All Of A Sudden PC Refused To Access Internet
Apr 23, 2011
My PC is connected via Ethernet cable to my Sky Broadband box, which also provides internet access to my laptop. Yesterday, all of a sudden, my PC refused to access the Internet. Whenever I try to go on any website through Mozilla, it says server cannot be found, for any site. My Network Status says it is fine, and my laptop still works perfectly, but my home PC all of a sudden just can't surf the Internet. Weirdly, a couple of my games can still work online, though and chat clients like IceChat are unable to, aswell as VOIP clients such as Raidcall. I have no idea what it is, since my Internet was fine the day before this hapened on my PC. I've been through the usual steps of checking your cable, restarting router, diagnosing connection etc, but it still fails to work.
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Feb 6, 2011
All of a sudden one laptop can't access internet. I've tried everything I could find on Google. Can't access wirelessly (although computer IS connected to the router, no problem) OR even when I directly connect via ethernet. Other computers in household are having no problems whatsoever. Laptop in question (Dell Inspiron 11z, Windows 7) was working FINE until yesterday morning. Nothing I did (deliberately) to the computer (i.e. no downloads, new programs, etc.). Just stopped working. I'll see if I can list some of the stuff I've tried (in addition to the obvious rebooting, restore points, etc.): DNS flush winsock reset ipv4 reset ipv6 reset release and renew DNS.
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Jan 16, 2011
All of a sudden, I can't access my router. It's a Netgear WNDR3700. It's flawlessly, in fact still works flawlessly except I can't access it via 192.168.0.1. The only thing that has changed perhaps is that AT&T repair a DSL problem a few weeks ago, but they never touched my router.
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May 23, 2011
I built my desktop, installed the ethernet drivers, and a week goes by no problemsAll of a sudden the internet stopped working so i reinstalled my ethernet driver and no internet still. So to make sure it wasn't the ethernet cord i plugged it into my xbox and xbox live came up
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Apr 20, 2012
I am coming with a new question this time, I have a problem with my windows xp, I have installed the drivers, and everything works just fine, But, I have problems with my internet, It will disconnect SUDDENLY from internet, (whatever I am doing, music,drawing in pc and stuff) In my network list I can still see My modem, But When I will try to connect to it It will say "unable to connect to Pas-Home"
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Jul 28, 2012
My Belkin "ADSL 2+ Model with Wireless G" router suddenly stopped allowing wireless access this afternoon - right in the middle of use - although the wired connections to that router still work fine. No settings seem to have been changed on the router, and I'm the only one with access. Two phones and a laptop that normally work fine just won't get an connection. The laptop - running windows 7 - says the configuration saved did not match what the router was asking for. I tried another computer that doesn't normally connect by wireless and was prompted for a WEP key - which is odd because the router is configured for WPA/WPA2 AES access with a 9 character pre-shared key. After trying a key unsucessfully I haven't been able to get that prompt up again.Meanwhile I've gone into the router settings and it's definitely set to ask for WPA/WPA2. There are some WEP keys specified if I use the drop-down menu to select WEP, but I can't get any device to prompt me to enter one now.
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May 12, 2012
While playing the online game League of legends i suddenly lost internet connection. when loading pages some will not connect and I'll get a message saying I'm not connected and should try reloading, refreshing the page usually fixes the problem, occasionally multiple refreshes are necessary. I've never had this problem before and it's rather inconvenient for me as I need internet access for university.
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Aug 19, 2012
the internet today became insanely slow (I have wireless fyi) , something like 100 kb/s which used to be 2.0 mb/s. I can't even load a YouTube video at 360p. A few things have happened recently which may be the cause. First, I left my computer on all night, but since it has been off, so I don't think thats it. My mom recently turned off my computer by holding down the power button. I have searched my computer for viruses with 4 different programs and nothing has come up. I have also restarted my router and modem multiple times and nothing has happened. AND, I did a 3 hour long fragmentation of my hard drive/ cleaning of the computer.
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Nov 5, 2012
It's a 64 bit machine, with windows 7. He fills out surveys and gets money from them, and I don't like to work on his machine because of this. But... He called, so I came over and Anyhow... I'm worried that the Ethernet has gone bad on the motherboard, but they bought a USB stick for wireless internet, and that didn't work either.I realize I have basically no worth while informationHis router works fine, if you plug in another computer it can connect to the internet, but his computer can't. Something is turned off as far as I can tell. And I can't figure out how to turn it on.
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Jan 21, 2012
I have a Gateway Laptop running Vista.I also have a netgear router. All of a sudden one day the internet on my laptop died. The laptop previously worked on my network, nothing changed with the network. All my other computers are running fine just this one laptop decided to quit connecting one night.
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May 24, 2011
I built my desktop, installed the ethernet drivers, and a week goes by no problems. All of a sudden the internet stopped working so i reinstalled my ethernet driver and no internet still. So to make sure it wasn't the ethernet cord i plugged it into my xbox and xbox live came up.
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Nov 10, 2011
I am cascading a wrt160n (R1) and a wrt160nl (R2) which are hooked up LAN port to LAN port (via a DLink power line adapter). R1 is hooked up via dhcp to the internet. The whole system works wonderfully for several hours until all of a sudden wireless access to R2 ceases to work (though I still can access everything wired). [code]
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Sep 1, 2012
I can ping 192.168.1.254 gateway for about 5 seconds and lose the Ethernet connection.On IE nothing happens.Is there any tool I can use to find the router address or update firmware or restore factory default settings.
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Mar 26, 2012
I get the following error:
SyslogCollector - [Thread: SyslogObjectForwarder] ERROR, 27 Mar 2012 09:02:12,254, Could not send syslogs, removing the subscriber...Connection refused: connect
SyslogCollector - [Thread: SyslogObjectForwarder] ERROR, 27 Mar 2012 09:03:15,223, Could not send syslogs, removing the subscriber...Connection refused: connect
Syslog subscription seems ok but syslog messages are dropped and not forwarded:
I attached SyslogCollector.log, SyslogAnalyzer.log, AnalyzerDebug.log
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Oct 26, 2011
i have to get a 2811 acting as a terminal server?
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Apr 11, 2013
We just replaced our ancient 6509 dedicated SAN switch with a Nexus 5548UP (with 4 2248 FEXs).Our old SAN 6509 was completely separated from the Core 6509, and that Core 6509 doubled as a Datacenter switch. We've now segmented the "Datacenter" and "Core." The SAN and servers are connected to the Nexus gear rather than the Core. The old SAN had only 3 vlans. One for SAN data (Vlan16), one for management interfaces (Vlan250), and one for switch management (Vlan15).
As part of my cleanup, I want to get rid of that Vlan15 and use vlan250 for switch management. In another building, we have a 3750 that provides SAN (Vlan16) and management (Vlan250) connectivity to a single Equallogic box and a Dell PowerVault tape drive for backup purpose. That 3750 is the only device that still has an address on Vlan15 (other than the core). Refer to the drawing below.
The Core 6509 is the gateway for Vlan250 and Vlan15. I have created an interface for Vlan250 on the 3750. ACLs exist on vty connections of each switch allowing telnet access ONLY from the Mgmt 2960. There are no ACLs on the Vlans themselves.From the Mgmt 2960, I can telnet to the 3750 using either its Vlan250 IP address or its Vlan15 IP address. However, if I shut down Interface Vlan15 on the Core 6509, I can no longer telnet to the 3750, not even using its Vlan250 IP address.
The connection times out. If I attempt to telnet to the 3750 via Vlan250 from the Core 6509, I get connection refused (which I should get due to the ACL on the vty connections). I can still telnet to other devices on Vlan250 (such as the management interfaces on the Nexus 5Ks). Why am I able to telnet to the 3750's Vlan250 Interface only when the Core's Vlan15 Interface is Up?
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Oct 25, 2011
When i access a url with http, it works fine. But with https it dosen't work, and get the message on the firefox as "The proxy server is refusing connections Firefox is configured to use a proxy server that is refusing connections. Check the proxy settings to make sure that they are correct. Contact your network administrator to make sure the proxy server is working.
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Jul 23, 2012
my firewall log is full of entries listing policy violations rejections. These look like traffic from LAN to WAN that is being rejected, right? [code]Noted that most of the rejections are in the 40,000-60,000 port range.
-new RV042G
-WAN 1 set to 10.x
-LAN 192.168.1.1
Action Interface SourceInterface Source Destination Time
1. Allow All Traffic [1] LAN Any Any Always
2. Deny All Traffic [1] WAN1 Any Any Always
3. Deny All Traffic [1] WAN2 Any Any Always
Have tried re-flashing firmware to current version (was already on it), disabled SPI, disabling Denial of Service, all no change.Also noted another issue with logging; bug? When the router was brand new out of box and again after firmware flash:
* the "All" drop down of System Log was BLANK, not logging any entries although other drop downs such as "System Log and Firewall Log were
* email alerts were not being triggered for log entries
* clear log button appears to resolve the issue after which the ALL shows all entries now
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Apr 26, 2011
I am trying to telnet to my asa 5510 from the core swith,however i received the below msg,how enable it?
172.30.1.100 is the inside interface of the asa
CITYCORE#telnet 172.30.1.100Trying 172.30.1.100 ... % Connection refused by remote host
CITYCORE#
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Jan 23, 2013
Region : Australia
Model : TD-W8968
Hardware Version : V1
Firmware Version : 0.6.0 1.1 v0005.0
Build 120926 Rel.27100n
ISP : Bigpond
I am trying to setup port-forwarding (6360 for IP 192.168.1.111 & 6361 for IP 192.168.1.112) on this TD-W8968 modem. But when I test it on [URL]. I get a message "connection refused".
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Nov 16, 2011
I have a 3845 router. Setup SSH Version 2generated rsa keys (1024)set login localtransport input ssh and telnet is enabled since I can't get ssh connection working When I connect using SSH, I get the following error. server refused authentication protocol.
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Jun 26, 2011
I've had my DIR-615 since December 2009, and have never had an issue to date. I've used my XBOX, Nintendo DS, iPod touch, and my laptop with it with no issues. Well, yesterday, my mom decided to switch ISP's from Qwest DSL to Xfinity and I thought that if I plugged it right in, it would work since the setting's hadn't changed. Well, that didn't work. I can access the internet with the modem plugged straight to the computer but I still need to be able to access wireless to keep the home free of war, So thinking that I needed to look at the settings by going to 192.168.1.0, I tried. And tried, and tried again. And it says the same thing every time: that the page is not available. In the past, I've done it to change the settings for my DS but sometimes it took me to the Qwest page for it
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Jan 25, 2012
About a week ago i started experiencing very slow download speeds... things like streaming online videos and having to wait which i have not had to do for the last 4 years. I did a speed test on multiple sites and my download speed comes out at about .2mbps and my upload is still where it should be at .6-.8mbps. I have a 12mbps connection so this does not make sense at all. Originally thinking it was malware, I formatted both my hard drives and did a clean install of windows 7 and it did nothing to resolve the issue. Could it be that my wireless card's radio is failing?
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Apr 4, 2011
I suddenly could not go on my web-site anymore(this situation happend a lot already),I went to the server to see whether Apache was running and serving the web-site,tested it locally and it worked,then i checked if my external IP changed, it remained the same.And I know, if i reboot the router 1 or 2 times it will get back to normal, but probably stop working later again. I enabled inbound logging on my router and all of a sudden it shows me this picture of a blocked connection to port 80(even though the ports are forwarded).
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Jan 21, 2011
My Download Speed was about 10mbps and i be came around 1-5kbps.Is there any software for internet connections like just choose your download and upload speed then restart your computer and your download and upload will be very fast then anything
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Nov 13, 2012
We pay for the 12 Mbps package from Comcast and speedtest.net shows that we get a roughly 18 - 19 Mbps connection. We have 4 computers connected to the network, one hard-lined and three wireless.
Usually it is not a problem for my roommate and I to play online games like TF2, Eve, Minecraft, L4D2 with C3 voice chat on our desktops while I simultaneously stream something from Netflix across my laptop.
Lately though, something has changed.
Now, whenever I am using my desktop and playing a game or downloading something (at roughly 2 Mbps) it seems to hog ALL of the bandwidth from the other computers on the network as Netflix suddenly begins having buffering issues on my laptop (wireless) and on my roommate's dektop.
As an example:
For the past few days my roommate and I have been trying to play Minecraft, we use C3 to voice chat while we play and I ALWAYS stream something across Netflix while we play. So in this instance we have one hard-lined connection and one wireless connection running Minecraft (across the LAN) and C3 (across the web) and one additional wireless connection streaming video from netflix (NOT HD Video).
This is common usage for us and it has NEVER been a problem in the past, but in the past few days this setup causes my desktop to lose bandwidth which forces my friend out of the game and causes latency issues with the voice chat program (sound breaks up and my roommate hears my voice chat nearly a minute after I've spoken).
Also, it seems that when my desktop (wireless) connection is working fine using around 2 Mbps, it seems to kill my laptop's (wireless) bandwidth and on one occasion the other night seemed to also affect my roommate's desktop (hard-lined) bandwidth while he was watching something on Netflix.
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Aug 3, 2011
I have CISCO 7206 router with NPE-G2 and 2 gig of memory. There's a vpn and pppoe servers on this unit and it hold maximum of 250-300 simultaneous connections. Periodically (1-5 times/hour) router suddenly reboots with lots of messages in console:
IPFLOW: Warning: V5 overfill -Traceback= 0x14975E4z 0x1A133F4z 0x1A16CC0z 0x1A17754z 0x1A17870z 0x3337874z 0x28F80Cz 0x66A704z
*** System received a Software forced crash ***
[Code].....
I googled about first "V5 overfill" but no luck, i analyzed crashifo's with cisco tool and it said - it is ios problem, but if i change ios - problem lives again, no matter which ios i use.
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Apr 3, 2012
Three days ago people started complaining that it seemed slow. It's supposed to be 100mbps fully switched, but I'm getting speeds of 2mbps - 12mbps (at most) between two workstations on the same switch (which is just insane). I did happen to notice on a couple of the Mac OS X machines that the send and receive errors are off the charts (50% - 80% error rate)!!! This seems a bit suspicious to me.
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Mar 11, 2013
Router: Netgear WNR2000v2
For a long time now, my router has been running fine with my devices. Now all of the sudden, some devices(my xbox, 3ds, and phone) cannot connect to the internet despite them picking up the signal. The weird thing is, the computers in my house and my PS3 can connect. I also don't think it's my security settings(TKIP and AES hybrid) since they all functioned fine with that before this problem.
I tried unsecuring my network as a test, but it seems that only my phone can connect while my 3ds cannot. I haven't tested this with the 360 however. I also tried resetting my router to factory defaults three times.
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Jun 24, 2012
Five Cisco 1142 integrated in WDS infrastructure: 4 - AP, 1 - WDS with AP... At once on all access points loading of the processor increased to 100 %. And "show proc cpu" - in total in norm, log on all cisco identical below:
(Cisco IOS Software, C1140 Software (C1140-K9W7-M), Version 12.4(25d)JA1, RELEASE SOFTWARE (fc1))
Start problem...
Jun 25 16:11:58: %DOT11-6-ROAMED: Station f0cb.a123.d6f9 Roamed to 0c85.257f.05d0
Jun 25 16:11:58: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station f0cb.a123.d6f9 Reason: Sending station has left the BSS
Jun 25 16:23:36: %LEAPCL-3-TIMEOUT: AP Timed out authenticating to the WDS
Jun 25 16:23:42: %WLCCP_AP-6-INFRA: WLCCP Infrastructure Authenticated
Jun 25 16:23:44: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating Station a088.b405.7320
Jun 25 16:23:44: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating Station 0021.5dbf.a3da
[code].....
The problem suddenly began, proceeded about an hour and also suddenly ended...
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Aug 3, 2012
a client of mine has a RV042 and uses it to work off site via PPTP server. It all worked fine until Friday, when it all of the sudden started spitting 619 errors saying the port was closed. The client laptop is a Window 7 Pro machine and we use the Windows VPN client to connect. I made no changes to router or client. I disabled the firewall on the client for one connection try, just to make sure and the outcome was the same. The setup of the PPTP server on router and the VPN connection on the client were so simple when I did it initially, that I'm now kinda lost and don't know how to troubleshoot it.We switched from QuickVPN to PPTP because we had a bunch of issues with QuickVPN and Windows 7 client is much faster.
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Mar 15, 2011
Up until recently (4 months ago) my network was fine. However, all of a sudden the network began to drop randomly. Now, the network drops about every 30 mins. Its quite an inconvenience, especially as there are two laptops, a desktop and 2 games consoles running off of the network (not all at once though). I have a Belkin Wireless G Plus MIMO router.
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Oct 31, 2012
My Linksys E3200 has no wireless access to the internet. Wireless devices show they are connecting to the router, but cannot access the internet.
The router had worked fine until suddenly no internet access. Mac network diagnostics show that the connections are correct until the ISP and Internet which show either yellow or red.
The router's homepage shows no changes in configuration. Ethernet connection works fine.
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