Cisco WAN :: Http Connection Failures After Installing C2960G Switches
Mar 7, 2012
I have seen this at two sites now: after migrating the site T1 to 10-Mbps Opt-E-MAN and replacing old 10/100 switches with 10/100/1000 switches, users frequently get http connection errors. The error goes away if the user reloads the page--sometimes they have to reload more than once. They never had this problem before.I thought it was due to the large number of 5-port desktop switches infesting the networks (I'm getting rid of them as fast as I can) but it happens even on a PC directly connected to one of the new GigE switches. It does not happen when accessing internal web pages. It looks like a DNS failure -- but nothing has changed in our DNS setup, except that users have a fatter pipe to our DNS servers.
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Dec 18, 2011
We're getting "Connaction Timeout / Connection Failure" error messages several time per day. Here is our setup:
Verizon FiOS Internet (ONT Box) --> Cisco ASA 5505 --> EdgeMarc 4500 Router --> Cisco 300-24G Switch --> Dell PE1950 Servers
From past few months, we keep getting Connection Timeout and Connection Failure error messages in our vendor application which connects to SQL Server 2005. Also Terminal Server 2003 keep disconnecting for every few hours.After several days of troubleshooting, we come to know that this Cisco ASA 5500 is not working properly. When I access the ASDM, it shows several warning messages.I know there is a setting option to configure TimeOut, but is there anyway to test and track the ASA 5500 regarding this Timeout issues?
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May 6, 2013
Installed Cisco AnyConnect Secure Mobile Client on a new Asus CM6870, downgraded to Windows 7 Pro. It worked fine for 3 days, establishing VPN connections with my workplace without a probllem. Then it repeatedly failed to connect.
I attempted an uninstall/re-install, and the install now fails as well, returning the following error: The VPN client agent was unable to create the interprocess communication depot. When I do manage to get it re-installled, it works sometimes, then fails to establish connections other times. I am not an IT professional, so trying to diagnose the issue by reviewing the Windows/Inf/setupapi.app.log and .dev files is a no go. I do not hold a contract with Cisco so I am not authorized to open a support ticket, or receive phone support (again, I tired).
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Jan 29, 2011
I leave on one of my computers on all the time, an Acer desktop with Windows XP. I also have two laptops. I have Verizon DSL and a linksy wireless G router. When we have a power outage the Acer desk top loses it's internet connection. Trying to reconnect the connection takes hours. Even when we finally get it back we have no idea how we did it. The laptops which of course were off have no problem.
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May 26, 2011
I need to confure 3 ESW-520, 2 24 ports and 1 48 ports, connected in etherlink on the same vlan. One of the 24 ports and the 48 ports works perfectly, the other 24 ports it working, i can use it as a flat switch, i can also access from the console, but i can't access from the http configuration utility. I upgrade the firmware, and set the vlan 1, the one i'm using as the only management, but i can't access ti the default ip 192.168.10.2. It's the switch broken or i'm making some error?
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Apr 20, 2011
Never seen a Cisco, or any other L3 switch before. Nor an Lx router. Any step by step,or class room or web based training, or a partner or Cisco helper to get us up to speed on this.Goal is to limit http and https traffic in favor of telnet to an AIX server and RDP to a Windows TS. Printing would be ahead of http/s and below the others.
Interstingly, the web site promises 9 videos, but there are only 8. The demo guide says about OoS: "Coming Soon".Where to go? Who(m) to call?
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May 23, 2012
I bought a new router last night in an attempt to fix some internet issues. I replaced my old router (an N150 lynksis) with the one I bought (an N300 netgear) and after getting all the wires connected, my computer wouldn't connect to the internet and it wouldnt recognize the router as anything other than "Unidentified Network". I've tried reseting and power cycling the modem, shuting down the computer, even some random tips from the internet but nothing seems to be working.
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Jan 5, 2013
I just purchased netgear N150 single band wireless router WNR1000v3. I cant get to the 192.168.9.1 site to detup manually and when i insert the set up CD it scans the config & says that my ethernet adapter isn't intstalled or enabled....I HAVE A CABLE FROM THE SATELLITE MODEM to my computer which works fine when I am connected direcrtly to it, so I dont get what the problem is. Do I need a different cable connecting my computer to the LAN on the router or am I missing something?
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Oct 22, 2011
Prior we only had 62.5u multi mode.I've got 3750x switches and new SM SFP and yellow fiber patch cables. None of my links show connected. No lights and trunk port interfaces show down/down.
Is there a special command you have to do on a port when using SM fiber? Do you think I need cross over fibers?
Also, should I be able to see a laser signal light like MM or is SM a different frequency so it's not as visible as MM?
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May 9, 2012
I am testing out some inspection options on an ASA 5505, and I am running into a situation in which applying a http inspection is dropping all outbound http traffic. I get a "protocol violation" error in the logs.
Here is the setup: I'm not sure why the web traffic is getting dropped.
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
[Code].....
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Oct 11, 2012
I'm somewhat new to networking so bare w/ me if I get some of the verbiage incorrect. We are trying to upgrade our 2960G's to a new version of code (c2960-lanbasek9-mz.150-1.SE.bin).After doing:switch(config)#boot system c2960-lanbasek9-mz.150-1.SE.binand a write mem, we did a reload, but the new version didn't take. We realized that the boot loader version is too old to accept this newer IOS. Here is the how version output:[CODE]
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Feb 20, 2012
Toshiba Portege, I have tried downloading their DriverTuner.exe and transfering it via Flash drive but it comes up with "Entry Point not found".
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Dec 1, 2012
I have a WRT54G2 V1 linksys wireless router. I was going to upgrade it to DD-WRT and install it at my mother's house. It was working before upgrading it to dd-wrt. I followed the directions located at:Linksys WRT54G2 v1.0 - DD-WRT WikiAfter following the directions and doing a hard reboot I was able to log into the router but was unable to connect to the internet via WiFi and/or Ethernet.My internet enabled TV and wireless labtop detected the ssid made by the router but could not connect to the internet. I am able to connect to the internet using a old Netgear WGR614 v6 router.
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Feb 3, 2013
The white page keeps saying can not display web page. Network Diagnostics says Network connection; Connected
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May 26, 2011
I am replacing an old Fw with a New ASA 5510 and I have a problem with a TCP Connection on My LAN InterfaceI joined a picture of what I want to do. [code] From the PC,I can Ping the Video Camera But I can't connect to it with HTTP.I don't understand, Packet Tracert allow the Http packet too. [code]
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Jun 8, 2011
I am configuring a new ASA 5510 to replace a SonicWall and I have a problem with an HTTP Connection inside my LAN.PC from the LAN ( using ASA LAN interface as gateway) can't Connect to a Camera video Web Server (192.168.4.20) on Port 80 whereas I can Ping it.
ADSM logs show :
106015# Deny TCP (no connection) from ip1 to ip2 Flags RST on Interface LAN.The adaptive security appliance discarded a TCP Packet that has no Associated connection in the adaptive security appliance Connection table.
- I Enabled command "same-security-traffic permit intra-interface"
- HTTP inspection is disabled.
I used Capture feature on the Ingress Interface, I joined the Logs and a part of my ASA Running Config.
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Mar 1, 2011
I have Site(s) Ani....i=1,..10 sites which communicate with site B to access a website/application. That's simple enough. However, the traffic is http well we primarily don't need https on ipsec tunnel right?. But since attacks related to eavesdropping of traffic come a real reality once it gets terminated by the ipsec device on both side.I have two options either to purchase a third-party ssl certificate to encrypt the traffic between two nodes or use a custom made one.I don't want to use a custom made one because this make the browser prompt an ugly untrusted certificate message; its ugly not from security perspective but for clients inconvenience and assuring users confidence in our systems is a critical issue for us. ?
a) How its possible to remove ugly certifcate message from user screen? Does the company need to register its certificate to some kind of CA body? or what ...
b) Due to some tcp acceleration issues, ssl traffic slows down the traffic between the nodes so we only require the encryption to stand just during the initial handshake when the username and password are being validated ; after that we want to revert back to http?
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Feb 5, 2013
Since a few days, when I go on Web with my cable connection, the pages of sites stay on a blank page and that does not connect. Having made diagnose, I had the following message:The distant ring road(peripheral) or the resource does not accept the connection.The ring road(peripheral) or the resource [URL] is not configured to accept the connections on the port " Web Service (HTTP) ".I phoned at my FAI ( Videotron) and having discussed for a long time, it happened at the conclusion that it was a problem of router (when I connect the computer directly on the modem, that works very well).Of an other one quoted(esteemed), a connection Wireless telegraphy works with no problem at all, fortunately because I shall not be here.I am to go to my router D-Link Dir-835 and I returned to the former(old) protection(saving) of the configuration. And now that re-works again. But the enjoyment was short-lived because this morning, the problem returned.What do you think about it? I Should make a reset of my router even if it means re-configuring everything again?
[URL]
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Feb 25, 2013
I have been asked to install a ASA5505 on a home network. The home network has a home broadband connection which the ISP provider supplies with an IP address. This is only for 6 weeks until the new line comes in. I know this is going to cause problems but we have no choice but to impletment this.
My questions are below.
1, We have a home hub supplied by the ISP which is configured by an IP address which is NOT static. Can we not use the ASA 5505 instead. I know that if our ISP change the IP address we have to change the IP address on the 5505.
2, Will we be able to use the home network broadband to create a secure connection?
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Nov 13, 2012
I have a user named "testuser" and trying to authenticate from the xp computer but fails to authenticate. The ACS logs says that authentication failed, the user is in the local database but why it fails to authenticate?
I have cisco switch :
WS-C2960G-48TC-L 12.2(52)SE C2960-LANBASEK9-M
*Mar 8 04:03:55.030: AAA/BIND(00000029): Bind i/f
*Mar 8 04:03:55.173: %AUTHMGR-5-START: Starting 'dot1x' for client (782b.cbc9.a027) on Interface Gi0/2 AuditSessionID 0A6A00200000001924EBD428
*Mar 8 04:03:57.010: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed
[Code]....
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Jan 8, 2012
went to uninstall the other two and then went to install our new one on the main computer.I have now lost connection with the wifi to this pc and only this one. (the internet still works on two laptops) unfortunately i need this computer for work and therefore need the internet quite urgently. Perhaps uninstalled something by accident and if so what is it and what can i download?
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May 4, 2011
I am using ASA 5510 and I have a specific problem with Http Connection to receive a video Flow ( RSTP protocol ) in the LAN. Some Pc users (192.168.1.133,in the log) with ASA Lan Interface as gateway can ping the Camera but don't receveive the video flow.Some Pc users (192.168.1.116,in the log) using another gateway can ping and receive the video flow. I used Whireshark to capture traffic between camera and Pc using the 2 gateway. I joined Logs with this message.It seems to be a problem of TCP segments on the ASA, I try to changed some TCP options but it's still the same:- Disable Force Maximum Segment Size- Enable Force TCP Connection to Linger in TIME_WAIT State for at Least 15 Second.
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Mar 10, 2013
We have ASA5520 and we want to configure a VPN IPSEC profile so that a partner of ours can access only a server and only on HTTP port.I've tried configuring split tunneling with an Extended ACL but probably I'm missing something. I just configured the ACL so that it included any source to our server's IP on HTTP port but when testing, it didn't work.
However, if I configure a Standard ACL on the split tunneling I can access the server and all the services it provides.Do you know if I'm missing anything on the Extended ACL configuration?
Should I configure this any other way?
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Sep 4, 2011
I configured an Etherchannel two interfaces (Gi0/37 and Gi0/39) in a CiscoWS-C2960G-48TC-L, which is connected to an HP Blade, where they spend 2vlan (16 and 17). The point is that they got these interfaces on a trial and upload these were in sleep mode produces the following log.
Sep 1 16:04:38.649:% EC-5-CANNOT_BUNDLE2: Gi0/37 is not Compatible with Po1 and Will be suspended (trunk mode of Gi0/37 is dynamic, is Po1 trunk)
Sep 1 16:04:38.733:% EC-5-CANNOT_BUNDLE2: Gi0/39 is not Compatible with Po1
and Will be suspended (trunk mode of Gi0/39 is dynamic, is Po1 trunk
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Sep 19, 2012
I am facing port speed issue on WS-C2960G-48TC-L series switch.This switch gig0/X ports connected to onother switches (Cisco and HP both switches are also gigbit ports and directly connected ).but interface is giving only 100mb/s output.ios on WS-C2960G-48TC-L is 12.2(44)SE6
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Jul 4, 2011
Default Gateway of ISP----> Switch------->Router
From my router, I can ping Gateway, however I cant ping the switch (WS-C2960G-8TC-L) in between.
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Jan 16, 2013
I managed to upgrade this C2960G-48TC-L from 12.2.35-SE5 to 15.0.2-SE1 and now I can't connect anymore via telnet nor ssh. Console output simply shows
%% Low on memory; try again later
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Jan 24, 2011
I lost my network connection after installing Microsoft office 2010.. what can I do to get it back ? I know it is this as i have been fussing with my computer all day.. I created a system restore point just before I installed it.. had network connection.. installed office 2010 and now once I rebooted I dont.. I am running Win 7 enterprise.
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Oct 24, 2012
We have an RV082 (firmware 2.0.2.01-tm),with an ADSL connection over PPPoE. It connects fine, and I can ping anything, and I can also access websites with HTTPS, but when trying to access any website with HTTP, it doesn't work.There's no load balancing going on, and it's the same whether we have the Firewall turned on or off, and everything else is pretty much as default.
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Feb 20, 2012
How do I do a factory reset on a Cisco Catalyst WS-C2960G-8TC-L switch?
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Dec 9, 2012
Region : Netherlands
Model : TL-WR1043ND
Hardware Version : v1
Firmware Version : V1_120405
ISP : UPC
After buying and installing i get no wlan/wifi connection.I do have internet by ethernet, the laptops and ipad sees the wlan/wifi but get no connection? Resetting re-installing manualy or with the wizard doesn't work.
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Jun 22, 2012
I have couple C2960G and C3750. Is there any way to filter (on ingress port) type of traffic? I would like to allow IP only, and discard (i.e.) IPX, or other garbage, that any device can produce.I have tried to find something about this, but only thing I have found is feature : protocol filter, which doesn't seems to be working on my hardware.
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Nov 8, 2012
My netbook keeps getting DNS Lookup Failure messages. This happens about every 20 minutes, give or take, though sometimes it can go longer before the failure. I can "solve" the problem by quickly repairing the network connection, but that's tedious. It happens only on my laptop and not on my housemate's desktop (wired connection) though he did say that it happens to him on his laptop as well. In looking around I thought the problem might be because i'm using Chrome, but it happens on Firefox and Opera as well.
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