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Limited or No Connectivity (wireless)

T

TygGer

Senior member
I'm using a DLink router and have DHCP and WPA enabled. Everytime I want to connect wirelessly, I get a "Limited or no connectivity" message.

If I restart the router, the wireless will work. But then the next day when I attempt to connect wirelessly, I have to go through the same routine.

How can I fix this?

Thanks
 
Well, i tried a bunch of things and nothing works with dhcp enabled on the laptop. I changed it to static and was able to connect. guess i keep it on static until i can figure out whats going on...
 
Originally posted by: skyking
I'd wager that the DHCP server in that router is flaky.
Click to expand...

I agree, I've had remarkably bad luck with DHCP servers on consumer routers. The only cheap DHCP server I've been able to find that works right is the ISC DHCP server.
 
Not sure if it's the DHCP on the router since my other laptop connects fine.

Haven't tried disabling WPA because my other laptop works. I've tried reinstalling the firmware on my "messed up" laptop to no avail. Why would one laptop connect wirelessly while the other is having problems? Both are running XP Home SP2.

 
Check the proccess that are runing on the Laptop and make sure that there is nothing runing that involbes the original Wireless utility ( http://www.ezlan.net/wireless.html) ).

Switch temp. Off the WPA in the Router and see if the Laptop works without it.

Make sure that SSID is On in the Router.
 
Depend on what model you are using, WPA (Wi-Fi Protected Access: wireless personal enhenced security) you do need to setup a static IP on the unit which will connect to gateway with WPA. Because WPA requires more voltage since it is a higher security than other, you may also need to upgrade chipset on wireless adapter and recommended to attach the power adapter into the laptop!
 
Originally posted by: marulee
Depend on what model you are using, WPA (Wi-Fi Protected Access: wireless personal enhenced security) you do need to setup a static IP on the unit which will connect to gateway with WPA. Because WPA requires more voltage since it is a higher security than other, you may also need to upgrade chipset on wireless adapter and recommended to attach the power adapter into the laptop!
Click to expand...

FUD alert.....


I don't know where you got this info, but it's totally wrong....totally
 
Originally posted by: nweaver
Originally posted by: marulee
Depend on what model you are using, WPA (Wi-Fi Protected Access: wireless personal enhenced security) you do need to setup a static IP on the unit which will connect to gateway with WPA. Because WPA requires more voltage since it is a higher security than other, you may also need to upgrade chipset on wireless adapter and recommended to attach the power adapter into the laptop!
Click to expand...

FUD alert.....


I don't know where you got this info, but it's totally wrong....totally
Click to expand...

Well, believe it then try it. (Static) Some of the unit really need this!

Did you ever used dlink model? just a curiousity..
 
sorry, but you are talking nonsense. WPA versus WEP has NOTHING to do with voltage... and no laptop made in the last few years will have wireless encryption problems just because it's unplugged...

I know because I have done wireless testing for the major makres and major laptop vendors
 
Originally posted by: marulee
Originally posted by: nweaver
Originally posted by: marulee
Depend on what model you are using, WPA (Wi-Fi Protected Access: wireless personal enhenced security) you do need to setup a static IP on the unit which will connect to gateway with WPA. Because WPA requires more voltage since it is a higher security than other, you may also need to upgrade chipset on wireless adapter and recommended to attach the power adapter into the laptop!
Click to expand...

FUD alert.....


I don't know where you got this info, but it's totally wrong....totally
Click to expand...

Well, believe it then try it. (Static) Some of the unit really need this!

Did you ever used dlink model? just a curiousity..
Click to expand...


Well, I dont know if this is true or not... but leaving all things equal and just restarting the router will usually resolve the connection problem, so I dont think its the problem.

But it definitely has to be a problem with the laptop because other laptops connect fine.
 
did you try using the windows repair connection function in the wireless network connection area.. should be in the status tab if I remember correctly. since it is just your laptop maybe doing that when the connection stops working will fix your problem.
 
Originally posted by: nweaver
sorry, but you are talking nonsense. WPA versus WEP has NOTHING to do with voltage... and no laptop made in the last few years will have wireless encryption problems just because it's unplugged...

I know because I have done wireless testing for the major makres and major laptop vendors
Click to expand...

WPA requires more processing power than WEP when it is decrypting from the gateway, and signal replies from adapter with the encryption. Eventually, router and laptop will use more power than other security since there are much more traffics! As we all know, passphrase and standard limited characters inputs for the security require complete different procedures for the processor.

'Life is cool'
 
Originally posted by: marulee
Originally posted by: nweaver
sorry, but you are talking nonsense. WPA versus WEP has NOTHING to do with voltage... and no laptop made in the last few years will have wireless encryption problems just because it's unplugged...

I know because I have done wireless testing for the major makres and major laptop vendors
Click to expand...

WPA requires more processing power than WEP when it is decrypting from the gateway, and signal replies from adapter with the encryption. Eventually, router and laptop will use more power than other security since there are much more traffics! As we all know, passphrase and standard limited characters inputs for the security require complete different procedures for the processor.

'Life is cool'
Click to expand...

Different =! more
WPA does not require more processing power, it does require more to brute force/crack, but not just to use. it's like the users who spread the "WPA slows down your network" FUD. I have tested many laptops/cards and speed is pretty much the same Open/none all the way up to PEAP/WPA2.

OP, I would guess a flakey DHCP server in the router. I would update F/W and see if it fixes it, otherwise try a static IP and see how that works.
 
Originally posted by: nweaver
Originally posted by: marulee
Originally posted by: nweaver
sorry, but you are talking nonsense. WPA versus WEP has NOTHING to do with voltage... and no laptop made in the last few years will have wireless encryption problems just because it's unplugged...

I know because I have done wireless testing for the major makres and major laptop vendors
Click to expand...

WPA requires more processing power than WEP when it is decrypting from the gateway, and signal replies from adapter with the encryption. Eventually, router and laptop will use more power than other security since there are much more traffics! As we all know, passphrase and standard limited characters inputs for the security require complete different procedures for the processor.

'Life is cool'
Click to expand...

Different =! more
WPA does not require more processing power, it does require more to brute force/crack, but not just to use. it's like the users who spread the "WPA slows down your network" FUD. I have tested many laptops/cards and speed is pretty much the same Open/none all the way up to PEAP/WPA2.

OP, I would guess a flakey DHCP server in the router. I would update F/W and see if it fixes it, otherwise try a static IP and see how that works.
Click to expand...

It is true that WPA is a built-in mechanism which client will not frequently re-authenticate. (After WPA which temporal key integrity protocol takes over and creates a key to encrypt all traffic from that point on. After a set interval, the AP develops a new key, that part is all automatic.)
But client session is a credential and up to date by manually.
Then is not 'force/crack' requires more power systematically depends on the setup? ..although it's minor.

'Life is cool'

 
Originally posted by: marulee
Originally posted by: nweaver
Originally posted by: marulee
Originally posted by: nweaver
sorry, but you are talking nonsense. WPA versus WEP has NOTHING to do with voltage... and no laptop made in the last few years will have wireless encryption problems just because it's unplugged...

I know because I have done wireless testing for the major makres and major laptop vendors
Click to expand...

WPA requires more processing power than WEP when it is decrypting from the gateway, and signal replies from adapter with the encryption. Eventually, router and laptop will use more power than other security since there are much more traffics! As we all know, passphrase and standard limited characters inputs for the security require complete different procedures for the processor.

'Life is cool'
Click to expand...

Different =! more
WPA does not require more processing power, it does require more to brute force/crack, but not just to use. it's like the users who spread the "WPA slows down your network" FUD. I have tested many laptops/cards and speed is pretty much the same Open/none all the way up to PEAP/WPA2.

OP, I would guess a flakey DHCP server in the router. I would update F/W and see if it fixes it, otherwise try a static IP and see how that works.
Click to expand...

It is true that WPA is a built-in mechanism which client will not frequently re-authenticate. (After WPA which temporal key integrity protocol takes over and creates a key to encrypt all traffic from that point on. After a set interval, the AP develops a new key, that part is all automatic.)
But client session is a credential and up to date by manually.
Then is not 'force/crack' requires more power systematically depends on the setup? ..although it's minor.

'Life is cool'
Click to expand...

eh...

try and brute force a WPA/TKIP encrypted network, see how long it takes...

Now take a WEP 128 encrypted network, and see how...oops, already done I see...

Point is, that WPA, when you have the key, is no more intensive the WEP, it doesn't take more processing cycles, slow down the computer, or require more power.
 
Originally posted by: marulee
Depend on what model you are using, WPA (Wi-Fi Protected Access: wireless personal enhenced security) you do need to setup a static IP on the unit which will connect to gateway with WPA. Because WPA requires more voltage since it is a higher security than other, you may also need to upgrade chipset on wireless adapter and recommended to attach the power adapter into the laptop!
Click to expand...


This may be the silliest thing I've ever seen on this board and brother, that is saying something. Complete nonsense. Rubbish.
 
Originally posted by: ktwebb
Originally posted by: marulee
Depend on what model you are using, WPA (Wi-Fi Protected Access: wireless personal enhenced security) you do need to setup a static IP on the unit which will connect to gateway with WPA. Because WPA requires more voltage since it is a higher security than other, you may also need to upgrade chipset on wireless adapter and recommended to attach the power adapter into the laptop!
Click to expand...


This may be the silliest thing I've ever seen on this board and brother, that is saying something. Complete nonsense. Rubbish.
Click to expand...

=)

Well, just try Dlink with WPA! firmware C or A

'Life is cool'
 
Originally posted by: marulee
Originally posted by: ktwebb
Originally posted by: marulee
Depend on what model you are using, WPA (Wi-Fi Protected Access: wireless personal enhenced security) you do need to setup a static IP on the unit which will connect to gateway with WPA. Because WPA requires more voltage since it is a higher security than other, you may also need to upgrade chipset on wireless adapter and recommended to attach the power adapter into the laptop!
Click to expand...


This may be the silliest thing I've ever seen on this board and brother, that is saying something. Complete nonsense. Rubbish.
Click to expand...

=)

Well, just try Dlink with WPA! firmware C or A

'Life is cool'
Click to expand...

Just because some vendor screwed up on implementation does NOT mean that's the way it is...

I've never used DLink WAP's, I'm a Cisco guy, who has a Netgear WRT at home setup as a basic AP
 
Originally posted by: marulee
Depend on what model you are using, WPA (Wi-Fi Protected Access: wireless personal enhenced security) you do need to setup a static IP on the unit which will connect to gateway with WPA. Because WPA requires more voltage since it is a higher security than other, you may also need to upgrade chipset on wireless adapter and recommended to attach the power adapter into the laptop!
Click to expand...

You need to go and learn something. 🙂

'Life is cool'
 
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