have a strange problem that im hoping someone can solve.
we have an SBS2008 Server that keeps dropping or resetting the lan network connection every 5-15 minutes.
NIC: Dual port Broadcom 10/100/1000
the server was until this week in a very poor Broadband area (5.1kms from the exchange = 200k !)
so when RDP disconnected we always blamed it on the bandwidth as generally it would re-connect. however now it has a 100/100 PTP ->internet fibre connection on the lan and its still doing it. even from within the lan.
the motherboard had a failure last week and was replaced under warranty, i was assuming that this would solve the problem with the network card as the drivers and firmware for the server were all up to date before it failed and it made no difference with the new board in.
symptoms are that if you attempt a long download it will time the download out and disconnect RDP at the same time and occasionally cause dns problems.
im also getting a slow transfer speed over the LAN and WAN (600K/s on a gigabit lan end-end)
ive checked duplexing and manually set that im rapidly running out of ideas. anyone else had problems like this with server2008 ive noticed it on a pair of backend webservers as well running 2008