Solved

I am having wierd network problems

Posted on 2009-04-06
9
168 Views
Last Modified: 2013-11-25
I started hearing of printing problems with network printers (hp laser jets) pages would not print or they would print after a couple of minutes. In conjunction with this users started geting kicked out of a database program we use. Also sporatic problems with email and slow browsing. I have symantec corporate 11 with definitions as of sunday on all the machines.
Some things I have found.
Maped network drives are not available unless browsed to.
Printers will print if I set up an extended ping and then try to print.
I am getting active directory/DNS errors but I print to my hps using tcp/ip with a ip address so I don't understand why they dont print.
Sounds like its viral or spyware related but my pc's show no infections. Any ideas. I have wireshark but I realy don't know what I am looking at.
0
Comment
Question by:techtlcb
  • 4
  • 4
9 Comments
 

Author Comment

by:techtlcb
ID: 24087981
I am getting dns errors from my server. Could this affect my local network??
0
 
LVL 38

Expert Comment

by:ChiefIT
ID: 24210375
I am getting dns errors from my server. Could this affect my local network??

So could netbios problems.

Let's fix the DNS errors first. Can you give me the error?
0
 

Author Comment

by:techtlcb
ID: 24218197
ChiefIT DNS issues resolved.
Still have all symptoms above.

Mike
0
 
LVL 38

Expert Comment

by:ChiefIT
ID: 24234118
Still sounds to me like A DNS issue. Check your preferred DNS list on clients and servers. They should all be set to your internal DNS server, not an outside server.

To do this, run an IPconfig /all of your client's and servers and see what it has for their preferred DNS server.

Also, go to your enterprise router and make sure it isn't providing DHCP to your clients. If it is, it will by default provide DNS to your clients. The issue with this is, routers will not hold the SRV records of your Domain server. So, you will experience good internet, but problems within the domain that you are experiencing TO THE LETTER.

As far as netbios, make sure all of your network adapters are set to NETBIOS over TCP/IP, instead of netbios over DHCP. Netbios over DHCP is the default configuration of the nic these days. The only problem is, Sometimes the DHCP server is not the domain master browser.

0
IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

 
LVL 38

Expert Comment

by:ChiefIT
ID: 24234122
Well, let me rephrase that.

If you can browse your network in my network places, this will probably not be a netbios issue.

Stick with me on DNS troubleshooting. I don't think your DNS woes are over.
0
 

Author Comment

by:techtlcb
ID: 24245545
I will check this stuff out in the morning.
Thanks for all the suggestions!
0
 
LVL 7

Expert Comment

by:blue-screen
ID: 24265785
Sounds like some device may have a duplicate address to your print server or database.  Check your ARP tables to see if the MAC address of those servers is what you expect.
0
 
LVL 38

Accepted Solution

by:
ChiefIT earned 500 total points
ID: 24635035
Any luck boss?
0
 

Author Closing Comment

by:techtlcb
ID: 31567314
You pointed me in the right direction.
I had to work off site for a few weeks but am back and have resolved the issues.
0

Featured Post

IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

Join & Write a Comment

Suggested Solutions

What’s a web proxy server? A proxy server is a server that goes between clients and web servers, used in corporate to enforce corporate browsing policy and ensure security. Proxy servers are commonly used in three modes. A)    Forward proxy …
Configuring network clients can be a chore, especially if there are a large number of them or a lot of itinerant users.  DHCP dynamically manages this process, much to the relief of users and administrators alike!
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…

759 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now