Protocols / Routing :: No Packets Received After Reformat?
Sep 13, 2012
I have an Acer Aspire one that connected perfectly to the internet until I did a reformat. Now it only works if through a wired connection or if the internet does not have a password protection. I have tried on 2 different locations with secure wireless and both have the same result. Packets are sent but not received. All other devices in either location are able to connect to internet through wired or wireless connections.IP address is at 192.xxx and DHCP is enabled, TCP/IP is set to obtain automatically and I deleted and downloaded the newest drivers from the Acer website twice. I also did a winsock reset and tried to clear the arp cache? One of the issues I am getting when I run the diagnostic is "warn default gateway address could not be resolved via arp". I'm not sure how to resolve that.
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Mar 21, 2011
I am trying to finish a project and i now have a very un-natural networking question, but i figure that this is the correct place to ask it.
Tools:
Routing Device = Router.
Test App = Creates and Sends Packets through my machine's NIC via NDIS Driver.
WAN = Internet.
VPN = Connected over WAN.
I am trying to route/forward/nat promiscuous packets "TO" the Internet to finish my project. The packets are not addressed to my routing device, but it must take them and forward them on to a VPN connected over the WAN. The packets are actually created by my NDIS test app. This means that the packets will be generated on my local LAN, but will not contain the MAC or IP of the routing device. So they will only enter my routing device while it is running in a promiscuous mode.. how would you try to route promiscuous packets out to the internet?
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Feb 3, 2011
My sent packets are 0 and also received packets. What can I do?
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Jul 20, 2011
I use a wireless adapter to connect to our home network but its stopped receiving packets but is sending them. It has worked fine for ages now it just randomly stopped. The network works with everything else (laptops, Xbox and iPods) but my pc wont receive anything. Also our home connection has no password as we live in the middle of nowhere.
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Oct 29, 2011
I am having a really hard time with a computer that has a wireless connection. Specifically the internet keeps going out. The computer info is that of the affected computer and not the host computer to which the router and modem are connected.
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Sep 9, 2012
How come my packets sent are so high.
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Feb 15, 2012
i can no longer connect to the internet and i have tried everything i could think of. my "wireless network connection status says 0 packets sent and 0 recieved,but im connected to my router with excellent signal. when i got this laptop it had alot of malware, i removed 283entries with malwarebytes in safemode. after i did that i couldnt connect to the internet.
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Dec 21, 2012
I reformat my old PC and installed Win XP SP3. There were no errors during installation and everything works ok. However, I'm not able to connect to the internet with my ethernet cable. The LAN connection shows 'Connected' but properties shows some packets sent but zero received. There are no antivirus program installed, windows firewall is turned off as well.
I've tried the following:
- Tried the same ethernet cable connection to another PC and I was able to get on the internet (so no ISP or router issues I assumed).
- Fix the stack using Winsock - didn't work.
- Device Manager now shows Network Adapter > Atheros L2 Fast Ethernet 10/100 Base-T Controller #2 (no yellow question mark). Although I had to reinstall the driver after XP installation.
- Here's the result of ipconfig/all:
Windows IP Configuration
Host Name . . . . . . . . . . . . : fiu-cf8cd9c6ded
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
[Code].....
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Oct 5, 2011
I have an HP Workstation that I have been working at constantly to get up and running on the network, it had "OpenCloudSecurity" adaware on it I believe and I was able to get that off with a couple of my freeware tools. The problem I am having is simply it will not connect to the network and only shows. 0Sent 0 Recieved and doesn't pull and IP configuration. I skimmed around and found that sometimes adaware/spyware can play with the TCPIP Stack and that your best bet is to reset the TCPIP stack and WINSOCK ; I did TCPIP Reset and Winsock multiple times with multiple reboots . I know it isn't the ethernet card because I popped in a live Ubuntu CD and it connected just fine on the wired ethernet.
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Jun 6, 2012
I have a Linksys wireless router model WRT54G (not sure the exact model, it's not in front of me right now). It has worked flawlessly for the past several years, but for some reason has recently stopped working. I confirmed it's not a problem with the DSL Modem, as I can hard wire connect to my laptop and the internet works fine. It's clear something is wrong with the wireless router. I've tried unplugging, hitting the reset button on the back, and nothing has worked. My computer is able to recognize/locate the router and connect, it's just that I can't connect to the internet. One thing I've noticed under the wireless connection is that the computer is able to "send" packets, but not "receive." My experience is that this is always the case when I experience connection problems, but I have no idea what that means. I was going to call the Help Line, but I see it costs $30 which is likely more than my router is worth and probably 1/2 to 1/3 the cost of a new one so I am trying to troubleshoot myself.
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Apr 15, 2013
As a matter of fact i am new to this field .I have cisco 1700 series router which has ea0 and FE 0 port
E0 connected to LAN and FA0 for ISP ,both are configured wit publisc ip.and ststic route to ISP. (E0 connected to switch and fa0 connected to ISP MUX)
When i issued sho arp command i have received more than 30 entries of MAC and IP address . I am wondering how i received this much mac in arp table.
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Jan 11, 2012
I obtain this message on Nexus 7000:2011 Dec 22 03:37:53 NNN %STP-2-RECV_BAD_TLV: Received SSTP BPDU with bad TLV on port-channel1 VLAN0020 and following with err-disabled port ?[URL]
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Mar 27, 2012
We have Cisco IP phones behind a 2600 series router:Most of the time when the PBX receives a packet from the phone, the source IP of the packet is set to the public IP of the router (1.2.3.4) as expected. However, once in a while, we get packets (at the PBX) with the source IP set to the private IP of the phone (10.0.0.12).The router is configured by our provider, and they can't give us any explanation for this behaviour. Is it safe to assume that PAT is not configured properly at the router?
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Mar 25, 2013
I have a Catalyst switch that is redistributing some static routes into OSPF. These are received on a Nexus 7K and appear in the database however the 7K does not add them to its routing table, one of the routes is ignored and not added. I haven't got a clue why this is happening.
The routes on the Catalyst are as follows with ID of 172.30.255.22:
ip route 172.24.59.0 255.255.255.0 10.56.7.46
ip route 192.168.168.0 255.255.255.0 10.56.7.62
on the 7K the database shows:
172.24.59.0 172.30.255.22 1374 0x80001a44 0x1a48 0
192.168.168.0 172.30.255.22 1374 0x80001a45 0x6c5b 0
The routing table shows:
sh ip ro 172.24.59.0/24IP Route Table for VRF "default"'*' denotes best ucast next-hop'**' denotes best mcast next-hop'[x/y]' denotes [preference/metric]
172.24.59.0/24, ubest/mbest: 1/0 *via 172.30.253.10, Po7, [110/20], 20w4d, ospf-NCC, type-2
sh ip ro 192.168.168.0/24IP Route Table for VRF "default"'*' denotes best ucast next-hop'**' denotes best mcast next-hop'[x/y]' denotes [preference/metric] Route not found
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Jan 15, 2011
I have a really weird issue with my cisco catalyst 3560G.
-device: cisco catalyst 3560g
-ios: 12.2-53(SE) IP SERVICES
scenario: configured IPv6 iBGP link between this switch and a router. the router is announcing 1 (test) route. the switch sees the route properly, but doesn't add it to routing table (the route never gets to be "best path", although it should be).
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Nov 16, 2011
Cisco LMS 4.0: Is able to forward SNMP traps (ver. 2c) received from device registered with it to a configurable IP address? • Traps contain the original Device Agent IP to identify the source (Not the IP of LMS)?• Is possible to configure one logical IP address or Domain Name for redundant LMS:Cisco Security Manager 4.1:Is able to forward SNMP traps (ver. 2c) received from device registered with it to a configurable IP address?• Traps contain the original Device Agent IP to identify the source (Not the IP of Security Manager)? • Is possible to configure one logical IP address or Domain Name for redundant Security Manager?
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Sep 3, 2012
Most of the 4500 Switches in our network are giving the similar error for so many ports
%C4K_L2MAN-6-INVALIDSOURCEADDRESSPACKET: (Suppressed 1 times)Packet received with invalid source MAC address (00:00:00:00:00:00) on p t Gi2/6 in vlan 100
Its impossible to do a wireshark packet tracing for all the ports.
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Feb 14, 2012
Issue I am having with a Cisco 4507? Below is the error i am receiving.
Feb 14 10:06:09 EST: %C4K_L2MAN-6-INVALIDSOURCEADDRESSPACKET: (Suppressed 508 times)Packet received with invalid source MAC address (00:00:00:00:00:00) on port Po10 in vlan 112
Feb 14 18:44:06 EST: %C4K_L2MAN-6-INVALIDSOURCEADDRESSPACKET: (Suppressed 119 times)Packet received with invalid source MAC address (00:00:00:00:00:00) on port Po10 in vlan 112
Feb 15 00:51:06 EST: %C4K_L2MAN-6-INVALIDSOURCEADDRESSPACKET: (Suppressed 366 times)Packet received with invalid source MAC address (00:00:00:00:00:00) on port Po10 in vlan 112
[Code]...
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Mar 16, 2011
just reformatted my bros laptop the other day and reinstalled windows xp home, he bought the computer off of a friends so he doesnt have any of the driver discs or anything else that came with it, after reinstalling windows, I couldn't connect to the internet with it so i went to the hp site to get the network drivers for his laptop and installed them via a disc i put them on from a computer that does have internet access working, so now its saying its wireless is connected but when i try to access internet explorer it asks me if i want to work offline saying there is no connection. In network connections there is no local area network, and in device manager for network theres only 2 under it 1394 net adapter and Broadcom 802.11b/g WLAN, there are other devices with ? and ! attached to them, im not sure if they have to do with the problem or not just trying to get the internet working on his laptop so he can download the rest of his drivers/updates then but the other devices with ! or ? are: base system device x3, coprocessor, other PCI bridge device, PCI bridge device x2, SM bus controller, Universal Serial Bus (USB) Controller, Unknown devicex2, USB device, Video Controller (VGA Compatible)[CODE]
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Mar 22, 2011
So today I went to my grandparents house, so I could reformat their computer that had crashed due to a virus. Their computer is a Dell Dimension 2400. I was able to download the video and audio drivers from the disk Dell gave them onto their computer, but cannot connect to the internet. I went into the network connections, nothing was there. Then i went into devices and saw the yellow exclamation mark by the ethernet device.
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Sep 2, 2011
I reformatted my father's laptop, upgrading the OS from Vista to Windows 7 but now the wireless network adapter isn't working. Basically, the laptop doesn't know that it has wireless. In device manager there is an exclamation mark against the "Atheros AR5007UG Wireless Network Adapter" entry. I've tried uninstalling the driver and reinstalling it, restarting the computer, updating the driver etc but it always fails to install the driver correctly. I don't know for sure the model of the network adapter, (windows tells me it's atheros but I'm not convinced seeing as the driver always fails to install) so I can't go to the manufacturer's website to download the latest drivers. I opened up the laptop but couldn't see any brand names on the network card. I don't have the cd's with the drivers on them.
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Mar 27, 2012
I recently had to reformat, and I tried to re-install my E1000 Wireless N router from the CD. Even after entering my network name and password, it said it was unable to connect to my network. My internet works fine - I just can't make my computer in control of it again. I have several devices connected wirelessly, including an Ipad, and they all get internet fine. how to get the program installed so I can change settings again?
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Jun 4, 2009
I had to reformat a Dell Latitude D830 with XP Pro SP2 due to a trojan. After XP was reinstalled, I inserted the cds which contain the drivers and such for my system. I installed the drivers and utilities, but for some reason when I plug my ethernet cable into the laptop, it says there is "Little or No Connectivity". I plugged the same ethernet cord into the desktop I am currently using, and it works just fine. The connection comes straight from the wall to the computer with no router or modem involved.
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Aug 28, 2012
I have a 2600 router i intend to use as an access server. I doesn't have an IOS so i downloaded via tftp. I should see the file at Dir flash:, but all i get are these error
rommon 1 > dir flash:
File size Check sum File name lseek out of bounds getdirent: lseek error rommon 2 >
And if i tried to download again the file, its failing because it seems that there aren't any space available in my flash. Here is the mem info.
rommon 2 > meminfo
Main memory size: 64 MB.
Available main memory starts at 0x10000, size 65472KB
IO (packet) memory size: 0 percent of main memory.
[code]...
Here's what i think. The first file download could be corrupted and it eats up the space on my flash. My question is how can I reformat the flash so that I can re download the IOS? And if in case that fails also, any other way i can recover this machine.
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Feb 23, 2013
I have the same machine, same problems. After a reformat, WindowsXP would not reload drivers (from the OEM software provided by DELL). I reinstalled (in order) with a fair amount of difficulty got them all to load EXCEPT for the network adapter. I've download the adapter software AND driver; still no luck. Still working on this bugaboo. Incidentally, what saved me with the other drivers (yellow question marks on Base System Device controller, ethernet, PCI, SM Bus, etc) is that I had run a Belarc Advisor utility printout prior to the reformat. So now I at least had something to compare the before and after reformat with.
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May 30, 2012
I have Inspiron 1525 with Marvell Yukon 88E8040 PCI-E Fast Ethernet Controller. After reformat, the network will not detect wireless modem after I think I have downloaded all pertinent drivers. In Device Manager, under Other Devices, The Network Controller shows an exclamation mark that under Device Status says, "The drivers for this device are not installed. (Code 28) To reinstall the drivers for this device, click Reinstall Driver." I have turned on the button on the left of the laptop and still missing something.Prior to the reformat everything was working well. I had the Blue Screen of death andthat's the reason for the reformat.
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Sep 23, 2012
I have a Dell XPS 8300 desktop. The desktop recently got a virus which caused me to completely reformat the computer. I thought the PC came with a drivers CD but either it did not or I cannot find one. Now that I installed a fresh copy of Windows 7 it will not connect to the internet. I have tried downloading all network drivers, bios drivers and making sure BIOS is enabled but still I am unable to connect to the internet.
What can I do to fix this problem or is there any place that I can purchase the actual drivers CD for my PC so that this does not happen again? I have gone to the drivers and downloads page, put my tag number in and literally downloaded every single driver listed and still it is giving me the "no connection detected" error.
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Aug 20, 2011
why the WAN protocols like Frame-relay, HDLC and PPP are called Layer2 protocols?What is the address scheme they use?
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Apr 5, 2011
I have got a PC at work (Windows XP Pro SP3) that is on two networks with the IPs 10.20.30.167, subnet 255.255.255.0 (internet enabled) and 10.0.0.20, subnet 255.255.255.0 (no internet). On the 10.0.0.X network there is a gateway with the IP 10.0.0.200 allowing access to another network; 192.168.60.X, subnet 255.255.255.0 (no internet). I have added the route on my work PC to access the 192.168.60.X network via this gateway and I can access all PCs on all three networks from this PC.Now, I am using LogMeIn Hamachi so that I can access the networks at work from home. The PC at work is the 'gateway' PC on the Hamachi network. When installing Hamachi it created a new network connection and bridged this connection with my 10.20.30.167 network adapter to allow access to the 10.20.30.X network from an external PC when connected using the Hamachi VPN connection. I have manually configured my Hamachi connection on my PC at home to the IP 10.20.30.169, subnet 255.255.255.0, with the default gateway set to 10.20.30.167. I can ping all computers on the 10.20.30.X network from my PC at home.
I then added a route on my PC at home for 10.0.0.X to go via 10.20.30.167 (the 'gateway' on the Hamachi network). I also enabled IP forwarding on the 'gateway' PC (my PC at work). I can not ping any PC on the 10.0.0.X network from my PC at home apart from 10.0.0.20 (the other NIC in the Hamachi gateway PC) and 10.0.0.30 (another PC on the 10.20.30.X network that is also on the 10.0.0.X network).Now, with IP forwarding enabled on the Hamachi gateway PC I would assume after adding the route on my PC at home for 10.0.0.X traffic to go via 10.20.30.167 that I would be able to ping all PCs on the 10.0.0.X network...I also tried adding a route on my home PC to send all traffic for the 192.168.60.X network via 10.20.30.167 which has a route via 10.0.0.200 to the 192.168.60.X network, but this also did not work.I then tried adding the 10.0.0.20 network adapter into the network bridge that the Hamachi connection made, also keeping both IPs (10.20.30.167 and 10.0.0.20) on this network bridge by adding them into the 'IP Settings' in the 'Advanced TCI/IP Settings'. I also added the 10.0.0.200 gateway for good measure. I still cannot ping any PC on the 10.0.0.X or 192.168.60.X networks from my PC at home.
I have also added the route to the 10.20.30.X network on a PC on the 10.0.0.X network to go via 10.0.0.20 and tried pinging a PC on the 10.20.30.X network but this also has not worked. Also setting the default gateway on a PC on the 10.0.0.X network to 10.0.0.20 does not allow this...Surely bridging the networks 10.20.30.167 and 10.0.0.20 on my work PC would allow another PC on the 10.0.0.X network to access the 10.20.30.X network after adding the route or setting 10.0.0.20 as the default gateway?
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Dec 26, 2012
We have a customer who uses about 20 x c2960's switches for access layer and 2 x c3560e for distribution layer. C2960's uses C2960-LANLITEK9-M , Version 12.2(58)SE1. Everything was working fine. Now we got information, that sometimes there are problems with connectivity. Customer tries to reach internet.
SW11#sh int fa0/18
FastEthernet0/18 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is e8ba.806a.4412 (bia e8ba.806a.4412)
[Code].....
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Feb 21, 2012
I am seeing packets being ignored on GigabitEthernet0/0, but can't find any reason what the reason can be for that. So far calculated that about 3% of the traffic is being ignored. If it was caused by shortage of input buffers, I would expect to see increasing counters somewhere at no_buffer, but that is not the case. The average txload and rxload on the router is low all times.
#sh int g0/0GigabitEthernet0/0 is up, line protocol is up Hardware is i82543 (Livengood), address is 0012.7f8a.8008 (bia 0012.7f8a.8008) Description: ;Link to NORISMP998 G5/2 Internet address is 151.175.19.102/30 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 2/255, rxload 2/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 1000Mb/s, link type is autonegotiation, media type is SX output flow-control is XON, input flow-control is XON ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters 8w2d Input queue: 0/75/522186/1117 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 11667000 bits/sec, 2319 packets/sec 5 minute output rate 9377000
[code]....
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Mar 1, 2013
We have a 3750x 24s acting as a root switch for about 10 other 3750x's. Everything else seems fine, but the device stopped forwarding packets to the applied static route. [code]
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Jul 23, 2012
router 7200 (12.2(33)SRE1)
two interfaces with traffic going through, placed in a Data-VRF
Another physical interface and loopback interface in the global routing-table.
ip flow ingress on all physical interfaces configured
It was running for at least a year: I was getting netflow packets on my analyzer from the box. Since a couple of weeks I get no netflow-packets anymore.debug ip flow export tells me "IPFLOW: Sending export pak to ... port 2055"
But the packet is not leaving the box. By setting up an ip sla monitor udp-echo I simulated some traffic (udp/2055) which is leaving the box.
[code]...
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