PLEASE!! Irregular Network PLEASE!!

K

Krypt0n1te

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Hi guys, this is driving me mad. I really have very very little knowledge of networks, but I coped well for the past 5 years on my own, connecting about 20 PC's to a normal straight forward DHCP server via a 24port hub/Network Switch.

I've now bought 8 new Notebooks, unfortunately running Win 7 Starter Ed and they are connected to the same server with a TP-Link WR1043ND Router.

If I ping the server from a workstation I get various different results.

Everything work fine right up to now, but now suddenly everything is dead.

I cant even connect to the network.

Please help me to troubleshoot this.

PS. As I said before I really really know very little about networks.

All I know is that EVERYTHING was working perfectly for the past 3 days and since yesterday evening it is a complete balls-up.

If I need to paste results please just give me the commands. Thx
 
Plug out everything from the switch,reconnect the server,connect 1 machine,can you ping server? do a ping -t serverip and leave it running

Start reconnecting devices with 1minute time inetween and see if it goes wonky at any stage
 
Now it is working. This is what I get when I ping the server from one of the routers.

Pinging 192.168.1.100 with 32 bytes of data:
Reply from 192.168.1.100: bytes=32 time=256ms TTL=128
Reply from 192.168.1.100: bytes=32 time=555ms TTL=128
Reply from 192.168.1.100: bytes=32 time=196ms TTL=128
Request timed out.

Ping statistics for 192.168.1.100:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 196ms, Maximum = 555ms, Average = 335ms

Sometimes I get all my replies within less than 1ms.
 
Hi Krypt0n1te,

Are the laptops all on the same range as the rest of the PC's IP ranges? I had a similar issue with a few laptops in my office, and had to find open addresses in our range and statically assign them to the Laptops...
 
Krypt0n1te said:
Now it is working. This is what I get when I ping the server from one of the routers.

Pinging 192.168.1.100 with 32 bytes of data:
Reply from 192.168.1.100: bytes=32 time=256ms TTL=128
Reply from 192.168.1.100: bytes=32 time=555ms TTL=128
Reply from 192.168.1.100: bytes=32 time=196ms TTL=128
Request timed out.

Ping statistics for 192.168.1.100:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 196ms, Maximum = 555ms, Average = 335ms
Click to expand...

Is that over a local network, in the same building? Those pings are SUPER high! Are you connecting via cable or wireless?
 
Packet loss on a single hub cabled network shouldn't even be a possibility unless a device on the network is borked
 
@carstensdj. I will have a look, as far as I know the DHCP server assigns the IP's.

Problem is, everything worked fine, and now without any changes (except moving them about 25km's from home) everything goes belly up.
 
EDIT EDIT: PLEASE NOTE GUYS, I moved the network from the 24port Hub/Network Switch to the Wireless Network using the TP-Link WR1043ND
 
plug a device in if you suspect network issues then firstly,could just be wireless interference on that band,in which case you'd have to swap to a different channel
 
...and then 10 minutes later I get this.

Pinging 192.168.1.100 with 32 bytes of data:
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.

Ping statistics for 192.168.1.100:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

gonna do what PsyWulf suggested
 
Krypt0n1te said:
...and then 10 minutes later I get this.

Pinging 192.168.1.100 with 32 bytes of data:
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.

Ping statistics for 192.168.1.100:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

gonna do what PsyWulf suggested
Click to expand...
What's your wireless signal like? Are you not too far from the router?
 
I think you guys might be onto something here.

If I use WiFi analyzer on my Android phone the Network keeps appearing/disappearing the whole time. But signal strength is -34dBm
 
I could kiss you guys right now!!!!!!!!! Check this out!!


Pinging 192.168.1.100 with 32 bytes of data:
Reply from 192.168.1.100: bytes=32 time=1ms TTL=128
Reply from 192.168.1.100: bytes=32 time<1ms TTL=128
Reply from 192.168.1.100: bytes=32 time<1ms TTL=128
Reply from 192.168.1.100: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.100:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms

This explains everything, I live on a farm, and obviously there is no wireless networks in reach, thus everything worked perfectly. Now I get to my new offices and suddenly I have heaps and heaps of smelly stuff.

So I changed to channel 12 or something and for now everything seems to be working fine.

I do have one Q though.

What the _______ is the use of the "auto" function if it doesn't work??
 
Auto works,just not how you want(think it should) ;)
 
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