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WRT54GS Wireless disappearing/disconnecting spontaneously...

Discussion in 'Cisco/Linksys Wireless Routers' started by nato999, Feb 7, 2006.

  1. nato999

    nato999 Network Guru Member

    Hiya, using a v2 WRT54GS. Basically, the AP will disappear completely seemingly on a random basis. I'll just be using it, or playing a game, downloading something, and the signal strength will lower to 1.0 mbps and disconnect.

    THEN, it seems that it just takes a random amount of time before deciding that it would like to work again. When it first started doing this, I experimented with Thibor's firmware as well as DD-WRT on a whim, and they didn't really fix anything.

    Strangely enough, downgrading back to the last available official linksys firmware seemed to mitigate the problem temporarily... it still disappears, but with less frequency than before. However, when it's gone, no amount of rebooting or anything will make it come back... it just seems to randomly decide it wants to work again.

    I'm using a laptop that's maybe 10 feet away, max, with nothing inbetween it to test it and flash it. My main computer is a floor up and a little ways away, and we have an auxiliary computer for other use a floor down and not too far away from the AP. When the signal goes, though, it disappears for all 3 computers in the house, laptop, main and aux computer in the basement.

    Anyone have any suggestions? I don't need a reflector because when the AP works, signal strength is excellent all across the board (found just the right position in the house :) ) - I was thinking it might possibly be other interference from cordless devices?

    How can I test for that and what should I look for? :(
     
  2. KU7PDX

    KU7PDX Guest

    Do you use BitTorrent or any other filesharing apps? I switched from my WRT54G to a dedicated M0n0wall box because BitTorrent would cause the WRT54G to reboot...

    --Chris
     
  3. Mark_Venture

    Mark_Venture Network Guru Member

    I don't want to hijack this thread, but I have TWO WRT54G v2.0's that do the SAME THING... (also had a WRT54G v1 prior that was doing it too...)

    I've tried various versions of the STOCK linksys firmware, as well as Satori-4.0 v2.07.1.7sv. I've even added the Linksys High Gain antenna kit (HGA7T).

    I'm not using BitTorrent, or any P2P software.. Just "normal" web and FTP... and on occasion VPN using Aventail Connect or AT&T Network Client software.

    For my wireless clients, I only have two cards... a Linksys WPC54G that I pass between 2 WinXP SP2 laptops, and an Ambicom WL1100C-CF card in my iPAQ 2215.

    I've also tried various drivers for the WPC54G... and even remove the Ambicom from the iPAQ when not in use.

    I have gotten rid of my 2.4Ghz cordless phones, but I live in an apartment complex, so don't know what my neighbors have...

    Per Netstumbler, I can "see" a NetGear 11mbit access point on channel 7. I ocasionally see an 11mbit "Ad-Hoc" device called "HPSETUP" on channel 10 (I assume a laptop??)... and my WRT54G which I have tried on channels 1,2,5, 6 and 11.
     
  4. hesten

    hesten Guest

    Somebody, i mean somebody!....... FIX IT!!!

    Same shit here! :sad:
    i wish they would develop a firmware that fixed it!
    i've spend countless hours searching for a forum with a solving reply, so far without luck, so if anyone solves this mysterious disconnect issue pls mail me at lr@d6.dk

    thanks up front
    Lui
     
  5. vincentfox

    vincentfox Network Guru Member

    I was having frequent disconnect problems with a pair of WRT54GS v1.0 units.

    Tried a number of things. Eventually traced it back to UNSTABLE CLIENT cards and software.

    It's very easy to blame the router. I thought I had it nailed as the router when 2 different laptops with different WiFi cards kept having this problem.

    But I was wrong. When I switched to a more respected brand of WiFi client adaptor and used stable drivers, problems vanished. I can run for days, with any firmware I want on the router (have experimented with 3 projects) and no problems at all.

    Another common problem for some people is 802.1x settings on the client side. It's possible to have this engaged and not realize it. Then the client is trying to go negotiate occasionally for 802.1x and every time it does it will disconnect/reconnect.
     
  6. Mark_Venture

    Mark_Venture Network Guru Member

    I thought about this too. But since I get the same symptoms using either the WPC54G or WL1100C-CF, I was thining router.

    Also, NetStumbler still sees other routers (my neighbors) when mine disappear, I again, was leaning towards the router...

    What cards/drivers did you have? and what did you switch to?
    This is turned off on my XP machines... As is Window's managing my Wireless connections.

    Instead I use either the BroadComm utility or the Linksys utility with the WPC54g.
     
  7. callous

    callous Network Guru Member

    Oddly enough, my v2 WRT54GS also did the same thing. And I would see the router reboot at 23 hour mark +-45 minutes every day. I also noticed the wireless going down occasionally throughout the day.

    The reboots only happened if I ran a bittorrent program. This would continue happening even if the torrent program has finished running for over 10 hours.

    I had the DDWRT firmware and the BT fix and that didnt work, and I am certain I flashed the router properly.

    I have since exchanged the v2 WRT54GS for a v3 GS and have notice no (unexpected/major) problems with wireless drops or reboots.

    My theory is that when Linksys decided to fix another issue with large file transfers by overclocking the router's cpu.. well.. the problems then started showing up. Perhaps the cpu on a sizable portion of the routers simply is not capable of running at 210mhz?

    The v3 coincidentally remains at 200mhz as it has the hardware fix for the large transfer problem.
     
  8. nato999

    nato999 Network Guru Member

    alright, so, a month (and a bit) later, and I've (half) discovered a fix. My adventures continue as such:

    Something else that contributed to signal strength, which I changed first, was unbeknownst to me originally... the router was in a portion of the house that actually stuck out a bit at the front - so, to get a signal to my computer it had to penetrate aluminum siding. Fun. I moved the router. Signal strength went up a good bar or two. Random drops to 1.0mbps still continued.

    The good part: although I haven't updated to Thibor 14 so far, updating to Thibor 13C fixed all of my (random) disconnects. My internet connection no longer drops to 1 mbps for no reason at all anymore... it's a beautiful thing. :rockon: I *still* don't know why it was doing this.

    HOWEVER, now, I very much notice the interference from the cordless phones in the house - obvious ones, such as, internet timing out briefly when my phone rings, and rings only (it's absolutely fine when someone is actually talking on the phone, for some reason), and total disconnection of the internet when someone was on a certain cordless phone when in the same room as the router. I have since moved that phone. :)

    I would like to know if anyone has any sort of utility or *something* of the like that can specifically isolate what frequencies are busy in the 2.4ghz spectrum, or something of the like so I know what channels to muck around with, and can see the changes that I make when I change the channels on my cordless phones?

    Netstumbler doesn't quite cut it, as it only reports ambient noise for specifically the wireless connection (and even then, only a general "noise" value) and I was hoping for something to measure any/all devices.

    Thankya kindly.

    edits: vincentfox; wireless cards et al for the computers in the house work perfectly. Problems were non-existant when using laptop at my school/business location with an unknown router and older linksys WRT54G with stock firmware respectively. Also, on a whim I had replaced the card in my computer hoping it would fix it - it had zero effect. Though, very good suggestion. Thanks for the original input. :)
     
  9. Boc_est1986

    Boc_est1986 Network Guru Member

    WRTG54g V5

    I have a WRTG54g V5 getting the randm dsconects but only recently have been using the router since christmas with no problems. Resest the security settings on all pages of the the 192.168.1.1 admin pages because i was suspicious of a high jack. Have had the problems ever since. Thibor isn't available for the WRTG54g V5 does anyone know of any firmware upgrades that can help me
     
  10. CO-Zman

    CO-Zman Network Guru Member

    nato999,
    If you have not already fixed your wireless phone interference (dog-gone 2.4GHz phones :thumbdown: ), try using channel 1,6 or 11.

    Or...use a trusty 900MHz cordless :thumbup: for conflict-free connections.

    Z
     
  11. I ditched my 2.4 phone to go back to my 900 MHz phone when I started having this problem when I got my wrk54g router. Still having disconnection problems every time the phone rings. So much info to try and sift thru here. One thing I've found for sure is my router is a piece o crap and should be used for target practice... too bad being broke won't allow a new one to leave the store... the store that only had wrk's in stock...f'n f'ers!
    Send me some good vibes to come up with a salution from these 485738327 threads.
     
  12. radom

    radom Guest

    Hi All,

    I have problems with wifi connections on wrt54gs like other people in this thread. I tested this on DD-wrt and tomato and I still get this problems. My two computers are loosing connections at the same time without a reason and router randomly decide when it wants to work again. Anyone have suggestions? It is really annoying. Below I have pasted logs from tomato.

    Thanks in advance.

    Code:
    Aug 12 14:25:43 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:25:43 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.104 00:13:02:7c:53:3d Esterka_Wifi
    Aug 12 14:26:18 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:26:18 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.104 00:13:02:7c:53:3d Esterka_Wifi
    Aug 12 14:26:32 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 00:0e:35:ea:0b:88 
    Aug 12 14:26:32 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:26:32 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:26:32 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.100 00:0e:35:ea:0b:88 Daniel_Wifi
    Aug 12 14:26:57 Router daemon.info dnsmasq[4702]: DHCPRELEASE(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:27:28 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 00:13:02:7c:53:3d 
    Aug 12 14:27:28 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:27:28 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:27:28 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.104 00:13:02:7c:53:3d Esterka_Wifi
    Aug 12 14:27:37 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 00:0e:35:ea:0b:88 
    Aug 12 14:27:37 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:27:37 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:27:37 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.100 00:0e:35:ea:0b:88 Daniel_Wifi
    Aug 12 14:28:04 Router daemon.info dnsmasq[4702]: DHCPRELEASE(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:28:38 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 00:13:02:7c:53:3d 
    Aug 12 14:28:38 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:28:38 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:28:38 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.104 00:13:02:7c:53:3d Esterka_Wifi
    Aug 12 14:29:23 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:29:23 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.104 00:13:02:7c:53:3d Esterka_Wifi
    Aug 12 14:31:32 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 00:0e:35:ea:0b:88 
    Aug 12 14:31:32 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:31:32 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:31:32 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.100 00:0e:35:ea:0b:88 Daniel_Wifi
    Aug 12 14:31:37 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:31:37 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.104 00:13:02:7c:53:3d Esterka_Wifi
    Aug 12 14:31:53 Router daemon.info dnsmasq[4702]: DHCPRELEASE(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:32:02 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 00:0e:35:ea:0b:88 
    Aug 12 14:32:02 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:32:02 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:32:02 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.100 00:0e:35:ea:0b:88 Daniel_Wifi
    Aug 12 14:32:09 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:32:09 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:32:09 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:32:09 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.104 00:13:02:7c:53:3d Esterka_Wifi
    Aug 12 14:32:35 Router daemon.info dnsmasq[4702]: DHCPRELEASE(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:33:06 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 00:0e:35:ea:0b:88 
    Aug 12 14:33:06 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:33:06 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:33:06 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.100 00:0e:35:ea:0b:88 Daniel_Wifi
    Aug 12 14:33:12 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:33:12 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.104 00:13:02:7c:53:3d Esterka_Wifi
    Aug 12 14:33:40 Router daemon.info dnsmasq[4702]: DHCPRELEASE(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:33:52 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 00:0e:35:ea:0b:88 
    Aug 12 14:33:52 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:33:52 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:33:52 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.100 00:0e:35:ea:0b:88 Daniel_Wifi
    Aug 12 14:34:36 Router daemon.info dnsmasq[4702]: DHCPRELEASE(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:35:52 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 00:0e:35:ea:0b:88 
    Aug 12 14:35:52 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:35:52 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:35:52 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.100 00:0e:35:ea:0b:88 Daniel_Wifi
    Aug 12 14:36:10 Router daemon.info dnsmasq[4702]: DHCPRELEASE(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:37:32 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.104 00:13:02:7c:53:3d 
    Aug 12 14:37:32 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.104 00:13:02:7c:53:3d Esterka_Wifi
    Aug 12 14:38:32 Router daemon.info dnsmasq[4702]: DHCPDISCOVER(br0) 00:0e:35:ea:0b:88 
    Aug 12 14:38:32 Router daemon.info dnsmasq[4702]: DHCPOFFER(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:38:32 Router daemon.info dnsmasq[4702]: DHCPREQUEST(br0) 192.168.0.100 00:0e:35:ea:0b:88 
    Aug 12 14:38:32 Router daemon.info dnsmasq[4702]: DHCPACK(br0) 192.168.0.100 00:0e:35:ea:0b:88 Daniel_W
    
     

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