ALL modem models have specific problems at one time or another. It may be due to a modem hardware problem, modem firmware problem, or related to a CMTS issue. Neither modem manufacture's or cable ISPs are very forthcoming about such issues and they tend to be the most difficult to find or probe.
The following is a list of modems that forum users have found specific issues with. The general issue is listed along with the thread in which it was discussed.
RCA 235 and other RCA models with the molex power plug:
Due to issues with the molex power-plug, it loosens and causes connectivity problems.
/forum/remark,8184527~mode=flat
Linksys BEFCMU10v2:
Due to a problem with the v1.06 firmware, connections using alot of bandwidth will lock-up the modem, forcing a reset to regain connection.
/forum/remark,9968223~mode=flat
Motorola Surfboard 4100 and 4101:
Issues with firmware versions 4.0.11 and 4.0.12 cause slow upload speeds.
/forum/remark,6810235~mode=flat I'm searching for other links to this as well.
Motorola Surfboard 4200:
With certain firmware versions (v4.4.0 and possible a few earlier versions) this modem will lock up when passing certain types of traffic.
/forum/remark,5851761~mode=flat
Motorola Surfboard 5100:
A firmware issue in version 1.1.1.1 can cause slow speeds when connected to certain CMTSs with particular configurations. Upgrading the firmware fixes this.
Some versions of the following modems seem to have issues with 256 QAM downstream channels. Slow speeds and packet loss are commonly seen symptoms:
Com21 1110 (3-color label on top)
Siemens SpeedStream 6101
D-Link DCM-100
Scientific Atlanta DPX-110
Linksys BEFUCM10 version 1 & 2:
This list is neither official, comprehensive, or complete.
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by MacLeech 
last modified: 2005-12-10 22:21:39 |
