swapped switch won't switch

wvjohn · Post by **wvjohn** » Tue Sep 24, 2002 8:03 am

have a 24 port 3com swicth at work - nt 4.0 server/win98 pcs. ips are assigned by a cable modem router hooked to the switch ( i believe)

bearings go bad in the fans in the switch, make snow cone machine noises

3com sends a replacement switch, identical model

tried to install new switch - identical cabling - intermittent network connectivity - no internet

got tired of fooling with it and swapped back in the old one and it worked fine -

i must be missing something here but not sure what

TIA

Gand1 · Post by **Gand1** » Tue Sep 24, 2002 1:28 pm

Was the old switch manageble? Were there any management settings in the old switch that the new one would need? Sounds like you have some routing issues with the new switch.

Post by **FlyingPenguin** » Tue Sep 24, 2002 3:11 pm

Agreed, unless it's a manageable switch then there's no reason it shouldn't work. A straight switch doesn't require anything special.

Can the fans be easily replaced in the old one?

wvjohn · Post by **wvjohn** » Tue Sep 24, 2002 3:53 pm

the short answer is I don't know if the old switch was managed or not, but that seems like the problem here - i didn't have time to really look into it today because of other work out of the office - the fan replacement would probably not be a biggie - the problem there is 3com - if you send it in for repair, they don't send you a loaner - and they said it could be 10 days to get it back - the only other option was to get a new one - and pay $300 - and send the old one back - which was the option we took because we obviously can't do without for 10-14 days - btw - it took them ~10 days to get the new part here as well - i came in and tried to get it going on the weekend b/c it must be on while we're open

when hp stuff fails around here i get the parts overnite from hp and send the bad ones back, whic is the way it 'sposed to be !

i have a list of miscellaneous settings here somewhere that our IT/Network who we fired for never showing up left me at some point, i'll see if i can make any sense out of that

thanks, i'll report back as i learn more

john

Pugsley · Post by **Pugsley** » Tue Sep 24, 2002 6:58 pm

umm... get a pic of the front of it... i know I can get tonst of 3com stuff... and that sounds like one i have acess to. and i can get it for more like 60 dollars used!

Im going there tomorrow so ill get some pics and start a topic about it.

wvjohn · Post by **wvjohn** » Tue Sep 24, 2002 7:07 pm

thanks pugsley - this one is already paid for by the company -

Crabcake · Post by **Crabcake** » Wed Sep 25, 2002 2:18 am

The only 3Com switches that are manageable are the Superstack series. The rest like Office Connect and Soho series aren't. Check to see the MDIX button is not set. Other than that I can't think of any reason why a simple swap wouldn't work.

Pugsley · Post by **Pugsley** » Wed Sep 25, 2002 6:33 pm

Was gonna go tonite to get pics put ill wait till saturday to do it. I have some super stack stuff... great stuff. What i need is the master console unit for the super stack2 serries stuff. Wait, that one i have in the rack is a link builder! DOH!

wvjohn · Post by **wvjohn** » Tue Oct 01, 2002 11:09 am

turned out it the mdix button had to be set in and the cable to the router plugged into port 24

thx!

Gand1 · Post by **Gand1** » Tue Oct 01, 2002 5:04 pm

Damn! Sometimes I wish my switches were that easy! :kookoo