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vista laptop gets limited access message (2) (Read 3430 times)
Dave Levy
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struggling with the BT
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Re: vista laptop gets limited access message (2)
Reply #15 - Mar 9th, 2010 at 9:30pm
 
I had a chat with a colleague at work and he pointed me at "Alternate IP Confgurations", part of tcp/ip v4 properties.

See also http://support.microsoft.com/kb/283676

I am advised that the default private address used is not usual, perhaps 192.168.0.bollox

See above.

I have written in my bliki at

http://davelevy.dyndns.info/snipsnap/space/Dave/BT+Home+Hub#vistawifi

or at

http://is.gd/a4m6t that

My biggest frustration has been the instability of Vista's connection with the BT Home Hub's Wifi Channels. (See BT Home Hub  on my  site.) I shared this with my colleague Tim Reczek who pointed me at the network card's control panel applet, which has an alternate IP configuration panel. He advised me that

Quote:
    if an XP or Vista system can't get an IP address it uses the alternative but the default automatic alternate IP address it uses is not very common, it might be best to configure the alternate address manually to maximise the chance it is a valid IP address


and you can do this in the knowledge of your home router's configuration parameters. The error message I have trapped on my Vista machine, see above, suggests this might be the case, Why has it taken so long to discover what a friend had in his head; he does admit he knows too much about the registry.
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JM
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Re: vista laptop gets limited access message (2)
Reply #16 - Mar 9th, 2010 at 10:23pm
 
Dave,
It isn't a question of knowing too much, but too little.  Yes, anyone could have directed you to alternate addressing but that is a work-around you shouldn't need.  Furthermore, I've seen many (self-inflicted) problems caused by errant alternate addresses - if it would only give you a private address you'd know straight away the dhcp server link was at fault, but you didn't get this.  The error message from earlier suggested an invalid IP request - hence my thought on a subnet error.

So, forgetting your blog - the query is being aided here  - where are you now with this problem?

Yes, I too have a passion to hate Vista's unhelpful networking but when it is happy it does work on fixed ethernet and wireless.

If you country code is set right I can't see it using anything other than the proper (to the Hub's) channels - but why not make sure as in an earlier post of mine (pick one, say ch2 - this is done on the Hub btw).  Do you use tunnelling vpn at work?  If so, try an added delay between one connection and anither - give it 5 mins idle after disconnecting one lan before stby/hib and using on another (try another 5 mins idle from on/resume/wakeup before attempting a wifi connect) and let us know (here) if that help at all.

If you do want a work-around, try 192.168.1.50 as a fixed ip - that will work on your hhub.
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Dave Levy
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struggling with the BT
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Re: vista laptop gets limited access message (2)
Reply #17 - Mar 10th, 2010 at 12:48pm
 
I have deleted some, but not much of JM's previous post, he writes

JM wrote on Mar 9th, 2010 at 10:23pm:
... alternate addressing ... is a work-around you shouldn't need.  Furthermore, I've seen many (self-inflicted) problems caused by errant alternate addresses - if it would only give you a private address you'd know straight away the dhcp server link was at fault, but you didn't get this.  The error message from earlier suggested an invalid IP request - hence my thought on a subnet error.

I am guessing that as you imply later, that Vista has lost the dhcp server, implements an alternate address on the 192.168.0 subnet and then is rejected by the hub. The address requested is private but uses a different 3rd octet, 0 not 1. Your theory, I think, that I have carried an address with me from work needs to be explored, but if that was the case, then how did it connect in the first place. I can confirm that my works LAN, that I connect to wired, most of the time, does use the 192.168.0 subnet address range. So I could have carried it with me from work.

Quote:
So, forgetting your blog - the query is being aided here  - where are you now with this problem?

Agreed the blog is meant to point here, a small help in its google score this is where I put my final words and ask for help.

I have replaced the BT Home Hub with a Linksys WAG in the location where I caught the event viewer  error message. So I hope we won't see any problems again. However the address at which I originally documented the systems failures has not been changed and I will try and hunt down another error message. I am not there as often as I was before Xmas and I don't plug my works machine into the home LAN much either, so I need to get user co-operation to do any diagnostics on the other laptops. Its not as if I can put them on credit hold  Roll Eyes The answer here is to use my works machine at home, the connectivity has always been appalling so it shouldn't take long.

Quote:
Yes, I too have a passion to hate Vista's unhelpful networking but when it is happy it does work on fixed ethernet and wireless.

If you country code is set right I can't see it using anything other than the proper (to the Hub's) channels - but why not make sure as in an earlier post of mine (pick one, say ch2 - this is done on the Hub btw).  Do you use tunnelling vpn at work?  If so, try an added delay between one connection and anither - give it 5 mins idle after disconnecting one lan before stby/hib and using on another (try another 5 mins idle from on/resume/wakeup before attempting a wifi connect) and let us know (here) if that help at all.

In my original location, I have changed the channel on your advice, and shall probably do so in the more recent location i.e the location at which I got the event viewer message. I have used inssider to check that I am the sole user of the channel in the area.

I do not use VPN.

But I do change from wired to wifi between work and home locations. NB This is  recent Dell and has "Dell Control Point" installed and running. While looking for Dell's Sepcification Sheet which is a .pdf,  I found this thread called Dell ControlPoint Connection Manager causes WiFi to drop connection on Dell's community forums which certainly describes the symptoms and one of the BT Helpdesk people has suggested it's a problem. I don't think either of the Studios (my family's laptops) nor the XP laptop has this software,  but I can check one of them tonight.

Quote:
If you do want a work-around, try 192.168.1.50 as a fixed ip - that will work on your hhub.

That's a thought. (Surely its not so simple). If it is the answer, then as you say, a problem of knowing too much not too little.
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JM
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Re: vista laptop gets limited access message (2)
Reply #18 - Mar 11th, 2010 at 10:47pm
 
Dave Levy wrote on Mar 10th, 2010 at 12:48pm:
That's a thought. (Surely its not so simple). If it is the answer, then as you say, a problem of knowing too much not too little.

I can't think off the top of my head why it won't work.  Your OS should ask the dchp for an address, but if it won't release the one it had should honour the refusal of that one and select, normally a private address, in this case your alternate.  Let me know how this performs.

Yes, best sorted sober - but otherwise have a drink, the problem will still be there later !! [cryptic message]

My 2p today - bet it is retaining the old address.  Try leaving it a while before close (network disconnected) and prior to reconnecting the the network.
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Dave Levy
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struggling with the BT
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Re: vista laptop gets limited access message (2)
Reply #19 - Mar 19th, 2010 at 7:45am
 
Today, 7:43 19th March I connected my works laptop to my london wifi lan and it failed to connect.

Ooops, turn on the wifi hard switch, it connects, with a .1.xxx address, as I would expect. Before turning it on, cmd.exe ipconfig reports no ip address. My last previous wifi connection was, the work's wifi LAN, the previous day. So no errors to report, except wetware.

This post could get tedious quite quickly.  Wink
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JM
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Re: vista laptop gets limited access message (2)
Reply #20 - Mar 19th, 2010 at 11:53am
 
Stick with it.

Wetware?  As in weather? - because it is glorious sunshine here !!!!!!!!!!!

Okay on no IP if no connection (power off) - yes this is what I'd expect.  The "retained" address kick in later once a network connection is up.

Just re-read an earlier post of yours.  You wrote your lan is  connects with 192.168.0   - is this correct?  If so, which hub/router are you using.
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Dave Levy
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struggling with the BT
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Re: vista laptop gets limited access message (2)
Reply #21 - Mar 19th, 2010 at 12:03pm
 
Wet ware is my brain.  Thanks for provoking me to check my wired, connection at work, which is xx.xx.0.xx.
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JM
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Re: vista laptop gets limited access message (2)
Reply #22 - Mar 19th, 2010 at 12:06pm
 
Thought, maybe, but surely everyone attempts a connection now and again without plugging in (!)

But "your lan" implied at home.
Need to verify home lan subnet/s.
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Dave Levy
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struggling with the BT
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Re: vista laptop gets limited access message (2)
Reply #23 - Mar 19th, 2010 at 12:36pm
 
Test this a.m. was at home (london), using WiFi, the new router uses xx.xx.1.xx sub net as configfured. The wifi hard switch was off, so when it resumed it failed to connect, until I turned it on when it happily aquired a .1.xx address. I shall conduct a wifi test at work later today to see which 3rd octet it uses.

The post this a.m was the start of a diary to try and track this stuff down.

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