Router drops connection

Hi, I have a WRT300N that acts as a router/DHCP in a small home network. I have a p2p program, DC++, which requires port forwarding to work correctly. I have setup this in the router, port 1412 and the computer ip address to forward to. The problem is that the router drops connection to internet now and then, with 1-2 hrs. intervals which disconnects all hubs and downloads/uploads in DC++. Very annoying indeed. This has never happened with previous routers including a 3com and a Zyxel, so it has to be something with the WRT300N. What can cause this? I'm not sure what information to send with this message, so it's better if you tell me what you need. Thanks in advance, Mattias Sarling

hi... try upgrading latest firmware on the router, go to www.linksys.com/download and download the latest firmware for the router, after upgrading firmware on the router, reset the router back to factory default settings and reconfigure it according to ISP settings, reduce MTU to 1458, try reducing connection on p2p program... also you can enable QoS to manage bandwidth.

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    Sep 28 15:33:15 ryan-axiom mDNSResponder[23]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:021B:63FF:FECA:DA38); network traffic reduction measures in effect
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    Sep 28 15:40:15 ryan-axiom kernel[0]: vmnet: bridge-en1: detached
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    Sep 28 15:40:29 ryan-axiom kernel[0]: vmnet: Port 0
    Sep 28 15:40:29 ryan-axiom kernel[0]: vmnet: bridge-en1: got dev 0x75b0004
    Sep 28 15:40:29 ryan-axiom kernel[0]: vmnet: bridge-en1: wireless interface detected.
    Sep 28 15:40:29 ryan-axiom kernel[0]: vmnet: bridge-en1: up
    Sep 28 15:40:29 ryan-axiom kernel[0]: vmnet: bridge-en1: attached
    Sep 28 15:40:29 ryan-axiom kernel[0]: vmnet: VNetUserIfFree: freeing userIf at 0x7053900.
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    Edit: Just in case you were wondering, I have tried the suggestion in the following thread already: http://discussions.apple.com/thread.jspa?threadID=1620261&tstart=0 .
    Message was edited by: ryan.axiom

    Just adding my two cents since the thread you reference is sooo long now. Glad I'm not the only one experiencing this.
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    Sep 28 17:04:23 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:04:26 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:04:29 administrators-macbook-pro-15 kernel[0]: AirPort: Link Up on en1
    Sep 28 17:04:32 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:04:32 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (192.168.1.150); network traffic reduction measures in effect
    Sep 28 17:04:55 administrators-macbook-pro-15 kernel[0]: AirPort: Link Down on en1
    Sep 28 17:05:00 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:05:01 administrators-macbook-pro-15 ntpd[25]: sendto(17.151.16.23) (fd=27): Can't assign requested address
    Sep 28 17:05:04 administrators-macbook-pro-15 kernel[0]: AirPort: Link Up on en1
    Sep 28 17:05:06 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:05:06 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (192.168.1.150); network traffic reduction measures in effect
    Sep 28 17:05:29 administrators-macbook-pro-15 kernel[0]: AirPort: Link Down on en1
    Sep 28 17:05:31 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (192.168.1.150); network traffic reduction measures in effect
    Sep 28 17:05:38 administrators-macbook-pro-15 kernel[0]: AirPort: Link Up on en1
    Sep 28 17:05:41 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:05:41 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (192.168.1.150); network traffic reduction measures in effect
    Sep 28 17:06:04 administrators-macbook-pro-15 kernel[0]: AirPort: Link Down on en1
    Sep 28 17:06:04 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (192.168.1.150); network traffic reduction measures in effect
    Sep 28 17:06:05: --- last message repeated 1 time ---
    Sep 28 17:06:05 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:06:08 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:06:12 administrators-macbook-pro-15 kernel[0]: AirPort: Link Up on en1
    Sep 28 17:06:15 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:06:15 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (192.168.1.150); network traffic reduction measures in effect
    Sep 28 17:06:28 administrators-macbook-pro-15 kernel[0]: AirPort: Link Down on en1
    Sep 28 17:06:29 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (192.168.1.150); network traffic reduction measures in effect
    Sep 28 17:06:30: --- last message repeated 1 time ---
    Sep 28 17:06:30 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:06:33 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:06:36 administrators-macbook-pro-15 kernel[0]: AirPort: Link Up on en1
    Sep 28 17:06:39 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:06:39 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (192.168.1.150); network traffic reduction measures in effect
    Sep 28 17:07:02 administrators-macbook-pro-15 kernel[0]: AirPort: Link Down on en1
    Sep 28 17:07:03 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (192.168.1.150); network traffic reduction measures in effect
    Sep 28 17:07:04: --- last message repeated 1 time ---
    Sep 28 17:07:04 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:07:07 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:07:08 administrators-macbook-pro-15 ntpd[25]: sendto(17.151.16.23) (fd=27): Can't assign requested address
    Sep 28 17:07:11 administrators-macbook-pro-15 kernel[0]: AirPort: Link Up on en1
    Sep 28 17:07:13 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (FE80:0000:0000:0000:0217:F2FF:FE9C:9555); network traffic reduction measures in effect
    Sep 28 17:07:13 administrators-macbook-pro-15 mDNSResponder[16]: Note: Frequent transitions for interface en1 (192.168.1.150); network traffic reduction measures in effect
    Sep 28 17:08:16 administrators-macbook-pro-15 kernel[0]: AirPort: Link Down on en1
    Sep 28 17:08:26 administrators-macbook-pro-15 kernel[0]: AirPort: Link Up on en1

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    I've tried zapping everything I can think of (PRAM, SMC), repairing permissions, clearing the remembered networks from the System Prefs, deleting old Locations and creating new ones etc. I have a clean install of 10.7.1 that I booted off of, but it still had the same issues!
    Here's the Wifi output from System Profiler (trying to use "Home Network"):
    Software Versions:
      CoreWLAN:          2.1.2 (212.1)
      CoreWLANKit:          1.0.2 (102.2)
      Menu Extra:          7.0.2 (702.1)
      configd plug-in:          7.1.2 (712.1)
      System Profiler:          7.0 (700.3)
      IO80211 Family:          4.1.2 (412.2)
      WiFi Diagnostics:          1.0.1 (101.1)
      AirPort Utility:          6.0 (600.92)
      Interfaces:
    en1:
      Card Type:          AirPort Extreme
      Firmware Version:          Atheros 5416: 2.1.14.9
      MAC Address:          00:XX:XX:XX:XX
      Locale:          FCC
      Country Code:          IN
      Supported PHY Modes:          802.11 a/b/g/n
      Supported Channels:          1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165
      Status:          Not Associated
      Local Wi-Fi Networks:
    Home Network:
      PHY Mode:          802.11g
      BSSID:          80:a1:d7:4a:d0:02
      Channel:          1
      Network Type:          Infrastructure
      Security:          WPA Personal
      Signal / Noise:          -77 dBm / -96 dBm
    MGMNT:
      PHY Mode:          802.11g
      BSSID:          80:a1:d7:4a:d0:03
      Channel:          1
      Network Type:          Infrastructure
      Security:          WEP
      Signal / Noise:          -77 dBm / -96 dBm
    RC:
      PHY Mode:          802.11g
      BSSID:          00:1e:40:57:67:61
      Channel:          6
      Network Type:          Infrastructure
      Security:          WPA Personal
      Signal / Noise:          -97 dBm / -96 dBm
    Vivek:
      PHY Mode:          802.11g
      BSSID:          00:24:b2:94:ea:06
      Channel:          11
      Network Type:          Infrastructure
      Security:          WEP
      Signal / Noise:          -94 dBm / -96 dBm
    nischai:
      PHY Mode:          802.11n
      BSSID:          58:6d:8f:c3:ea:2a
      Channel:          6
      Network Type:          Infrastructure
      Security:          WPA2 Personal
      Signal / Noise:          -90 dBm / -96 dBm
    noor:
      PHY Mode:          802.11g
      BSSID:          00:24:b2:7e:26:72
      Channel:          11
      Network Type:          Infrastructure
      Security:          WPA Personal
      Signal / Noise:          -90 dBm / -96 dBm
    One thread here I read had someone suggesting to run the Airport debugger in Terminal and posting the output - here's the results:
    Sat May  5 09:52:00.823 <kernel> IO80211ScanManager::startScan: Broadcast scan request received from pid 622 ().
    Sat May  5 09:52:00.824 <kernel> IO80211ScanManager::startScan: Initiating scan.
    Sat May  5 09:52:00.824 <kernel> __ieee80211_newstate: INIT -> SCAN (arg 0xffffffff)
    Sat May  5 09:52:00.824 <kernel> ieee80211_check_scan: active scan, duration 24000, desired mode auto, append, nopick
    Sat May  5 09:52:00.824 <kernel> ieee80211_start_scan: active scan, duration 24000, desired mode auto, append, nopick
    Sat May  5 09:52:00.824 <kernel> scan_next: chan   1g ->   1g [active, dwell min 8 max 8]
    Sat May  5 09:52:00.865 <kernel> [80:a1:d7:4a:d0:02] new beacon on chan 1 (bss chan 1) "Home Network"
    Sat May  5 09:52:00.865 <kernel> [80:a1:d7:4a:d0:02] caps 0x411 bintval 100 erp 0x4 
    Sat May  5 09:52:00.873 <kernel> [80:a1:d7:4a:d0:03] new beacon on chan 1 (bss chan 1) "MGMNT"
    Sat May  5 09:52:00.873 <kernel> [80:a1:d7:4a:d0:03] caps 0x411 bintval 100 erp 0x4 
    Sat May  5 09:52:00.909 <kernel> scan_next: chan   1g ->   6g [active, dwell min 8 max 8]
    Sat May  5 09:52:00.917 <kernel> [58:6d:8f:c3:ea:2a] new probe_resp on chan 6 (bss chan 6) "nischai"
    Sat May  5 09:52:00.919 <kernel> [58:6d:8f:c3:ea:2a] caps 0x411 bintval 100 erp 0x4 
    Sat May  5 09:52:00.920 <kernel> [58:6d:8f:c3:ea:2a] new probe_resp on chan 6 (bss chan 6) "nischai"
    Sat May  5 09:52:00.920 <kernel> [58:6d:8f:c3:ea:2a] caps 0x411 bintval 100 erp 0x4 
    Sat May  5 09:52:00.928 <kernel> [58:6d:8f:c3:ea:2a] new probe_resp on chan 6 (bss chan 6) "nischai"
    Sat May  5 09:52:00.928 <kernel> [58:6d:8f:c3:ea:2a] caps 0x411 bintval 100 erp 0x4 
    Sat May  5 09:52:00.992 <kernel> scan_next: chan   6g ->  11g [active, dwell min 8 max 8]
    Sat May  5 09:52:01.47  <kernel> [00:24:b2:7e:26:72] new beacon on chan 11 (bss chan 11) "noor"
    Sat May  5 09:52:01.47  <kernel> [00:24:b2:7e:26:72] caps 0x411 bintval 100 erp 0x0 
    Sat May  5 09:52:01.75  <kernel> scan_next: chan  11g ->   7g [active, dwell min 8 max 8]
    Sat May  5 09:52:01.158 <kernel> scan_next: chan   7g ->  13g [active, dwell min 8 max 8]
    Sat May  5 09:52:01.241 <kernel> scan_next: chan  13g ->  52a [passive, dwell min 8 max 8]
    Sat May  5 09:52:01.327 <kernel> scan_next: chan  52a ->  56a [passive, dwell min 8 max 8]
    Sat May  5 09:52:01.409 <kernel> scan_next: chan  56a ->  60a [passive, dwell min 8 max 8]
    Sat May  5 09:52:01.492 <kernel> scan_next: chan  60a ->  64a [passive, dwell min 8 max 8]
    Sat May  5 09:52:01.575 <kernel> scan_next: chan  64a ->  36a [active, dwell min 8 max 8]
    Sat May  5 09:52:01.657 <kernel> scan_next: chan  36a ->  40a [active, dwell min 8 max 8]
    Sat May  5 09:52:01.741 <kernel> scan_next: chan  40a ->  44a [active, dwell min 8 max 8]
    Sat May  5 09:52:01.823 <kernel> scan_next: chan  44a ->  48a [active, dwell min 8 max 8]
    Sat May  5 09:52:01.906 <kernel> scan_next: chan  48a ->   2g [active, dwell min 8 max 8]
    Sat May  5 09:52:01.920 <kernel> [04:4f:aa:b4:dc:f9] new beacon on chan 2 (bss chan 2) ""
    Sat May  5 09:52:01.920 <kernel> [04:4f:aa:b4:dc:f9] caps 0x431 bintval 100 erp 0x0 
    Sat May  5 09:52:01.992 <kernel> scan_next: chan   2g ->   3g [active, dwell min 8 max 8]
    Sat May  5 09:52:02.74  <kernel> scan_next: chan   3g ->   4g [active, dwell min 8 max 8]
    Sat May  5 09:52:02.157 <kernel> scan_next: chan   4g ->   5g [active, dwell min 8 max 8]
    Sat May  5 09:52:02.239 <kernel> scan_next: chan   5g ->   8g [active, dwell min 8 max 8]
    Sat May  5 09:52:02.321 <kernel> scan_next: chan   8g ->   9g [active, dwell min 8 max 8]
    Sat May  5 09:52:02.388 <kernel> [00:26:15:61:4c:87] new beacon on chan 9 (bss chan 9) "BSNL_AP"
    Sat May  5 09:52:02.388 <kernel> [00:26:15:61:4c:87] caps 0x431 bintval 100 erp 0x0  country info  49 4e 49 01 0d 14
    Sat May  5 09:52:02.403 <kernel> scan_next: chan   9g ->  10g [active, dwell min 8 max 8]
    Sat May  5 09:52:02.486 <kernel> scan_next: chan  10g ->  12g [active, dwell min 8 max 8]
    Sat May  5 09:52:02.569 <kernel> scan_next: chan  12g -> 149a [active, dwell min 8 max 8]
    Sat May  5 09:52:02.655 <kernel> scan_next: chan 149a -> 153a [active, dwell min 8 max 8]
    Sat May  5 09:52:02.738 <kernel> scan_next: chan 153a -> 157a [active, dwell min 8 max 8]
    Sat May  5 09:52:02.821 <kernel> scan_next: chan 157a -> 161a [active, dwell min 8 max 8]
    Sat May  5 09:52:02.903 <kernel> scan_next: chan 161a -> 165a [active, dwell min 8 max 8]
    Sat May  5 09:52:02.991 <kernel> scan_next: done, [ticks 32630, dwell min 8 scanend 56413]
    Sat May  5 09:52:02.993 <kernel> __ieee80211_newstate: SCAN -> INIT (arg 0xffffffff)
    Sat May  5 09:52:02.993 <kernel> ieee80211_init_node[1132] old_auth 5
    Sat May  5 09:52:02.994 <kernel> IO80211ScanManager::getScanResult: All scan results returned for pid 622.
    Sat May  5 09:52:05.765 <airportd[804]> _handleNewMessage: Received XPC message, event = ASSOC_EVENT, pid = 622
    Sat May  5 09:52:05.766 <airportd[804]> associate: INFO: airportd associate: network=<CWNetwork: 0x7f9fd8c11fc0> [ssid=Home Network, bssid=80:a1:d7:4a:d0:02, security=WPA Personal, rssi=-76, channel=<CWChannel: 0x7f9fd8c185b0> [channelNumber=1(2GHz), channelWidth={20MHz}], ibss=0], is8021X=0, remember=1
    Sat May  5 09:52:05.781 <airportd[804]> associate: INFO: Checking if admin authorization is required
    Sat May  5 09:52:05.802 <kernel> __ieee80211_newstate: INIT -> SCAN (arg 0x0)
    Sat May  5 09:52:05.802 <kernel> ieee80211_check_scan: active scan, duration 24000, desired mode auto, append
    Sat May  5 09:52:05.802 <kernel> ieee80211_check_scan: check scan cache
    Sat May  5 09:52:05.802 <kernel>  macaddr          bssid         chan  rssi rate flag  wep  essid
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.802 <kernel> 
    Sat May  5 09:52:05.807 <kernel> 
    Sat May  5 09:52:05.807 <kernel> ieee80211_init_node[1132] old_auth 5
    Sat May  5 09:52:05.807 <kernel> __ieee80211_newstate: SCAN -> JOIN (arg 0x0)
    Sat May  5 09:52:05.812 <kernel> __ieee80211_newstate: JOIN -> AUTH (arg 0xc0)
    Sat May  5 09:52:05.813 <kernel> ieee80211_cancel_scan: cancel active scan
    Sat May  5 09:52:05.813 <kernel> scan_next: done, [ticks 32912, dwell min 8 scanend 56413]
    Sat May  5 09:52:05.813 <kernel> parseWPAIE: groupCipherType = 3 pairwiseCipherType = 3 authSel = 2
    Sat May  5 09:52:05.813 <kernel> initWithInterfaceAndIE: _myMacAddress 00:17:f2:e6:81:a1
    Sat May  5 09:52:05.813 <kernel> setPMK: PMK SET!
    Sat May  5 09:52:05.815 <kernel> ieee80211_tx_timeout: state AUTH
    Sat May  5 09:52:05.815 <kernel> [80:a1:d7:4a:d0:02] ieee80211_scan_assoc_fail: reason 1
    Sat May  5 09:52:05.815 <kernel> [80:a1:d7:4a:d0:02] sta_assoc_fail: reason 1
    Sat May  5 09:52:05.815
    Sat May  5 09:52:05.815 <kernel> __ieee80211_newstate: AUTH -> SCAN (arg 0x1)
    Sat May  5 09:52:05.815 <kernel> [80:a1:d7:4a:d0:02] ieee80211_scan_assoc_fail: reason 1
    Sat May  5 09:52:05.816 <kernel> ieee80211_init_node[1132] old_auth 5
    Sat May  5 09:52:05.816 <kernel> ieee80211_check_scan: active scan, duration 24000, desired mode auto, append
    Sat May  5 09:52:05.816 <kernel> ieee80211_check_scan: check scan cache
    Sat May  5 09:52:05.816 <kernel>  macaddr          bssid         chan  rssi rate flag  wep  essid
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> 
    Sat May  5 09:52:05.816 <kernel> ieee80211_start_scan: active scan, duration 24000, desired mode auto, append
    Sat May  5 09:52:05.816 <kernel> scan_next: chan   1g ->   1g [active, dwell min 8 max 8]
    Sat May  5 09:52:05.834 <kernel> ieee80211_cancel_scan: cancel active scan
    Sat May  5 09:52:05.834 <kernel> __ieee80211_newstate: SCAN -> INIT (arg 0xffffffff)
    Sat May  5 09:52:05.834 <kernel> ieee80211_init_node[1132] old_auth 5
    Sat May  5 09:52:05.835 <kernel> en1: Terminating supplicant.
    Sat May  5 09:52:05.835 <kernel> RSNSupplicant: Releasing authenticator for 00:00:00:00:00:00
    Sat May  5 09:52:05.835 <airportd[804]> associate: Apple80211Associate2() failed with error -3905
    Sat May  5 09:52:21.354 <kernel> IO80211ScanManager::cachePurge: clearEntries[0] Firing!
    Sat May  5 09:52:21.354 <kernel> IO80211ScanManager::cachePurge: Rescheduling in 14 seconds.
    Sat May  5 09:52:35.354 <kernel> IO80211ScanManager::cachePurge: clearEntries[0] Firing!
    Sat May  5 09:52:35.354 <kernel> IO80211ScanManager::cachePurge: NOT Rescheduling.
    I'm pretty savy with computers and have dealt with all kinds of stuff before, but this one is beyond me, and is really annoying! I konw my machine is old, but it was totally useable up until these Wifi issues, and now wifi is basically useless.
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    Anyone out there have any advice? I'm getting close to losing it with wifi since the update!

    Sorry - to add:
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  • AT&T U-verse dropping connections suddenly

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    Hello Javier Bonafont,
    Welcome to the Apple Support Communities!
    I understand that it can be very frustrating when you are having multiple Wi-Fi drops in signal at home. There are a couple of different troubleshooting steps that I would recommend in this situation. Please refer to the attached article for information and steps to help you troubleshoot this situation.
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    Use these steps if your computer disconnects from its Wi-Fi network unexpectedly.
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    Joe

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    Hi there,
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    Thinking it was a hardware problem I secured a replacement from the store but I'm having the same issue.
    I have a PC, Windows 8
    BT Infinity (with their home hub, I'm UK based)
    My Apple TV is wired directly to the hub (I have also adjusted the settings to give the Apple static IP addresses, I've also tried it with automatic IP)
    If I boot everything up from scratch the Apple TV will play both music and my movies (both my DVD rips and those purchased from iTunes store and downloaded to the PC).
    However, let's say when I've done the above I decide to watch a movie that is on the PC, it works and I can watch the full film or even a TV program.  Then I decide I want to watch another film after viewing that one, that's when I get the spinning wheel.  The Apple TV will recognise my iTunes library and display the movies but unless I watch something on the cloud I cannot view what's on my PC hard drive.  Then after a bit the Apple is telling me to turn on home sharing.  It already is on and my PC has no sleep settings activated, I turned them all off so unless I power down nothing will enter sleep mode or even powersave.
    I then have to reboot the PC and open iTunes again.
    Like I mentioned I've taken the first one back for an exchange, the same problem persists.  I've also been on the phone to Apple who advised to power everything down for 5 minutes then turn the router back on followed by the Apple then the PC.  That worked, so I then left it for 5 minutes and then the problem happened again when I decided to watch a film that I put on my PC hard drive.  It seems that I have to choose what I want to do quickly but it wont work with further requests after something is played. 
    I am using the inbuilt virus checker that comes with Win 8 (Elements I think it's called) and I use Windows Firewall.  I have tried creating a rule to allow iTunes to connect out on the firewall settings but this did nothing.  I've tired automatic IP addresses and now trying static ones but again, no joy.  Bonjour has been uninstalled, reinstalled, opened up connections in the firewall, basically everything I've read on this issue I've done.
    I read somewhere about turning off the Dolby Stereo, and yes, you guessed it, nothing corrected it.
    Has anyone had this problem exactly and any idea how to overcome it.  Apple have suggested a clean reinstall of my PC, so I tried it, wiped everything and started again.  Nothing, so I tried it on my laptop which has Windows 7 and it seems it's not localised to just one specific version of Windows.
    Getting a bit fed up now! 
    As a last ditch attempt I also checked the serial number to see if it was an old unit that needed to be replaced but it's not.  Oh, and I have also tried wireless and wired.  That didn't change anything.
    One interesting thing though, when looking at the settings for the BT Home Hub and looking at devices, when I know the Apple TV is connected it's showing as not connected.  It appears as though it is dropping connection after it has perhaps synced the whole film from the PC.  I can't think of a way to force it to stay connected.
    Any suggestions?

    UPDATE
    This is now resolved, not with the use of the Homehub though.
    After another conversation with Apple they asked me if the Youtube app on the TV works, which it does then there's a problem elsewhere!  Therefore Apple think there's an issue with the hub or the home network.  They also asked me to try something on the hub called Port Forwarding.  However, because that the hub isn't an Apple product they are not allowed to advise me on tinkering with the settings.  But did suggest to Google a website called port forwarding. 
    Having a look at that I tried what it suggested by connecting to the BT Homehub, you guessed it, that didn't work either.  I called BT who advised that their technical help team that would deal with this has been disbanded and the person I spoke to gave me the port forwarding suggestion on Google.
    At this stage I had had enough and after reading a few more bits of feedback I then looked at replacing the hub with something I could buy myself.  This led me to Amazon where I purchased the ASUS RT-N56U and a modem to go with it.  I ripped out the hub and linked the modem to the line in the wall and the router to the modem, I had to bridge the router to the modem and after that was done I set up the wireless.
    I'm now very pleased to say that it works, everything is syncing as it should do and the speeds of my downloads have also increased.  So far no issues at all.  I also have a constant connection to the PC and can view as many films as I want that are downloaded to the PC.  No lagging, no problems at all.
    Bit of an expensive solution but the modem and router I bought can also replace a Virgin one should I change suppliers in the future.
    If you follow this solution and are doing it the same with BT just Google the username for the hubs as it's the same for everyone, you can get that username from the hub if you connect to it but if you're like me and didn't think of that all the solutions you can google.  I used the CD's that came with the items and I had it all set up and running in 5 minutes.  If you do purchase the RT-N56U don't forget you need a modem, as that bit I forgot about and then had to order that via Amazon as well.
    That's really all you need!

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