Network/Internet connection has stopped working

[Maurice IRL]

Hello:
The network/Internet connection on a second PC running XP Home on a small
network has suddenly stopped working, for no apparent reason. the following
is the diagnostic log. It includes a manual check of all the physical
connections, as suggested by the diagnostic program.
Help, please!

Last diagnostic run time: 07/12/08 10:00:27
Gateway Diagnostic
Gateway

info The following proxy configuration is being used by IE: Automatically
Detect Settingsisabled Automatic Configuration Script: Proxy Server: Proxy
Bypass list:
info This computer has the following default gateway entry(ies): 192.168.1.254
info This computer has the following IP address(es): 192.168.1.3
info The default gateway is in the same subnet as this computer
info The default gateway entry is a valid unicast address
info The default gateway address was resolved via ARP in 1 try(ies)
info The default gateway was reached via ICMP Ping in 1 try(ies)
info TCP port 80 on host 65.55.21.250 could not be reached (Error code 0x274c)
info TCP port 80 on host 207.46.19.190 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.19.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.192.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.193.254 could not be reached (Error code
0x274c)
warn The Internet host www.microsoft.com could not be reached
action Automated repair: Renew IP address
action Releasing the current IP address...
action Successfully released the current IP address
action Renewing the IP address...
action Successfully renewed the current IP address
info This computer has the following default gateway entry(ies): 192.168.1.254
info This computer has the following IP address(es): 192.168.1.3
info The default gateway is in the same subnet as this computer
info The default gateway entry is a valid unicast address
info The default gateway address was resolved via ARP in 1 try(ies)
info The default gateway was reached via ICMP Ping in 1 try(ies)
info TCP port 80 on host 207.46.19.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.192.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.193.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 65.55.21.250 could not be reached (Error code 0x274c)
info TCP port 80 on host 207.46.19.190 could not be reached (Error code
0x274c)
warn The Internet host www.microsoft.com could not be reached
action Automated repair: Reset network connection
action Disabling the network adapter
action Enabling the network adapter
info Network adapter successfully enabled
info This computer has the following default gateway entry(ies): 0.0.0.0
warn There is no default gateway entry
action Manual repair: Reboot modem
info This computer has the following default gateway entry(ies): 192.168.1.254
info This computer has the following IP address(es): 192.168.1.3
info The default gateway is in the same subnet as this computer
info The default gateway entry is a valid unicast address
info The default gateway address was resolved via ARP in 1 try(ies)
info The default gateway was reached via ICMP Ping in 1 try(ies)
info TCP port 80 on host 207.46.19.190 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.19.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.192.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.193.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 65.55.21.250 could not be reached (Error code 0x274c)
warn The Internet host www.microsoft.com could not be reached
info Waiting some time for the modem/router to stabilize
action Automated repair: Renew IP address
action Releasing the current IP address...
action Successfully released the current IP address
action Renewing the IP address...
action Successfully renewed the current IP address
info This computer has the following default gateway entry(ies): 192.168.1.254
info This computer has the following IP address(es): 192.168.1.3
info The default gateway is in the same subnet as this computer
info The default gateway entry is a valid unicast address
info The default gateway address was resolved via ARP in 1 try(ies)
info The default gateway was reached via ICMP Ping in 1 try(ies)
info TCP port 80 on host 207.46.19.190 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.19.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.192.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 207.46.193.254 could not be reached (Error code
0x274c)
info TCP port 80 on host 65.55.21.250 could not be reached (Error code 0x274c)
warn The Internet host www.microsoft.com could not be reached
info Redirecting user to support call

IP Layer Diagnostic
Corrupted IP routing table

info The default route is valid
info The loopback route is valid
info The local host route is valid
info The local subnet route is valid
Invalid ARP cache entries

action The ARP cache has been flushed

IP Configuration Diagnostic
Invalid IP address

info Valid IP address detected: 192.168.1.3

Wireless Diagnostic
Wireless - Service disabled

Wireless - User SSID

Wireless - First time setup

Wireless - Radio off

Wireless - Out of range

Wireless - Hardware issue

Wireless - Novice user

Wireless - Ad-hoc network

Wireless - Less preferred

Wireless - 802.1x enabled

Wireless - Configuration mismatch

Wireless - Low SNR


WinSock Diagnostic
WinSock status

info All base service provider entries are present in the Winsock catalog.
info The Winsock Service provider chains are valid.
info Provider entry MSAFD Tcpip [TCP/IP] passed the loopback communication
test.
info Provider entry MSAFD Tcpip [UDP/IP] passed the loopback communication
test.
info Provider entry RSVP UDP Service Provider passed the loopback
communication test.
info Provider entry RSVP TCP Service Provider passed the loopback
communication test.
info Connectivity is valid for all Winsock service providers.

Network Adapter Diagnostic
Network location detection

info Using home Internet connection
Network adapter identification

info Network connection: Name=Local Area Connection (Gobnait's Friendly PC),
Device=Broadcom 440x 10/100 Integrated Controller, MediaType=LAN,
SubMediaType=LAN
info Ethernet connection selected
Network adapter status

info Network connection status: Connected

HTTP, HTTPS, FTP Diagnostic
HTTP, HTTPS, FTP connectivity

warn FTP (Passive): Error 12029 connecting to ftp.microsoft.com: A
connection with the server could not be established
warn HTTPS: Error 12029 connecting to www.passport.net: A connection with
the server could not be established
warn FTP (Active): Error 12029 connecting to ftp.microsoft.com: A connection
with the server could not be established
warn HTTP: Error 12029 connecting to www.hotmail.com: A connection with the
server could not be established
warn HTTP: Error 12002 connecting to www.microsoft.com: The operation timed
out
warn HTTPS: Error 12002 connecting to www.microsoft.com: The operation timed
out
error Could not make an HTTP connection.
error Could not make an HTTPS connection.
error Could not make an FTP connection.

 

[Joan Archer]

I didn't bother reading through this long post but do you have Zone Alarm
installed and did you install the latest Microsoft Updates.
If you did the fix is to update Zone Alarm to the latest version.

 

[Big_Al]

Hello:
The network/Internet connection on a second PC running XP Home on a small
network has suddenly stopped working, for no apparent reason. the following
is the diagnostic log. It includes a manual check of all the physical
connections, as suggested by the diagnostic program.
Help, please!

<snip log>
Have you recently installed MS updates, and if so did you do KB951748
and if so do you run ZoneAlarm Firewall?

This seems to be this weeks problem child, that's why I ask.

 

[Maurice IRL]

Thanks, Joan and Big_Al.
The answer is yes, on one PC. But on the problem PC, since I can't access
the Internet, I can't even do the updates you mention! Do you know any way
around this vicious circle?

 

[Charles Lee]

problems are long fixed with security update & ZA in ZoneAlarms latest
update... all releases covered, from basic to the full suite

either uninstall security update KB951748 or simply lower ZoneAlarms
firewall to medium to allow you to regain access to the net on affected pv,
then...

Follow the link below, download new update version of ZA 70.483.000, and
then download the security update KB 951748 afterwards.
I have done all pc's on my home network... all back to normal....
http://download.zonealarm.com/bin/free/pressReleases/2008/LossOfInternetAccessIssue.html

 

[Big_Al]

Thanks, Joan and Big_Al.
The answer is yes, on one PC. But on the problem PC, since I can't access
the Internet, I can't even do the updates you mention! Do you know any way
around this vicious circle?

Exit Zone Alarm. Long enough to download the new version.

 

[Ken Blake, MVP]

On Sat, 12 Jul 2008 06:10:01 -0700, Maurice IRL <Maurice

Thanks, Joan and Big_Al.
The answer is yes, on one PC. But on the problem PC, since I can't access
the Internet, I can't even do the updates you mention! Do you know any way
around this vicious circle?

Turn on the Windows firewall and uninstall ZA. Then you'll be able to
download and install the new version of ZA.

Or just turn on the Windows firewall and uninstall ZA, and leave it
that way. ZA doesn't really have any advantages over the Windows
firewall anyway.

 

[PA Bear [MS MVP]]

1. Uninstall KB951748 via Add/Remove Programs.

2. Upgrade your ZA application using the appropriate link here:
http://download.zonealarm.com/bin/free/pressReleases/2008/LossOfInternetAccessIssue.html

NB: Do NOT use Option #2 if at all possible! The vulnerability addressed by
KB951748 *is* a big deal! See
http://blog.washingtonpost.com/securityfix/2008/07/patch_the_entire_internet_tues_1.html

3. Reinstall KB951748.

 

[Maurice IRL]

Thank you, Ken, Charles and Big_Al, for your help, not only in solving the
immediate problem, but in giving me a better understanding of the principles
of firewalling.
I've now permanently removed ZoneAlarm and changed back to Windows Firewall.
Let's see how it goes!

 

[Ken Blake, MVP]

On Sun, 13 Jul 2008 02:57:00 -0700, Maurice IRL <Maurice

Thank you, Ken, Charles and Big_Al, for your help, not only in solving the
immediate problem, but in giving me a better understanding of the principles
of firewalling.

You're welcome. Glad to help.

 

[Maurice IRL]

Thanks, Robear, for these very interesting websites.

I notice that while the affected PC (XP Home SP2) was updated by KB951748,
my own PC (XP Pro SP2) was not, and a check on MS Update doesn't suggest it.
I presume that it only applies to XP Home.