2007 security update can't connect with wifi after sleep

After applying the 2007-001 security update I could no longer get to the any web pages even though internet connect showed I had a good connection. After checking my network settings I noticed that my Power book had a self applied IP address. I deleted the internet .plist files in my user/library/preferences folder and rebooted. Then my network settings showed a valid ip address. After putting the Power book to sleep for a while. I had to go through the whole routine again. Has anyone found a fix for this?

Hello Peter
Albeit this is a late reply, I have found that if I disconnect from
the net via the Airport symbol on the Finder's task bar that, works for me.
It is odd since this issue is most prevalent with 10.4.8 & intel in particular.
However I have experienced it on my powerbook running 10.4.8.
My Flat panel runs os 10.3.9 but is connected via ethernet & that does not have this issue.
Make sure your Router/Modem is updated on it's firmware.
I don't know how you connect, however try DNS Server #'s if you do not have those entered in your, DNS server field, TCP/IP tab, Network, In System pref.
Look for your ISP's server # here
FYI, for many ppl.in the States, the Verizon numbers work well.
Verizon (Level3) - these are not restricted to Verizon customers
4.2.2.1
4.2.2.2
Of course the DNS maybe filled all ready & have nothing to do with
your problem, thought I would add it.
Hope this helps some, if you look at your post.
Eme'~[)

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