Please excuse this long dialog...
I downloaded and installed Windows Live OneCare Version 1.6.2111.30 Saturday September 8th, 2007. I installed it on one (1) Vista Ultimate and two (2) Windows XP Professional machines. The Vista installation is running perfectly; however, the XP installations, each cut off access to the home network system. This was first observed when OneCare backup could not be used on the network as it had been with the Vista installation. I'm a long time Microsoft enthusiast (1986) and this is my first real disappointment with any Microsoft product… I put 24 man hours of troubleshooting into these installations; only to conclusion the solution was to remove OneCare. Once removed, the home networks were again accessible from the respective machines.
Description on Home Network:
Six (6) machines four (4) Pentium Fours, one (1) Pentium Three and one (1) Pentium Two connected with D-Link DGS-2208 eight port switch through a D-Link DIR-655 cable router hard wired with cat5 to Intel PRO/1000 Adapters. The Pentium Three machine is used as an Archive and backup machine with four (4) hard drives partitioned with drives ranging in size 40-150 gig. All machines are Microsoft auto-updated and protected with Microsoft Defender. Virus protection (except now for the OneCare on the Vista Ultimate machine) is provided by Avast! 4 Home Edition.
What am I doing wrong for XP?