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16
votes
6answers
1k views

VHD network file transfer fails consistently at 4GB

This issue has been extremely frustrating for us: when transferring a large VHD (virtual hard disk) file from a Windows 7 machine over the network to a physical Windows Server 2008 machine at our ...
15
votes
2answers
3k views

Reducing NetBIOS noise in a 50-seat, 30-server organisation

We are a development shop where all 50-odd workstation computers run Windows 7 SP1 and most of our 20-30 servers are Server 2008 R2 or Server 2008 (there are a few scragglers still on Server 2003). We ...
8
votes
3answers
40k views

Permanently mount network share without the need for log on? (Windows)

On a Windows 2008 R2 Server (Standard) I need to have a network drive mounted without having a specific user to log on to the machine first. Sort of like an NFS mount via fstab on Unix machines. The ...
7
votes
3answers
377 views

Searching nearly free Security-Solution for School-Computer-Network

I am currently searching a (if possible completely free security-solution for a Computer-Network of a really small private School in the USA. The Infrastructure: Currently the school has one Server ...
6
votes
7answers
363 views

Windows 7 computer: “No internet access”, can browse internet, can remote into it, cannot activate office 2013, cannot join domain

Like the title says, I've got a Windows 7 machine that connects to the network just fine, I can use it to browse the web, including https://officesetup.getmicrosoftkey.com/, I can connect to it via ...
6
votes
4answers
805 views

Setting up a small office network

I'm the de-facto system administrator for a small law office. I'm looking for help to setup the network in a good way. Here's the basic layout/requirements: Windows based. The Server: A headless ...
5
votes
6answers
1k views

Need help diagnosing network performance issues

I am currently working in a developing country as a system analyst for a government department. My area of expertise is software projects, but I've come across a few issues with the network setup in ...
4
votes
1answer
223 views

Can too much network transfer break a Windows Server 2008 machine?

I have a Windows Server 2008 R2 machine which has been having intermitted networking issues. After 29 days, 14-ish hours uptime, I find it's not responding to RDP commands again, yet I can access it ...
4
votes
4answers
159 views

Determining who is running with administrator rights?

I work at a small non-profit organization with about 55 desktop PCs running Windows XP Pro. The domain controller is running Windows Server 2003. I have a two-part question (note that I'm a bit of a ...
4
votes
3answers
530 views

How do you prevent IIS accepting TCP connections when stopped?

I am running IIS 7 on a windows 2008 R2 machine and have found that stopping IIS does not prevent it accepting connections. Stopping IIS won't even kill an active telnet session on port 80. The ...
3
votes
1answer
96 views

Corporate Windows Network Performance

We operate a Windows 2003 Active Directory network. As the new IT manager I've inherited this infrastructure from previous outside contractors that have come in to help maintain our company network. ...
3
votes
1answer
144 views

Unidentifiable DNS entry

I have a DNS lookup for an IP that is coming from somewhere however I cannot locate where. I have checked my entire DNS infrastructure and the device itself but all have the correct name, when I run ...
3
votes
2answers
273 views

once in a while windows / .net application ignores the tcp fin flag

i've run into a network problem which i cannot solve. on a few computers running windows 8.1 and communicating with linux http server tcp connections dangle on the windows side instead of being ...
3
votes
3answers
602 views

Force transmission of TCP/IP data from one NIC to another on same PC

We are preparing a product for EMC testing. The product runs Windows Embedded Standard 2009 (compare it with Windows XP) and has 2 NICs, say NIC1 and NIC2. For the emission test, we need to send data ...
3
votes
8answers
5k views

SQL Server 08 Express error when connecting to localhost - “Timeout expired”. Works with ::1 or 127.0.0.1

EDIT New info: Navigating to localhost:1434 in Chrome gives me an "ERR_EMPTY_RESPONSE", while other ports give me an "Oops! This link appears to be broken". So it seems to binding ok there? So ...
2
votes
2answers
975 views

why is our router crashing?

Our router began crashing 6 weeks ago. We put it down to our DSL provider and then to power outages that seemed to coincide. But the crashes increased in regularity and then last Friday our router ...
2
votes
1answer
84 views

CentOs Vmware networking

I have CentOS server installed inside vmware for testing puprose. For some strange reason When it comes up it won't get IP address properly So, I have to manually use 'ifdown' and 'dhclient' every ...
2
votes
3answers
8k views

How to Make Windows Network Visible to Linux Server Box?

Salvete! I have a machine running CentOS 6.2. In the GUI, if I click on "Network", I get a messagebox saying: "Unable to mount location - Failed to retrieve share list from server" I can ping the ...
2
votes
3answers
1k views

Need to setup an office network, suggest some hardware?

We have 6 windows workstations, spread out over a fairly large area. Need to share a DSL connection (upgrading to 100/100 mbit fiber in a few months) with these machines over a 1gbit network. Also ...
2
votes
4answers
753 views

Mimic the behavior of a machine added to a domain

For some reason, the IT department at our company does not want to add Windows 7 and Windows Vista machine to the domain controller. I hate to always provide my network credentials everytime I access ...
2
votes
2answers
87 views

Running own DNS in intranet, how to reach outside DNS from clients

The Scenario: I am creating a Network for 8 Windows 7 Workstations running in a Student Laboratory. They are supposed to browse the internet, but not to be reached from outside their intranet. To ...
2
votes
2answers
135 views

Offsite network/data center for disaster recovery

I'm designing an off-site server room for disaster recovery purposes. This off-site space will house duplicates of production servers and backup systems (around 10 Windows systems in total). The ...
2
votes
1answer
157 views

How to view files on a computer on a different network

We currently have 2 in-office networks coming in with different routers and IPs for each. What I am trying to do is to configure a one server from each network to connect to each other and be able to ...
2
votes
1answer
2k views

IP address conflict with MAC address 00:00:00:00:00:00

One of our Windows 2003 R2 ISA firewall servers recently had a 1-hour spell of intermittent connectivity to our Internet WAN connection, which was fixed after disabling then re-enabling the network ...
2
votes
1answer
1k views

Windows 2008 R2 Server: Network zones (Public / Private / Domain) Seem to change randomly

So far on 2 occasions we have noticed that the network zones assigned to our server nics has been changed without any interaction on our part. This is out of a few hundred servers we manage. Case 1) ...
2
votes
0answers
212 views

Ping request fails first request on one subnet/NIC. Other traffic very slow

I have a server with 2 NICs each configured on a separate subnet: NIC1 xxx.xx.151.10, mask 255.255.252.0, gateway xxx.xx.148.1 NIC2 xxx.xx.148.10, mask 255.255.255.0, gateway None, but I tried ...
1
vote
4answers
15k views

Windows: Get the interface number of a NIC

I have the following problem: I have a server with a rather dynamic network configuration and need to configure routes on it with the IF parameter: route add ... mask ... ... if ? Is there a ...
1
vote
2answers
909 views

Accidentally set .255 IP address - how can I ssh to the machine?

A server's static IP address got set to x.x.x.255 on a Windows network, but apparently .255 addresses are broadcast addresses to windows. So now I can't connect to the box from my Windows machine. ...
1
vote
2answers
267 views

WinServer 2008R2, Two NIC's, forcing an app to use one of them

Short form question: Is there a way to tell an app to use the secondary NIC as a route even if it has a higher metric? Long form question & explanation: I have a Windows Server 2008R2 with two ...
1
vote
1answer
2k views

Configuring a LAN-WAN routing using Windows 2003 Server

I have an Internal LAN and an WAN Connectivity in my office. The followings are the statistics for the two: LAN IPs: 192.168.50.1 - 192.168.50.5/24 WAN IP: Assigned by the ISP using DHCP I connected ...
1
vote
1answer
84 views

Can I (temporarily) have two machines with the same name on the same network?

We're upgrading the software on two servers and, in the process, also migrating from Windows Server 2008 to Windows Server 2012. All servers are VMWare images. During the migration, we will have a ...
1
vote
2answers
845 views

Is it bad that latency for our internal LAN varies greatly within the 15 - 40 ms range?

I've always thought the "typical" latency for a small office wired Ethernet network would be <5 ms. However, pinging the default gateway yields an average of 14 ms, and any host is around 30 ms. ...
1
vote
2answers
5k views

Windows Filtering Platform blocking packets from workstations on a Domain Controller

Our primary DNS server (as dictated by our DHCP configuration) is running Windows Server 2008 R2 and is also one of our Domain Controllers. In its Security event log we can see that there are ...
1
vote
1answer
570 views

Algorithm to determine MAC address of a network bridge on Windows XP

I have a system with three NICs. The MAC addresses of the NICs are: 1) 2:208:201:168:25:72 2) 0:208:201:168:25:72 3) 0:208:201:168:25:71 I put NICs 1 and 3 into a bridge and Windows reports the ...
1
vote
1answer
107 views

What is the minimal setup for a file server supporting file permissions connected by a handful of client machines

In the past our small firm has been file sharing via a Windows Workgroup with a mix of <10 XP, Vista and Win7 machines. I understand the basic concept of a Workgroup vs Domain and the advantages ...
1
vote
1answer
295 views

Dual network interfaces in Windows Server 2008: same network, different IP address, one wired card and one wireless

When I plug in two wired NICs to the computer, I can get two IP addresses on the same network. Is such a setup possible with one wired ethernet card and one wireless card? If so, how? If not, is ...
1
vote
1answer
856 views

Why am I seeing MailSlot Browse messages on unrouted ports of my Linux box?

I have a Linux box (Debian squeeze) with several NICs. The ones of interest are: eth3 - my main link to the network (dhcp on 10.20.30.0/24) eth0 - the first connection to my test network (static: ...
1
vote
1answer
69 views

Can't access share sometimes and some strange performance issues

I'm getting error 0x80070043 "The network name cannot be found" when accessing \\dc01 (the root), but can access shares via \\dc01\share. When I get that error I also didn't get the network drive on ...
1
vote
1answer
25 views

Windows network failing, not present on linux clients

got a really strange one for you all. I have a network setup using a linux machine as a gateway between various network segments (on seperate nic's) and virtual machines (one of which is a mail ...
1
vote
0answers
465 views

Windows Filtering Platform blocking packets for legitimate traffic

I am running into an issue with traffic from a webapp server to a database server being blocked or filtered. I have allowed inbound and outbound traffic on the needed ip and port with a firewall rule, ...
1
vote
0answers
272 views

Multiple connections using multiple IP addresses to same PC

Background: I have a network management application (like Nagios or OpenNMS but not either one) under testing that requires all managed devices to have individual IP addresses ie. SNMP traps received ...
1
vote
1answer
759 views

How do I ensure that the SQL*Net keepalive is turned on?

I have a public facing application server that accesses an Oracle database that resides behind a firewall. Some of the processes that are executed through the application server can run for over an ...
1
vote
1answer
441 views

Network profile reverts to 'Unidentified' following Windows Update reboot

I have searched high and low for a solution to this problem. I have multiple servers running Windows 2000 Server as well as Windows Server 2003, 2003 R2, and 2008 R2. All of these servers are on the ...
1
vote
0answers
122 views

AP Clients not pingable from outside

Here's a rough scheme of my network: - http://i.stack.imgur.com/zrlJJ.png The network is divided into VLANs. The linksys device is connected to a VLAN20 access port. Clients 4, 3, 2 ping the rest of ...
1
vote
1answer
394 views

Static route works on one computer, not the other

I have been struggling with this for a couple days now, maybe I just need some people with a fresh perspective to figure out what the issue is. Basically I have a bunch of computers that are being ...
1
vote
0answers
112 views

XEN - (magic) networking issue

I have a very strange situation and do not know where to look. I have a XEN installed on Ubuntu 12.04 LTS. My hosting-provider does require, that every new IP my server uses has an own MAC-address. ...
1
vote
1answer
463 views

Mysterious login attempts to windows server

I have a Windows 2008R2 server that is reporting failed login attempts from a number of workstations on our network. Some event log details: Event ID 4625, Status: 0xc000006d, Sub Status: 0xc0000064 ...
1
vote
3answers
183 views

Route VPN Traffic From Linux Box To Windows Box

We have a VPN client running on Windows (because that's the only OS the VPN client will run on) and we have some linux boxes that need to route traffic through that VPN for 10.x.x.x IPs. I'm not sure ...
1
vote
1answer
1k views

Starting RRAS service blocks RDP access to RRAS server on internal interface? (2008 R2)

Has anyone else seen this behavior? I have a VPN server (Win2008 R2) with two network interfaces; RRAS is configured on the 'external' interface, and I am RDP'ed into the 'internal' interface. As ...
1
vote
1answer
364 views

How do I troubleshoot network connectivity problems in windows?

I'd really like to understand how to debug my network connectivity issues, but everything I find on the internet is either for basic users on "How to add a wireless network" or it's people talking ...