We’ve been having problems with this since Vista came out, luckily it’s not a terribly frequent occurrence. A new year has started and we’re seeing it again. We currently have 2 students who cannot connect to our network, they keep getting the unidentified network with a 169.254 IP. We have tried everything we can think of:
- release/renew just times out
- disable/re-enable the nic
- checked all the TCP/IP settings & checked the LAN settings
- typed netsh interface ipv6 show neighbors into the cmd prompt to see if anybody on campus was broadcasting as a gateway
- I’ve even gone into the registry to disable the broadcast flag. NOTHING HAS WORKED.
- Setting the network type to private instead of public if it’s even set wrong.
I’ve spent hours and hours researching this online but so far have only come up with a couple more things to try. One of which is doing a TCP/IP stack repair and the other just deals with disabling firewalls (windows and otherwise). Has anybody actually found a solution that works? This is driving me insane.
Edit #1: It appears that Norton and possibly McAfee cause some sort of problem. I’m not exactly sure what yet. We’ve tried disabling both programs, but that didn’t work. A student uninstalled Norton and was able to get online. I like those programs less and less the more I work with them.
Edit #2: We came across another one of these and they had some weird panda anti-virus software, uninstalling it got them online. So if you come across this problem try uninstalling the anti-virus/firewall and see if that fixes it – just disabling them hasn’t worked. I really wish I knew what specifically about those programs caused the problems.