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5.8

"Bandwidth request failed" error in event log for ZyXel Prestige 944s (cable modem).

Asked by Count_Onnet in DSL Lines / Cable Internet

Tags: zyxel, 944s, modem

I've got this little problem...this error shows up periodically at a commercial account of ours, and nobody can tell me what it means. ZyXel's website doesn't provide much help on this.

The RF signal reaching the modem is well within range.  The modem has been replaced twice.  A Motorola Surfboard cable modem placed on site for testing this problem shows no errors at the time the ZyXel records "Bandwidth request failed".

When this series of errors occurs, the network connected to the modem cannot access the Internet.

Here's the relevant portion of the event log:

07/24/2003 20:27:54 = "TFTP completed"
07/24/2003 20:27:53 = "TFTP File=isrcip3bw3.bin"
07/24/2003 20:27:53 = "TOD OK,Fri Jul 25 02:27:53 2003"
07/24/2003 20:27:48 = "DHCP OK, IP=10.x.x.x"
07/24/2003 20:27:46 = "Start Ranging,UCD=1,Pwr=44.50"
07/24/2003 20:27:38 = "Downstream Locked 621000000 Hz"
07/24/2003 20:27:36 = "Scanning downstream channels"
07/24/2003 20:27:36 = "Bandwidth request failed"
07/24/2003 19:42:21 = "TFTP completed"
07/24/2003 19:42:19 = "TFTP File=isrcip3bw3.bin"
07/24/2003 19:42:19 = "TOD OK,Fri Jul 25 01:42:19 2003"
07/24/2003 19:42:13 = "DHCP OK, IP=10.x.x.x"
07/24/2003 19:42:12 = "Start Ranging,UCD=1,Pwr=44.50"
07/24/2003 19:42:05 = "Downstream Locked 621000000 Hz"
07/24/2003 19:42:02 = "Scanning downstream channels"
07/24/2003 19:42:02 = "Bandwidth request failed"
07/24/2003 19:27:39 = "TFTP completed"
07/24/2003 19:27:38 = "TFTP File=isrcip3bw3.bin"
07/24/2003 19:27:38 = "TOD OK,Fri Jul 25 01:27:38 2003"
07/24/2003 19:27:34 = "DHCP OK, IP=10.x.x.x"
07/24/2003 19:27:32 = "Start Ranging,UCD=1,Pwr=45.00"
07/24/2003 19:27:24 = "Downstream Locked 621000000 Hz"
07/24/2003 19:27:22 = "Scanning downstream channels"
07/24/2003 19:27:22 = "Bandwidth request failed"
07/24/2003 15:58:08 = "TFTP completed"
07/24/2003 15:58:06 = "TFTP File=isrcip3bw3.bin"
07/24/2003 15:58:06 = "TOD OK,Thu Jul 24 21:58:06 2003"
07/24/2003 15:58:02 = "DHCP OK, IP=10.x.x.x"
07/24/2003 15:58:01 = "Start Ranging,UCD=1,Pwr=45.75"
07/24/2003 15:57:53 = "Downstream Locked 621000000 Hz"
07/24/2003 15:57:51 = "Scanning downstream channels"
07/24/2003 15:57:51 = "Bandwidth request failed"
07/24/2003 14:20:28 = "TFTP completed"
07/24/2003 14:20:26 = "TFTP File=isrcip3bw3.bin"
07/24/2003 14:20:26 = "TOD OK,Thu Jul 24 20:20:26 2003"
07/24/2003 14:20:20 = "DHCP OK, IP=10.x.x.x"
07/24/2003 14:20:18 = "Start Ranging,UCD=1,Pwr=45.25"
07/24/2003 14:20:11 = "Downstream Locked 621000000 Hz"
07/24/2003 14:20:08 = "Scanning downstream channels"
07/24/2003 14:20:08 = "Bandwidth request failed"
[+][-]07/31/03 06:07 PM, ID: 9045282Accepted Solution

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About this solution

Zone: DSL Lines / Cable Internet
Tags: zyxel, 944s, modem
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Solution Provided By: pbessman
Participating Experts: 2
Solution Grade: A
 
[+][-]07/30/03 03:23 PM, ID: 9040359Expert Comment

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