Archive

Archive for September, 2009

Issues with WiFi and Vista

September 18th, 2009 John Mahlman IV View Comments

In my lab I keep a wireless access point active; mainly for students and profs using it to connect computer together for whatever. I used to use a WPA password for the system. WPA worked fine except that many people who were not supposed to be on the network were on there. Students would give the password out, and this annoyed me. That network is supposed to be for DM staff and students only, that’s why I have it separate from the schools wireless.

Over the summer I made a lot of changes to the network, mainly I changed it over to use WPA2 Enterprise with our RADIUS server. The logins are taken from our Open Directory LDAP (the ones people use to log into our machines, website, wiki, etc.) and thats how people connect. Works great in MacOS, I select the network, put my user and pass in and voila! Windows was another story.

My MBP has Windows 7 Ultimate; I was able to connect to the network after changing some WIndows defaults. It does ask for a login, which is better than what XP did, but it still had some issues. I had to disable the “Check server certificate against blah blah”, because it’s a self-signed cert it wouldn’t work. I also need to disable “Use windows login password to login to this network.” I understand most people using “enterprise” networks all use AD or whatever to login to their computer, but why make that default? Not to mention, to change both of these options it’s 5 levels down or so buried deep in the wireless preferences. It’s impossible to change if you don’t know what you’re doing.

Windows 7 connects fine now. No issues, it’s actually very stable. Issues arise when Vista users connect. Now, when I add the network for a Vista user it comes up as WPA2 Enterprise (good), AES (great), it even prompts for a user and password (excellent). No connection. I change those settings above again, because it’s by default, still nothing. I go into even more advances prefs by changing the authentication method to MSCHAPv2 or TTLS, PEAP, whatever works. Nothing works. I check all of the Vista prefs with my working Windows 7 prefs, they are identical. What is the issue then?

After a good Google search, and more and more searches, and stops to Apple discussions, and everything else I can think if, I see similar results. Apparently Windows Vista HOME does not work with WPA2 Enterprise. It just doesn’t work. It’s “broken” as some would put it, or “disabled.” Whatever the reason, my question is “Why??” Why do you put WPA2 Enterprise network prefs and even allow me to add said network to my computer when I can’t fucking connect to it? Explain that one, please! If you don’t want Home users to connect to enterprise networks, take the fucking thing out, don’t just make it act like it works and then not let it. How do I know it’s a client issue and not a server issue? Logs.

My server logs all RADIUS connections and attempts to authenticate. My server issues the challenge to the machine, but the machine apparently ignores it, or throws it away, or wipes its ass with it. It does NOTHING.

Now, I was having this issue with some other computers as well, Windows XP users. Their main issue was that they didn’t have updated drivers or settings were screwed up, but they eventually worked most of the time. I’ve also tried with some Vista Pro computers, and yes it works most of the time. The times it doesn’t usually work, I tell the people to get the software from their card manufacturer and use it, and then it seems to magically work.

What is wrong with WIndows wireless? You got me, but I finally told those people who couldn’t connect to either upgrade or deal with it and connect to a poly network. Hell, Poly’s putting N-Wireless in, I might just use it from now on also!

Battle of the Bulge: A Battery Story

September 1st, 2009 John Mahlman IV View Comments

If you own a Mac laptop you know that the adapter has a little light on it; green for charged, amber for charging or bad. The light on my adapter (which is not the original adapter, but a replacement from Apple themselves) stopped working properly a long time ago: the light would not come on in most cases unless I jiggled the cable for a bit and then never touched or moved it again. If I moved, it went out. I thought this was a contact issue on the plug itself, I’ve seen many people have the same issue before. So I thought nothing of it. Not to mention, my battery was fine, 255 cycles after 2 years and I still got 2+ hours on a good day.

Last week this changed when I noticed my laptop spontaneously turning off at random points during use. Even when fully charged it would cut off, and not allow me to start unless I plugged it in, even though there was a 70% charge on the battery. Fed up I decided t was time to bring it in for service, again. The night before I was going to bring it in brought on a whole new issue. After placing my laptop on the table I noticed it was not sitting evenly. I look underneath and notice the battery is sticking out…maybe it’s not plugged in all the way? I pop the battery off and find it to be bulging outward!

MacBook Pro battery with a bulge.

MacBook Pro battery with a bulge...

This is a very dangerous thing to happen to a battery. So now I know there is an issue and my battery is not “just old.” I brought it to Tekserve the very next morning and after 2 hours of waiting and checking they determine that not only is the battery bad, the adapter is as well.

Why am I writing about my battery? I’m mainly writing to talk about how Tekserve tested and made sure there really was an issue. The woman who helped me took my laptop to the table behind her and popped in a USB stick with some sort of battery/adapter testing program from Apple. The test came up as both “Good” at first. She retested, both came as “bad”. She retested, one came ad good, one as bad, etc. She did this at least 4 times, and then tested with a known good battery and adapter, and came to the conclusion that “AFTER NUMEROUS TESTS I have deemed that both are broken and need to be replaced.” She found this out after TESTING what I told her to test.

So a few things to keep in mind here:
1. If your battery starts to bulge, please get it replaced and stop using it ASAP. It’s dangerous.
2. It might not be just the battery, get the adapter checked.
3. Tekserve tests their shit…as everyone should.
4. A new battery and adapter make me happy.

Now I have a 1 cycle battery for free:-)

Brand new battery info.

Brand new battery info.

Categories: Hardware Tags: , , ,