Wifi doesnt reconnect after hibernation

Raj1008 · 12th February 2009, 23:04

Hi,

I have been having a problem with reconnecting my laptop to my wireless router after I restart the laptop from hibernation. I can reconnect only after I either
1. log onto another open wifi connection for awhile and then disconnect and retry logging on to my router or

2. by rebooting my laptop

I have tried ipconfig/release and ipconfig/renew but that doesnt always work. Once in 5 tries maybe. Surprisingly the other laptop I have at home works fine and so does my VOIP adaptor.

I had this problem on my previous connection as well, which had a different router provided by the ISP. So I am inclined to think that the problem lies with some setting on my laptop.

My laptop is a HP Pavilion ze2000 and uses Braodcom 802.11 b/g WLAN
I have Belkin Wireless G router
Belkin : Wireless G Router
This is connected to the ISP provided modem which is not wifi.

WEP encryption is on

I use Avast AV and zonealarm firewall, windows firewall is turned off.

I will appreciate if anyone can help me fix this. It gets very irritating to reboot or keep logging on different networks first and then log on again on mine.

tsk1979 · 12th February 2009, 23:47

do you have DHCP enabled. If so zonealarm can cause trouble with DHCP. Get rid of zonealarm, your problem is solved.
Otherwise have static IP and don't use DHCP.

So if your router is 192.168.0.1 set that as gateway and set your computer to 192.168.0.1

However getting rid of zonealarm is a lot easier

Raj1008 · 13th February 2009, 00:01

I have tried static IP but it didint work either. I will try it again today and see if I get any different results. Will post results.

Also my other laptop works fine, with same softwares installed.

I am unsure of letting go of a firewall. Unless you can recommend another one if it works better than zonealarm

vivekiny2k · 13th February 2009, 00:05

let me guess, you have vista.

It's a known issue, SP1 for vista was supposed to have it fixed but it caused my laptop to crash rather than hibernate. so i had to uninstall it. no solution in sight yet except rebooting.

Raj1008 · 13th February 2009, 00:08

Surprise surprise I have Windows XP! Infact I have a vista laptop that works perfect!

I know some setting is wrong but cant figure it out.

pranavt · 13th February 2009, 00:09

Quote:

Originally Posted by tsk1979

do you have DHCP enabled. If so zonealarm can cause trouble with DHCP. Get rid of zonealarm, your problem is solved.
Otherwise have static IP and don't use DHCP.

So if your router is 192.168.0.1 set that as gateway and set your computer to 192.168.0.1

However getting rid of zonealarm is a lot easier

I think you mean "set your computer to anything between 192.168.0.2 - 192.168.0.254"

tsk1979 · 13th February 2009, 00:21

did you go to static IP both on your router and Laptop?
As for firewall, your router already has one, and you can enable the windows in build firewall(its pretty decent). You don't need something like zonealarm

Raj1008 · 13th February 2009, 00:25

I went static on my laptop. I will try and do it on the router too. But then I will need to go static on my other computers as well??

SirAlec · 13th February 2009, 01:50

try this:
1. Win+pause Break key (system properties)
2. Device manager
3. Search for your wifi adaptor in Network Adaptors (mine is atheros)
4. double click it and click on advance tab
5. click powersave to off

Wifi doesnt reconnect after hibernation-wifi-adaptor.jpg

Raj1008 · 13th February 2009, 01:58

@ SirAlec Power save mode is set to disabled already

tsk1979 · 13th February 2009, 10:45

IF you are using multiple computers, try removing zonealarm and using windows native firewall. You are anyways behind a NAT. This means unless you enable port forwarding on your router manually, nobody can access your machine. Thats your first line of defence already.
If you were directly connected to the internet, then zonealarm would make sense, in your case it does not!
So enable DHCP and remove zonealarm. I was suffering same thing as you on windows XP and by removing zonealarm, the problem went away.

RSimonS · 13th February 2009, 11:44

Can you please try the following from command prompt

ipconfig /release
ipconfig /flushdns
ipconfig /renew

This might help

Raj1008 · 13th February 2009, 21:06

@ RSimonS already trying that but success is once in 5 tries.

@ tsk1979 Thanks. Since you feel so strongly about switching off Zonealarm, I am going to try it that way.

But questions in my mind are, how is it able to connect to other networks but not mine and how do the other computers at my home connect with no problems? I have one computer running Vista and another which runs XP too. Has it to do with some WEP setting on my laptop?

dark_horizon · 14th February 2009, 18:18

This could also be due to mix up of your wifi-router software and windows zeroconnect for wifi. I would suggest, reinstall the wifi drivers for windows for your laptop and uninstall the router software.. Let windows manage your wifi connection.

Raj1008 · 14th February 2009, 20:42

@ dark_horizon I dont have belkin software installed on my laptop. I uses windows manage wifi.

I have scaled back the ZA security level to medium from high. It worked fine this morning. Lets see over next few days. Thanks all for your inputs.

12th February 2009, 23:04	#1
Raj1008 BHPian Join Date: Mar 2007 Location: Toronto Posts: 119 Thanked: 64 Times View My Garage	Wifi doesnt reconnect after hibernation Hi, I have been having a problem with reconnecting my laptop to my wireless router after I restart the laptop from hibernation. I can reconnect only after I either 1. log onto another open wifi connection for awhile and then disconnect and retry logging on to my router or 2. by rebooting my laptop I have tried ipconfig/release and ipconfig/renew but that doesnt always work. Once in 5 tries maybe. Surprisingly the other laptop I have at home works fine and so does my VOIP adaptor. I had this problem on my previous connection as well, which had a different router provided by the ISP. So I am inclined to think that the problem lies with some setting on my laptop. My laptop is a HP Pavilion ze2000 and uses Braodcom 802.11 b/g WLAN I have Belkin Wireless G router Belkin : Wireless G Router This is connected to the ISP provided modem which is not wifi. WEP encryption is on I use Avast AV and zonealarm firewall, windows firewall is turned off. I will appreciate if anyone can help me fix this. It gets very irritating to reboot or keep logging on different networks first and then log on again on mine.
	() Thanks

12th February 2009, 23:47	#2
tsk1979 Team-BHP Support Join Date: Feb 2005 Location: San Jose, CA Posts: 23,717 Thanked: 22,825 Times View My Garage	do you have DHCP enabled. If so zonealarm can cause trouble with DHCP. Get rid of zonealarm, your problem is solved. Otherwise have static IP and don't use DHCP. So if your router is 192.168.0.1 set that as gateway and set your computer to 192.168.0.1 However getting rid of zonealarm is a lot easier Last edited by tsk1979 : 12th February 2009 at 23:48.
	() Thanks

13th February 2009, 00:01	#3
Raj1008 BHPian Join Date: Mar 2007 Location: Toronto Posts: 119 Thanked: 64 Times View My Garage	I have tried static IP but it didint work either. I will try it again today and see if I get any different results. Will post results. Also my other laptop works fine, with same softwares installed. I am unsure of letting go of a firewall. Unless you can recommend another one if it works better than zonealarm
	() Thanks

13th February 2009, 00:05	#4
vivekiny2k Senior - BHPian Join Date: Feb 2005 Location: cincinnati, jabalpur,chennai Posts: 1,264 Thanked: 209 Times View My Garage	let me guess, you have vista. It's a known issue, SP1 for vista was supposed to have it fixed but it caused my laptop to crash rather than hibernate. so i had to uninstall it. no solution in sight yet except rebooting.
	() Thanks

13th February 2009, 00:08	#5
Raj1008 BHPian Join Date: Mar 2007 Location: Toronto Posts: 119 Thanked: 64 Times View My Garage	Surprise surprise I have Windows XP! Infact I have a vista laptop that works perfect! I know some setting is wrong but cant figure it out.
	() Thanks

13th February 2009, 00:21	#7
tsk1979 Team-BHP Support Join Date: Feb 2005 Location: San Jose, CA Posts: 23,717 Thanked: 22,825 Times View My Garage	did you go to static IP both on your router and Laptop? As for firewall, your router already has one, and you can enable the windows in build firewall(its pretty decent). You don't need something like zonealarm
	() Thanks

13th February 2009, 00:25	#8
Raj1008 BHPian Join Date: Mar 2007 Location: Toronto Posts: 119 Thanked: 64 Times View My Garage	I went static on my laptop. I will try and do it on the router too. But then I will need to go static on my other computers as well??
	() Thanks

13th February 2009, 01:50	#9
SirAlec Senior - BHPian Join Date: Sep 2006 Location: zxc Posts: 3,393 Thanked: 726 Times	try this: 1. Win+pause Break key (system properties) 2. Device manager 3. Search for your wifi adaptor in Network Adaptors (mine is atheros) 4. double click it and click on advance tab 5. click powersave to off
	() Thanks

13th February 2009, 01:58	#10
Raj1008 BHPian Join Date: Mar 2007 Location: Toronto Posts: 119 Thanked: 64 Times View My Garage	@ SirAlec Power save mode is set to disabled already
	() Thanks

13th February 2009, 10:45	#11
tsk1979 Team-BHP Support Join Date: Feb 2005 Location: San Jose, CA Posts: 23,717 Thanked: 22,825 Times View My Garage	IF you are using multiple computers, try removing zonealarm and using windows native firewall. You are anyways behind a NAT. This means unless you enable port forwarding on your router manually, nobody can access your machine. Thats your first line of defence already. If you were directly connected to the internet, then zonealarm would make sense, in your case it does not! So enable DHCP and remove zonealarm. I was suffering same thing as you on windows XP and by removing zonealarm, the problem went away.
	() Thanks

13th February 2009, 11:44	#12
RSimonS BHPian Join Date: Oct 2008 Location: Bangalore Posts: 218 Thanked: 256 Times	Can you please try the following from command prompt ipconfig /release ipconfig /flushdns ipconfig /renew This might help
	() Thanks

13th February 2009, 21:06	#13
Raj1008 BHPian Join Date: Mar 2007 Location: Toronto Posts: 119 Thanked: 64 Times View My Garage	@ RSimonS already trying that but success is once in 5 tries. @ tsk1979 Thanks. Since you feel so strongly about switching off Zonealarm, I am going to try it that way. But questions in my mind are, how is it able to connect to other networks but not mine and how do the other computers at my home connect with no problems? I have one computer running Vista and another which runs XP too. Has it to do with some WEP setting on my laptop?
	() Thanks

14th February 2009, 18:18	#14
dark_horizon BHPian Join Date: Sep 2006 Location: mumbai Posts: 78 Thanked: 6 Times	This could also be due to mix up of your wifi-router software and windows zeroconnect for wifi. I would suggest, reinstall the wifi drivers for windows for your laptop and uninstall the router software.. Let windows manage your wifi connection.
	() Thanks

14th February 2009, 20:42	#15
Raj1008 BHPian Join Date: Mar 2007 Location: Toronto Posts: 119 Thanked: 64 Times View My Garage	@ dark_horizon I dont have belkin software installed on my laptop. I uses windows manage wifi. I have scaled back the ZA security level to medium from high. It worked fine this morning. Lets see over next few days. Thanks all for your inputs.
	() Thanks