G
Guest
I have a 4 computer home network that connects to the internet via both wired
and wireless through 1 router a few switches & a cable modem. Until
recently, it all worked perfectly. For no apparent reason, I now cannot
connect to the internet on 1 of the 4 PC's. It is 1 of the 3 wired ones. I
tested the physical wire to that PC with a laptop and that was not the
problem. I tried a wireless USB card on it, but it was no better. I tried
disabling firewalls -both hardware and software, but no change. It runs XP
Home, SP2. I do notice the little yellow Windows Update shield in the tray,
it says downloading updates, 0% complete. Yesterday when it wasn't working,
I crashed something, and the error reporting tool was able to send and
recieve from the internet. That is strange. No other software seems to be
able to - browsers, McAfee Update, Limewire, etc.
The browsers (ie,Avant, Firefox) all have the same problem. The page cannot
be displayed - Cannot find server or DNS error. Sometimes they say they are
opening the page at the bottom, but never do.
Sometimes I can ping other PC's on my network & the internet with no
problem, but other times, some or all of the requests time out. I cannot log
into my router from that PC. I can ping yahoo.com, sometimes I get all 4
packets, but other times some or all are lost.
I read many articles on MTUs and other issues, but nothing seems to have
fixed this. When I tried testing for MTU size on black hole routers it always
timed out.
The IPCONFIG /ALL looks normal except the Node type is unknown.
Any help would greatly be appreciated, I have no clue what to try next. Of
course it is the main family PC.
and wireless through 1 router a few switches & a cable modem. Until
recently, it all worked perfectly. For no apparent reason, I now cannot
connect to the internet on 1 of the 4 PC's. It is 1 of the 3 wired ones. I
tested the physical wire to that PC with a laptop and that was not the
problem. I tried a wireless USB card on it, but it was no better. I tried
disabling firewalls -both hardware and software, but no change. It runs XP
Home, SP2. I do notice the little yellow Windows Update shield in the tray,
it says downloading updates, 0% complete. Yesterday when it wasn't working,
I crashed something, and the error reporting tool was able to send and
recieve from the internet. That is strange. No other software seems to be
able to - browsers, McAfee Update, Limewire, etc.
The browsers (ie,Avant, Firefox) all have the same problem. The page cannot
be displayed - Cannot find server or DNS error. Sometimes they say they are
opening the page at the bottom, but never do.
Sometimes I can ping other PC's on my network & the internet with no
problem, but other times, some or all of the requests time out. I cannot log
into my router from that PC. I can ping yahoo.com, sometimes I get all 4
packets, but other times some or all are lost.
I read many articles on MTUs and other issues, but nothing seems to have
fixed this. When I tried testing for MTU size on black hole routers it always
timed out.
The IPCONFIG /ALL looks normal except the Node type is unknown.
Any help would greatly be appreciated, I have no clue what to try next. Of
course it is the main family PC.