Can you try setting static IP on some of the machines and see how things go? DougM -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of Marcel Birthelmer Sent: Thursday, April 26, 2007 3:45 PM To: Microcontroller discussion list - Public. Subject: Re: [OT]: Home network monitoring software Andre, Which computer is acting as a DHCP server? Also, you can get ethereal (www.ethereal.com) to see packets flying around your network. Rgds, - Marcel On 4/26/07, Andre Abelian wrote: > DougM, > > I use sonicwall TZ170 firewall and 3com hub. > I use windows 2003 as regular pc. and I am not > using static IP. > > Andre > > > > > -----Original Message----- > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf > Of Doug Metzler > Sent: Thursday, April 26, 2007 2:24 PM > To: 'Microcontroller discussion list - Public.' > Subject: RE: [OT]: Home network monitoring software > > > Is your hub just a hub or is it a firewall/DNS server? If it's just a hub > then are you using static IP addresses? If not is your 2003 box the DNS > server? Has that fallen down? > > DougM > > -----Original Message----- > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of > Richard Prosser > Sent: Thursday, April 26, 2007 1:06 PM > To: Microcontroller discussion list - Public. > Subject: Re: [OT]: Home network monitoring software > > Andre, > Maybe a few more details about what you have tried? > > e.g - Static IP addresses, a different hub/router, how many of the > PC's will operate at once. > Could it just be a faulty network card or cable? > > Does the network otherwise appear OK without the internet connection - > can you ping the individual items? > > Has the system worked previously and just failed or have you added > something or changed something and it's fallen over? > > Is there something special in your ISP requirements? > > I'm no network expert, but those on the list that are will likely > require a bit more info. > > I have found the utility "ipscan" useful for seeing what's connected > to a network - let me know if you want a copy. > > Richard P > > > > > > On 27/04/07, Andre Abelian wrote: > > Hi to all > > > > I have 4 pc and 1 DVR that connected to network thru a HUB and this is > > my 3 th day I am working on it after work until midnight I can't make one > of my pc to > > go online I am getting "limited or no connectivity" error. I tried release > ip, renew ip > > ipconfig/release or ipconfig/renew doesn't help. I also restarted the > whole system etc. > > > > 1th pc windows xp > > 2th pc windows xp > > 3th pc windows server 2003 > > 4th pc mac > > 5th unit is DVR that I disconnected right now > > > > Strange thing is that I connected my laptop to where 3th pc is it worked > > 5 minutes then same error showed up "limited or no connectivity" no matter > > how many time I restart the result is same thing until I reinstall the NIC > driver. > > Mac is like made of rock is always up I never seen down and 1th pc had so > many > > spy that I disconnected to be reformatted. I tried all kinds of spyware > software > > they simple do not work. > > > > My question is: > > > > 1. is there any network monitoring software? > > 2. it is possible that there i a spy that is disabling the network driver? > > > > any idea will appreciate. > > > > > > Andre > > > > > > -- > > http://www.piclist.com PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist