Help!Electronic noises,server issues,console messages,ethernet -PowerPC G4

Question

I've been searching the internet as well as the Console and Activity Monitor for answers to this scenario, and it looks as though there is some kind of relationship between recent strange sounds I have been hearing over my speakers and server issues (my IP? Apple servers? spyware? )
Immediately below, are some of the log messages I have copied (for terminology examples).
Below them will be the description of the sounds I've been hearing, and potentially related details.
The first of the log examples documents something that happened when no one was home to use the computer. The second describes some kind of process that might be suspicious. The third describes what is happening a lot lately, and it seems to correspond with the sounds I referred to as well as with simultaneous increases in network activity shown on the Activity Monitor
Apr 8 14:01:13 Macintosh kernel[0]: System Sleep
Apr 8 14:01:13 Macintosh mDNSResponder: Couldn't read user-specified Computer Name; using default “Macintosh-000000000000” instead
Apr 8 14:01:13 Macintosh kernel[0]: System Wake
Apr 8 14:01:13 Macintosh kernel[0]: Wake event 0020
Apr 8 14:01:14 Macintosh configd[65]: posting notification com.apple.system.config.network_change
Apr 8 14:01:16 Macintosh kernel[0]: USB caused wake event (EHCI)
Apr 8 14:01:16 Macintosh mDNSResponder: Couldn't read user-specified Computer Name; using default “Macintosh-00112474A206” instead
Apr 8 14:01:17 Macintosh kernel[0]: UniNEnet::monitorLinkStatus - Link is up at 100 Mbps - Full Duplex
Mac OS X Version 10.4.11 (Build 8S165)
2009-04-09 23:06:12 -0400
2009-04-09 23:06:18.315 HPEventHandler[216]: DebugAssert: Third Party Client: (NULL != m_lock && 0 == errno) Can't create semaphore lock[/Volumes/Development(Build System)/HP/Mac-Fontana/mac-software/components/HPEventHandler/Sources/Core/HPTM NotificationManager.cpp:62]
2009-04-09 23:06:25.995 SystemUIServer[207] lang is:en
Will Power On (Wake) Notification occurred.
2009-04-09 11:21:49 EDT - Network transition occurred.
2009-04-09 11:21:49 EDT - Network transition occurred.
2009-04-09 11:21:49 EDT - Network transition occurred.
2009-04-09 11:21:55 EDT - Network transition occurred.
2009-04-09 11:21:55 EDT - Network transition occurred.
2009-04-09 11:21:55 EDT - Network transition occurred.
2009-04-09 12:01:12 EDT - Sleep Notification occurred.
I have recently been getting both a tapping and a buzzing sound through my speakers. Both kinds of sounds come together, intermittently and repeatedly, and each time, the volume rises, peaks, and fades away again (or stays faint until it starts to rise again). Today, once, there was a squeal-ish sound (not like a fax) as well, paralleling the other sound. These episodes vary in duration.
The Activity Monitor has shown increases in the Network window when these sounds have occurred, but I don't remember whether the greater increases were incoming or outgoing--I think, incoming.
When this first started happening, I was also seeing a lot of "Network Transition Occurred" messages in the log. Now I am seeing mostly "Macintosh mDNSResponder: Couldn't read user-specified Computer Name; using default "Macintosh-000000000000” (or “Macintosh-00112474A206)” instead" messages.
It all started happening after I uninstalled a trial version of ProtectMac (at the end of March), as well as set up a separate log-in for my grandson to use (major changes for the first time in years, which also caused me to lose a lot of things like bookmarks, saved music in iTunes, home movies in camera related software, pictures in iPhoto, etc...). Somewhere along the line I also lost iSync and just left it off.
Are these noises servers trying to communicate with my computer, which I somehow happen to be hearing as transmitted static/feedback/or signaling?
I have a 1.42 GHz PowerPC G4. I use a DSL, ethernet.
Thank you.

Answer 1

Hello,
Try these DNS numbers.
Try putting these numbers in Network/Advanced/DNS.
Add these numbers to DNS Servers
208.67.222.222
208.67.220.220
Click OK. These are safer/faster than most ISP's NDS numbers, and have been patched against DNS poisoning.
Go here to test DNS. https://www.dns-oarc.net/oarc/services/dnsentropy
Carolyn