koitsu
Premium
join:2002-07-16
Mountain View, CA
| reply to TonyMan
Re: SB6120 Connection Speed - LAN side
It could also be that a soft reset of the cable modem doesn't properly re-negotiate speed/duplex with your Linksys device, which would mean either the SB6120 or the Linksys is incompatible (with regards to auto-negotiation) with one another.
You could try doing a software reset on the SB6120 (available via the web interface, e.g. »192.168.100.1/) and see if after that reset the LED on the cable modem doesn't come back up blue.
Either way, this kind of problem -- even sporadic -- is almost always the sign of vendor compatibility problems, specifically with regards to auto-negotiation. Even enterprise-level hardware has this problem, which is why many environments prefer managed switches where you can administratively set the speed/duplex on *both ends* (required! You can't set it on one end and expect the other end to work properly) to avoid this kind of situation. In other environments, auto-neg is the only way to get things to work. Go figure. 
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Making life hard for others since 1977.
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