A utility available on all operating systems that helps test network connectivity.

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1answer
110 views

Unable to ping server

I have a Linux server that seems to have lost the ability to respond to a ping.. I recently installed Nagios on another system and need to have this Ubuntu server answer up to a ping.. I'm using ...
0
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1answer
77 views

What is what in the topmost of the OSI model

I am familiar with the OSI model and all but there is something that's been on my mind: Do tools like nslookup and ping reside in the application layer only? They use supporting layers below but ...
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2answers
931 views

Ping and nslookup work, browsing doesn't

I have a problem with my desktop computer. I can execute ping and nslookup commands but browsing doesn't work well. It takes a very long time to open webpages. I have tried different browsers, ...
4
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2answers
971 views

Why does my ping command (Windows) results alternate between “timeout” and “network is not reachable”?

My Windows is in Spanish, so I will have to paste console outputs in that language (I think that translating without knowing the exact terms used in english versions could give worse results than ...
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0answers
40 views

Ping IP/Hostname works laptop A to B, Can Ping Hostname but IP timed out laptop B to A

I have 2 laptops on home wireless network (Linksys Router). From Laptop A, I can ping Laptop B by hostname as well as by IP just fine. From Laptop B, I can ping Laptop A by hostname but when I ping ...
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0answers
85 views

Vista PC will not respond to pings on home network

I need some help with file & printer sharing with Windows Vista. Home Network called is named WORKGROUP Router: Belkin N150 Wireless Router 3 PCs: Win Vista Home Premium Desktop 64bit - ...
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2answers
147 views

ping frequency for LAN

Suppose I have a LAN with 20 devices attached (eg switches, router, access points, XBOX, DirecTV, IP Cameras, etc). I want to ping each devices periodically to see if all devices are alive. My ping ...
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2answers
420 views

I can't connect to school server from within school network

At our school we have a server where we can access documents and similar. Accessing it is no problem if I connect to the network via VPN connection. But if I connect to the network via the WLAN of the ...
2
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2answers
3k views

Doubt In default time to live (TTL) 255?

I know that,The Default Time to live value is 255, each time a ipv4 packet crosses a router that value is decremented by 1. But,When I ping my adsl router it shows TTL as 64 Pinging 192.168.0.1 ...
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0answers
140 views

Pinging local machine with external IP

On a Gentoo server, I am trying to wget or curl a page from its url: wget http://example.com/test.html (I can get result for this url from my browser) All I receive is Timeout. With cUrl I get ...
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1answer
39 views

No DNS But Internet Access

Today while using a Wifi Analyzer I noted that I had 100% loss of ping packets to the DNS Server. To try to isolate the problem I hard wired my computer to my cable modem bypassing my wireless ...
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1answer
818 views

Own hostname not resolved, but DNS works

Following problem on my Mac Mini: hostname brings: macmini ping macmini brings: cannot resolve macmini: Unknown host Same on other computers in the network: ping with this name does not work, ping ...
0
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1answer
131 views

Why do the response time differ dramatically between two different ways of taking arguments to httping command?

I've installed httping command on my OS X Mavericks through homebrew, and tried to use it to connect to apple's web site in two different ways, but got dramatically different performances. When I ...
0
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1answer
374 views

Ubuntu in virtual machine behind proxy can't ping

I installed Ubuntu 12.04.desktop on VMware. I'm connecting to the Internet through a proxy. I can browse with Firefox, but when I try to ping any domain, I get this message: 12 packets transmitted, ...
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0answers
252 views

Cmd error Ping command cannot find the host

When I type in the following on my command prompt: ping www.google.com It displays as Ping command cannot find the host, but my internet is fully functional and I can access the page. Please help. ...
2
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3answers
719 views

High jitter while pinging access point

I need some help diagnosing temporary pauses and Internet Jitter. I'm not sure if it is a network problem, an OS issue, or something else. My internet speed is fast, but its fluctuating, sometimes ...
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votes
2answers
1k views

Ping increase internet speed [closed]

Can I use ping to increase internet speed? ping [IPv4 of wifi] -n 100000 Is this increasing my internet speed?
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2answers
114 views

Tracert behaviour explanation

Sorry if my question is trivial, I tried to tracert to an ip address, and after first 12 hops I got request timed out for the rest, until reach a maximum of 30 hops. I assume that the machine is ...
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0answers
151 views

Why I get a VMnet Network Adpater's IP even if my Wireless Network Adapter has priority?

On Windows 7, when I try to ping my computer name I get an IPv6 address, so I ping with -4 option, then I get an IP related to my VMnet (VMnet1) Network Adapter which results 192.168.220.1, and not ...
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0answers
526 views

Can't load certain websites, but everything else works

As of this morning, I suddenly can't reach certain sites at all, but all other sites load fine. The sites that don't load are major sites like CNN.com, ATT.com, etc., so they're certainly not ...
1
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1answer
166 views

What responds to a ping? The modem, or the router?

Just a very simple question I'm sure you all know. When I ping my public IP address what is responding to the ping? Is my modem responding to the ping and never reaching the router or is the modem ...
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0answers
148 views

Windows 7 can ping Switch, but Windows XP can't

Maybe this question has already been asked, but I can't seem to find it by using the search. I got a little network where I've got my default gateway on 10.0.0.1 with a switch built in. Then there is ...
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1answer
133 views

Local addresses unreachable, remote addresses work

I experienced strange behaviour on my employee's Windows7-Box. I was working via Putty in a local headless Virtualbox (running LXLE and connected via Virtualbox's host-only network adapter) and ...
6
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4answers
30k views

ping can't resolve hostname, but nslookup can

ping tells me that it can't resolve some hostname ("ping: unknown host domain.company.local") in a URL but when I use host or nslookup on the same computer on the command line, the resolutions works ...
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2answers
1k views

I can ping a Windows XP PC with the firewall off but I can't when the firewall is on. Why?

For the ping command, I have read (e.g. try this link), there's no port required. Yet I have a PC on my network which I cannot ping. Strangely, I can connect to using Remote Desktop. However, I am ...
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3answers
550 views

Why is my neighbor ping 20ms less in online games? [closed]

My friend/neighbor has the same ISP than me (cable provider). In fact, he has a lower speed package. But when we game online he always have 10-20ms less ping than me. I tried connecting my PC ...
1
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1answer
4k views

what does it mean if nslookup and ping fail to resolve a host name but tracert does not?

This problem concerns an internal DNS server that for some reason sometimes fails to resolve the host names of some machines on the network. When it fails to resolve a host name, and this can happen ...
0
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1answer
176 views

Ping packet loss 100

I'm using a laptop in a dormitory and I was trying to go to a website, but it only shows texts and white background. When I check another website about the same thing happens, no pics just texts and ...
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0answers
52 views

2 PC's One Switch

I have a router with a switch (a) and a pc (1) then a run of ethernet from switch (a) to another switch (b) with 2 pc's (2 & 3) I can ping from PC 2 to PC 1 But can't ping from PC 3 to PC 1. ...
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0answers
330 views

Connection fails after one packet, server is unreachable by some clients while reachable by others

I am clueless about this issue. I have a machnine with Windows 2003 Server R2. From time to time the following issue arises: The server is accessible from certain clients From other clients (on the ...
3
votes
2answers
790 views

Doing uploads from my windows 7 machine causes high ping time

Without a program doing uploads, my 64-bit Windows 7 laptop does great - 40 ms ping time, 5 MB download rate. If anything starts uploading (Dropbox, for instance), ping times suddenly increase over ...
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0answers
14k views

How to fix my internet connection/bad ping

First of all thanks for any help! To start with, my internet speeds are bad (3 down and 3/4 up) I can normally play Minecraft with very little lag (me and my 2 bros that play). Recently my Internet ...
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2answers
6k views

Repeatedly high ping - caused by WiFi or provider?

I have an ISP with a 10gbit broadband connection. I can usually download with about 1.8mbytes/sec, so that's not a problem. However, I sometimes have a very high ping in online games (> 200ms). It ...
2
votes
1answer
7k views

Ping IP returned “destination net unreachable”, even with different network

I couldn't log in to facebook, so I ping the domain and got this: ping www.facebook.com Pinging www.facebook.com [69.171.228.14] with 32 bytes of data: Request timed out. Reply from ...
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0answers
34 views

Why do I experience latency to certain IP's

This one has me stumped. I read a lot and ask very few questions. I usually have 2 or 3 SSH sessions at any given time. Monitoring applications, working on server configs that type of daily grind. ...
3
votes
2answers
5k views

How to increase ping time/network connection latency on Windows?

I need to permanently increase network latency in approximately 100ms, without losing packets. Reason: On a certain server and internet game my ping is too much lower than the other people playing ...
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votes
1answer
15k views

NSLOOKUP Default Server: UnKnown How to fix it [closed]

I execute NSLOOKUP and see C:>NSLOOKUP Default Server: UnKnown Address: 192.168.1.1 I am guessing that it should be something like C:> nslookup Default Server: ...
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0answers
25 views

Wierd connectivity problems

I'm having some quite confusing problems with the network. First of all, all of the computers can access the internet and mapped drives and so on, the server can ping any LAN computers IP, the ...
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0answers
96 views

Mavericks: ping resolves differently from dig

I have BIND9 running on my MBP with a zone for the TLD dev. I then have /etc/resolver/dev setup with the line nameserver 127.0.0.1 so that resolution for that TLD only is performed using my local BIND ...
2
votes
1answer
206 views

Windows 8 requiring trailing dot in DNS name in order to resolve

I'm in the process of setting up a home network but I'm having issues on my Windows 8 machine. If I ping another host on my network, the name won't resolve. If I use nslookup, it will resolve no ...
0
votes
2answers
233 views

Slow ping on one machine

We have 13 computers connected to Windows 2008 Server R2 Domain. There is Windows 7 64-bit Professional on all of them. The computers have same configurations and are quite fast (Intel Core i3, fast ...
0
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2answers
130 views

Can access wamp through browser, but cannot access computer

Ok. First off, I am not able to access the physical computer until tomorrow, when I get back to work. With that being said, I wont mark any solution, until tomorrow (at least). With that out of the ...
2
votes
1answer
2k views

Can ping/ssh through LAN but not with Wi-Fi

I have bought a new D-link Wi-Fi modem recently, and I have connected one Linux system through LAN and another system through Wi-Fi. I can't ping the host which is connected to the LAN from the Wi-Fi ...
0
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2answers
111 views

troubleshoot ping failure due to denied MAC address

Does anyone know of a tool (Windows or Linux) that will identify packets that get dropped on a network due to MAC filtering? In question 682774 (ping-printer-times-out-when-wireless-ok-when-wired) I ...
0
votes
1answer
437 views

ping printer times out when wireless, ok when wired

I have been managing our home network now for many years, and this is the weirdest problem I have ever seen: I have a router (Dlink DIR-655) to which a printer is connected directly via cat5e. The ...
2
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0answers
272 views

'ping git-scm.com' returns 'ping: unknown host git-scm.com'

Since a couple of days ago I'm not able to access git-scm.com and when trying to ping to the domain: ping git-scm.com I get a: ping: unknown host git-scm.com How can I check for errors in my ...
2
votes
1answer
183 views

Can a software cause a huge ping response

I need someone to explain something to me since I'm really not good with networking. How can it be that when I open minecraft and I mouse over the ping I see 1300+ms and I lag extremely. But when I ...
0
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3answers
855 views

Ping returns statistics with duplicates

If I go into terminal and type ping -c2 -i30 (MY IP ADDRESS) I get a list of 80 entries with my ping statistics stating I've got +78 duplicates. Does that mean there are two devices connected to ...
1
vote
1answer
106 views

How much will frequent pinging affect smartphones battery life [closed]

I've got a small home network with a DiskStation NAS and a Raspberry Pi server, both of which can do various chores such as controlling power plugs among other things. I want these two machines to be ...
0
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0answers
19 views

Handle ping outputs

I using 'shell_exec' function in php to ping an address and I wanted to know what are the possible results so I could handle them. What I did is to try to get with regular expression the loss ...