Protocols / Routing :: Network Hangs And Stuck Up?
Dec 26, 2011
I was working as IT Support in an encoding company. I support over 500 desktop users. my problem is about in entire network because i always encounter hang network in my grave yard shift. Our network system set up have domain server, antivirus server, database server, 4 PC's use as backup servers and 3 unit of network attached storage and approximately 500 units of desktop use for production in encoding. I always experiencing network hanging then after all system will be freeze, so i suggest to shutdown all pc for usually in 5mins then turn on again. In an hour the problem is still exist again and again. I did all possible way to make the production smooth run for my whole shift but still after some hours it occurs again. I dont know what would be the possible reason why the network hangs and stuck up. The network attached storage did not reach the entire capacity, the antivirus server is still updated, the domain and database server are working properly even the PC's use as backup server. There is no internet connection we use in production, so i assure that no virus we encounter in all pc. Is it the cabling? or is it the switches?
we're facing a weird issue lately with a Cisco 2821.An interface stops responding after a few hours.The only way to bring it 'up' again is:
Hardcode: duplex or speed or shutdown -> no shutdown
there are no errors in the "sho interface" and no errors or entries in the log.
FastEthernet0/0/0 is up, line protocol is up Hardware is Fast Ethernet, - Description: Infopoint MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255
I just received a blu ray player for Xmas that has an Ethernet connection for streaming Netflix,YouTube, etc. my problem is my router is upstairs and the blu ray is downstairs. I really don't want to run an Ethernet cable from the blu ray to the router. Can I use another router on the same network and have it close to the blu ray?,I have a netgear router just laying around and the main router is a Verizon fios router.
I have a need to use two routers (Each with different ISP) on my (LAN) office network.I presently DO NOT want to go the (Two ISP's on one router, or Load Balancing router). I Just simply want two routers with two separate ISP's.I will assign the managers workstations to the faster ISP, and other Workstation to the slower connection.And it seems to work, and all resources seem to be available on the LAN, regardless of which (Gateway) Router(1 or 2) I point the workstation to.I assume because all devices are on the same LAN 192.168.0.XXX Is this a proper way to allocate and use two routers on the same LAN?
I have a local DSL line in our remote office. We are connecting a microwave antennae that carries our main office internet to the remote office.I want to be able to connect both paths to a Layer 3 switch and route traffic through the main office with the router connected to the DSL as a fail-over solution.I would really like to stick with HP Procurve's if possible.
I'm trying to connect an Xbox 360 to my University's wireless network using a bridged connection between the wireless adapter and the LAN adapter. I can connect to the internet on the Xbox, but not Xbox LIVE. I get an error message stating that my MTU setting must be 1364 or higher. I obviously cannot access the router settings because they are the schools routers and I do not have administrative privileges. So, Is there some other way to modify MTU settings without that access?
I have a problem figuring out how to setup a home network connection running a VPN. I have been looking through the internet for answers and am still not sure how it all works.
I had a custom device/computer on my network that was hacked from hong kong. It's one of those things where I seriously think the chinese have built a back door into it when they built it or something because everything was secured and monitored.The device runs it own OS or something like that I guess you could say. It can also run it in standalone mode broadcasting it's own signal. Once I figure this out I may not put it online anymore but thats besides the point right now. When it was hacked I'm pretty sure the port it uses to connect was changed from 80 to 591. When it runs in standalone mode I can connect to it but I am unable to actually access it's proprietary graphic network interface. It sends out UDP every few seconds or so and basically I was trying to search for some type of udp broadcast monitor and have tried using network tools such as netstat, port scanning, multicast, etc on all of the big three OS's because sometimes it seemed to finnicky what it wants to connect to. I've tried to let it connect back to my router again which it seems to do, but is then denied access and I think it may even have a trojan or somethng so I don't want it to that but if I have to to access it again I will.In standalone mode I've it usually trys to connect on 192...5 or 192...7 and I've tried to get through 591, 23, 80 etc. multiple times with no luck.
I have the modem feeding a router that I turned dhcp off to use it as a switch, I then have the switch feeding a ubiquiti nanostation and a wireless router (to feed house 1). The other end of the nanostation is in house 2 (1000ft away) where I have it feeding into another wireless router to feed that home hard wired and wireless.Everything works but cannot get both to work at same time.
We have two networks in our lan: 10.0.0.0/24 and 192.168.1.0/24. Actually the networks are separated. The 192.168.1.0/24 network contains some hosts that ip can not be changed. We want redesign the network and communicate with both networks without routers. I thougnt about changing the netmask for 192.168.1.0/24 in 192.168.1.0/22 (1022 hosts) and change IP's in the 10.0.0.0/24 network in 192.168.2.0/22.
I have Dell machine with Win Xp3 loaded, on my local network (and other computers). I set NIC card "Link Speed & Duplex" to autosense & make direct connection to my modem and works ok.When I plug into the network router I get the 'Cable is unplugged' and no Internet connection.I can change the "Link Speed & Duplex" to 10Mbps/Full Duplex and get intermitten connection. Also when I copy a file from Mapped drive I get "Cannot copy xxx - The specified network name is no longer available".
1. the NIC software is recently updated PRO/100 Adapter NDIS 5.1 driver
2. Although Microsoft has suggested Symantec < ver 4 has had an endpoint problem, I have 10.1.6.6000.
3. TCP/IP Properties are on automatic like the other computers.
Have a problem connecting my new IPcamera Elro C903IP so I can access it through the internet. Did the camera setup according to the manual. Local access (wifi network) works fine but access through internet remains impossible. IP of the camera is still 10.0.0.110 but I found out that for access trough the internet the IP would be like 192.168. etc but I can't change it properly.I have cable internet and a wifi router Netgear WNDR3700v2.Documentation that I found about port forwarding etc is not clear enough to me. I tried over and over but can't get it to work .
The question is apparently simple. A network is given, consisting of
- 1 network core switch: HP 5500-EI (Layer3)
- 4 access switches: HP 5120-EI (Layer2)
They are connected in the shape of a star (the core switch in the center)The task is to measure the occupation rate of this network on a per-VLAN basis.
For example : To be able to generate statistics like: During the last week - Monday to Sunday - the netowork occupation with VLAN 10 traffic was 30% and VLAN 60 traffic was 70%.
We just had a TEW-72GR router fail and replaced it with a TEW-GR. Now I am unable to get to my domain (mydomain.net) from outside the network. Inside the network, all appears to be fine. I can enter that address and get to the site with no issues.We use SBS 2008 with windows 7 clients.All clients can get out to the web, we can send and receive emails, but I can not access the domain.
my computer, my network connections icon have a exclamation mark (!) and it say i don't have internet access,but luckily i have internet access but i can't remote my computer,
Vaio would not connect using WEP 40-bit key. Logged into Airport Extreme router with Airport setup utility for Windows from Apple. Updated firmware from 5.1.1 to 5.7. Reset Encryption from WEP to WPA/WPA2 Personal.Connected Vaio on Wifi using WPA2. Removed ethernet cable and connection was good at 54MB/s.Completed Windows Update
I have set up port forwarding for my WD Network HDD, which runs a Media Server (Twonky). Now, I have tested the ports and accessed it through the internet and it works fine, until... I click a link to open a folder and suddenly I get a "No such page" error thing. I have however identified this problem, it seems that when I go off the main page it re-routes to the original network address, not my IP forward address. For Example if my IP was 82.9.12.456 and the port was 800 i would go to "82.9.12.456:800" and it would load but once I navigate i go to "192.168.0.*:800/*****" and does not load the page. If i then copy and past my IP into the URL it works, but this is annoying.
I have a Airtel Internet Broadband connection and I have a lan having around 10 workstations. I have another computer which I want to use as a server through which all the internet traffic will pass. The server has two lan cards(one on motherboard and other one is usb).I have connected broadband modem to lancard1(on motherboard) and have connected the lancard2(usb) to the lan switch.Now how to proceed further, so that internet service is available on all the workstations connected to the lan switch.
I'm studying for a Cisco certification and I'm trying to wrap my head around the routing. I understand how routers work for the most part and how the get updates about networks and how many hops away they are, but I don't get what happens when a router doesn't know the path to a network.
My PC boots fine (via SSD) but as soon as it passes the login screen and brings me to the desktop, the network connection icon has a circle going around it for about 30 seconds. Except the circle isnt moving, or rotating as if it's frozen and when i click on it to go into the network and sharing settings, it hangs. While this happens i can access anything else fine except internet based apps. Once it connects, everything is normal.
I use a Netgear Power line Adapter and have been for years, and have never had a problem with it. I am running Windows 7 Enterprise 64 bit.
I'm running Win7 and have recently had problems at startup. Initially I thought this was a Skype issue as removing it seemed to work, but alas the problem remains with it uninstalled. The PC boots ok and I can open programs quickly enough, but if they need internet access they hang for 5mins or so before the block clears and all is well. I have recently changed ISP provider to BT Broadband (UK) and have a new router which sets itself up and had been working fine.
I'm trying to figure out what's wrong in a LAN having 70 computers.There are three routers in the same subnet with three switches (kinda crappy). DHCPs are off.The problem is that randomly the routers are losing their configurations or the network hangs a lot. There is no problem in the routers (tested many times).The thing is that when i start packet sniffing over the network using wireshark there's a big flood (over 10.000 packets in a sec) coming in a internal ip inside the network ex. 192.168.1.60.Next thing is that when one of the routers shuts down manually, the other one is losing it's config. Today, when i went to check 192.168.1.60 i saw the power plug was not connected, when i re-plugged it the flood was gone. (the computer was turned off).I enabled SPIs / firewalls in all of the three routers and there is no problem yet.
partition the departmental IP network address block to create a staff and a student subnet. Each of these will be identified by its own network address and netmask. It is university policy that you must be economical with the IP addresses. That is, the subnets must be as small as possible, but they must be large enough to accommodate the maximum number of hosts you were given. Also, it is university policy that the respective gateway router to the outside world should always be given the highest possible host IP address in the subnet. The student subnet should have a higher IP network address than the staff subnet. The network must be able to support up to 60 machines on the staff subnet (not counting the router) and up to 120 machines on the student subnet (also not counting the router).
IP address/netmask University network address127.158.128.0 University network mask255.255.192.0 University internet gateway IP address127.158.191.254 Department network mask255.255.254.0 Department router address127.158.129.254
Suppose that the network address of the departmental network is 127.158.128.0 (calculated by AND between Dep network mask and Dep router address)I know that 60 machines would use 6 bits for the staff subnet.the netmask of staff would be 255.255.255.192.how can I figure out the the IP network address of the staff subnet.I have worked out the range for the staff subnetwork.
I have a wi fi sky adapter,and when i plug it in,it says installing driver software. But..then it just hangs there,and eventually leads to-driver was not sucessfully installed(that is when i plug it out,but i waited more than an hour before that)I tried uninstaling and updating the driver for it,but it didnt worked.When i tried to uninstal the driver,again it just hanged.That is untill i unpluged the adapter..I have manually downloaded the latest driver,and when i check in properties it says that device is working properly.
A few days ago the internet on my desktop was working fine. now it has the 'limited or no connectivity' sign on it and i have done a few things to try and fix this. I started by trying a simple repair. it comes up with 'the following action can not be completed: Renewing your IP address' This lead me to try and restart my PC and router with no luck.
I then decided to look a bit further into it and went ito CMD and flushed the DNS. i then did 'ipconfig /release' which generated the response 'IP address for adapter wireless connection 9 has allready been released'. I then did 'ipconfig /renew' to which it generated an interestin response:
'An error occurred while renewing interface wireless network connection 9 : The RPC server is unavailable'
I have made sure my DNS client is on automatic, alont with my RPC (this was uneditable). Its not a router problem as i have had multiple devices connected before and my laptop is working just fine connecting wirelessly.
The Cisco 3600 series (3640) is hanged during booting proccess, the IOS is decompressed, but after some text it hanges and I even cannot go to user exec. ROMmon and bypassing the config setting, but the result is still the same.
Yesterday my router was hangs and my services was stuck. I start the router hard booted and it works fine.This was second time i was facing this kind of scenario. The attached are the "show tech support" of the cisco router 2821.
, I am trying to change the default IP address in vlan 1 on a cisco 861 but everything I do so my connection via SSH hangs and all ssh/telnet attempts are refused.
my commands are as followed:
int vlan 1 ip address 192.168.1.1 255.255.255.0 [hangs]
my current vlan 1 address is 10.10.10.1 255.255.255.0 my vlan1pool on dhcp
is an address range of 192.168.1.0/24
do i need to update something in the authenication to allow connections from 192.168.1.0/24 instead of 10.10.10.0/24
Recently during the power failure my PC shut down abruptly since since then it is not connecting to the network. I have a cable broadband internet, I am using Ethernet wired connection, Intel PRO/100 VE. The Ethernet jack is good as I have confirmed using my laptop. The network connection gets stuck in acquiring network address state. I tried restoring the system to earlier date but it fails to restore. I installed new Intel drives, deleted ethernet adapter from device manager, reinstalled TCP/IP but no luck.. I am using XP SP3 on P4 machine,
The Setup On my home network, I am running Windows Server 2003 as domain controller and file server with a SCSi attached disk array.I have several client PC's. 2 running Windows XP service pack 3, 1 laptop running Windows 7 Service pack 1 and a desktop also running Windows 7 Service Pack 1.These are connected by 2 switches - 1 x Netgear gigabit switch, and a Linksys PSUS4 USB Print server at 100mbps.The PC I use the most is the desktop running Win7 and transfer files to the server.After transferring some large files from the clients to the server, I noticed that the speed was considerably slower than what I was expecting it to be. After investigating, and eliminating elements of the network, I discovered that the Server NIC was running at 10mbps. I tried the usual things like forcing the NIC to run at 100mbps Full Duplex but this had no effect. Strangely, if I reboot the server while the desktop is still switched on the connection goes back to 100mbps. However if I reboot the desktop, or even alter the network settings, it immediatley reverts back to 10mbps.
