPSK QPSK XXXX XXXX 64QAM 64QAM 64QAM DiffEncoding: Off XXXX Off Off XXXX XXXX Off Off Off PreambleLen: 56 XXXX 640 384 XXXX XXXX 104 104 104 PreambleOffset: 652 XXXX 0 0 XXXX XXXX 716 716 716 FEC T Bytes: 0 XXXX 5 5 XXXX XXXX 12 16 12 FEC K Bytes: 16 XXXX 34 34 XXXX XXXX 81 223 81 Scrambler Seed: 338 XXXX 338 338 XXXX XXXX 338 338 338 Max Burst: 0 XXXX 0 0 XXXX XXXX 11 255 255 Guard Time: 8 XXXX 48 48 XXXX XXXX 8 8 8 Last Codeword: Fixed XXXX Fixed Fixed XXXX XXXX Short Short Short Scrambler: On XXXX On On XXXX XXXX On On On Preamble Type: QPSK1 XXXX QPSK1 QPSK1 XXXX XXXX QPSK1 QPSK1 QPSK1 RsIntrlvrDepth: 1 XXXX 0 0 XXXX XXXX 0 0 0 RsIntrlvrBlkSz: 2048 XXXX 2048 2048 XXXX XXXX 2048 2048 2048 Config File: Network Access: Allowed Maximum Number of CPEs: -1 Concatenation: Enabled Fragmentation: Enabled PHS: Enabled Maximum DS Data Rate: 0 Maximum US Data Rate: 0 Maximum US Burst: 0 Ranging Backoff Start: 2 Ranging Backoff End: 7 TX Backoff Start: 2 TX Backoff End: 8 My offered IP address: 73.72.46.36 CM Configuration file: d11_m_hwiccabled2_economyplus_c01.cm Log Server IP address: 0.0.0.0 TFTP Server IP address: 96.120.88.93 Time Server IP address: 69.252.97.8 Domain Name Server: 68.87.76.178; 68.87.78.130 Lease time: 365673 netflight-1841# If people have ideas on more appropriate forums that might be able to help, I'd love pointers to those as well; search engine searches have been largely fruitless on this so far. Thanks so much for any pointers people can give! Matt