reply to grafx
Re: [AB] BB50 disconnects about 1-2 times an hour
said by grafx:Can you post your OS details? (Version, service packs, etc)
since changing this i havent had a single disconnect. it appears this WAS the cause. although it surprises me.
Maybe the OS doesn't like a 1 hr lease?
reply to Grafx
I wonder if it's "flapping" because something is causing the port to reset. The disconnection happens when the Ethernet PHY is forced to renegotiate the link (it takes 2-3 seconds).
This can happen if someone clicks "repair" on the interface - Windows brings the interface down and back up, which forces a renegotiation. It then does a new DHCP request to bring up the link.
Try setting your PC to use a static IP and see what happens.
What happens is if the lease is 1 hour, the PC will automatically do a lease renew when the lease is half expired. Thus at one hour, the PC will begin renewing the lease 1/2 hour in. When this happens, the DHCP server could very well send a DHCKNAK saying "renewal failed, drop your existing leases". Windows could very well reset the port (in case the network changed on it and it didn't notice - the usual cause of NAKs).
Usually caused by a subtle incompatibility between the DHCP server and client.
If static IPs work, use them (and make sure to exclude them from the DHCP range).
reply to Grafx
Just to confirm, since changed. this problem has never returned.
SO if anyone experiences this issue. its DHCP RELEASE TIME!
Now we just need some more people to test this and chip in. Thanks Grafx.
I've been trying to reproduce,
I am not getting the LAN ports to cycle or turn off when doing DHCP rewews
-Posted from my phone.