Ping Probleme
29Nov2009
Hallo.
Ich könnte auf Deutsch schreiben, aber
das wäre zu langsam ...
I have three XP laptops & lots of "little problems."
1) The laptops cannot ping one another.
That means I cannot use intranet time sync utilities.
2) The Netlogon service will not start.
I tried the Winsock reset procedures -
at first on the 2 XP-Pro laptops (T & I).
Immediately afterwards I had partial ping success
but Netlogon would still not start.
3) I have not yet been able to ping my usb netzkabel
IP addresses. I network these 3 laptops various ways
depending on what internet access connections I have.
I always use 1 usb netzkabel between laptops I & G.
G has XP-Home. I always use static IP addresses
whether I am using usbnetz, ethernet patchkabel
or Ad Hoc wlan. Laptop T is 11 years old and the most
difficult to network. I now use a pcmcia-wlan card
to connect T with I & G. Because I also use a usbnetz
kabel between I & G (the two more modern XP laptops),
I have a redundant LAN connection between I & G.
4) Is there any way to connect T with I & G via wlan
but not also connect I & G via the ad hoc connections?
I recently discovered how to set the ad hoc wlan
connections @ 54Mbps instead of 11Mbps.
The usbnetz kabel connect (now) at a stated 480Mbps.
I recently upgraded the usbnetz drivers. Prolific in Taiwan
seems to be the only supplier of usbnetz cables.
The usbnetz connection previously was a stated 12Mbps.
Regardless of the stated speed, the usbnetz connection
copies files at about 4Mbps, whereas ethernet at a stated
speed of 100Mbps copies at about 1.5Mbps or less.
The 54Mbps wlan copy at about 1Mbps or less.
The usbnetz kabel at 12Mbps was always about 3 or 4
times faster than the ethernet at a stated 100Mbps. Why?
5) The partial ping success lasted about 30 minutes.
After the XPP winsock resets, I could ping all the wlan
connections but still not the usbnetz connections.
I had to make some nic re-adjustments which maybe killed
the partial ping success. I don't now why the reset on the
2 XPP laptops (I & T) allowed pinging the untouched
XPH laptop (G). It might be that installing the usbnetz
connections somehow impedes the pinging. If so, I don't
know why. The "networking" works fine. Each connection
reads & writes both directions without problems.
The XP "Search for Computers" finds all computers, but
I still cannot ping any connections.
6) Activating a parallel port direct cable connection
between I & T for some unknown reason enables pinging
between I & T - all connections (usbnetz, wlan, DCC ...)
I have no idea why that happens.
7) For some unknown reason these ping problems do not
exist when I use an ethernet crossover cable - at least
that was always the case. I would have to test again.
8) The ping problems exist whether I have ZoneAlarmFree
firewall turned on or off on laptops G & I.
9) I cannot reinstall IPv6 on laptop G.
Any helpful replies/insights appreciated.
Danke.
Grüße,
AEN
Æ
|