Network grinds to halt until switch is reset.
Posted on 2009-04-21
We have a client who has had a new gigabit switch installed and we are having some major speed issues with it at least once a day.
The switch is a Netgear GS748T 48 port Switch, we have almost filled the switch with devices including over 20x xp based workstations, 1x SBS 2003 server, 2x Fujitsu-Siemens Fibrecat NAS and 5 or more network printers.
The network will run fine for up to 24 hours then the network speeds will slow to the point where accessing the server shares is almost impossible and ping rates to all network devices go from a happy <1ms to 300-700ms.
There have been able to get round the problem by reseting the switch or sometimes we have to reboot all the pc's!
I have called netgear and they have replaced the switch twice whch has fixed the problem for a while but it comes back.
We have performed a spyware check on the server and all the PC's on site which have found nothing and they have ESET ativirus which is up to date on all pc's and servers.