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Rickles

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#214651 22-May-2017 20:36
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I have recently acquired an external drive that can connect to a network by either wifi or ethernet, as well as the usual direct USB cable to a PC .... a sort of simple NAS.

 

The unit by and large works fine, and I can transfer files back and forth using any of the above connection means, and the unit also doubles as a wifi access point to an internet connection.

 

However, I've found that when using the ethernet connection to my router, as soon as I turn the device off, I loose internet access on my desktop ... sometimes the network icon (Task Tray) will show the yellow disconnect flag, whilst other times neither email or browser will work.

 

Running the Diagnostic option on the network connection gets things working, with the resultant message saying "could not access the gateway". Rebooting also gets things back to normal, as does simply removing the ethernet cable from the (turned off) device.

 

The problem doesn't happen when used in wifi mode.

 

It's almost like the device is 'turning off' the router or the PC's network adapter?

 

Any views or opinions please?


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richms
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  #1786244 22-May-2017 20:50
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Check the IP and gateway you have been assigned on the computer when the device is on. It may be doing its own nat and have its own DHCP server that is messing things up.





Richard rich.ms



Rickles

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  #1786249 22-May-2017 21:14
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Rich ... yeah, good points that I will check, thanks. 

 

The router logs show everything being assigned correctly both before and after switching device off and on, and I thought I'd assigned it a static IP/turned off DHCP too.

 

 


richms
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  #1786252 22-May-2017 21:26
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I have a couple of little wifi HDDs that have the buggiest crappiest web interface on them that half the time errors out and doesnt actually set what you tell it to untill its factory reset and you have another go at it. Does all the usual things for a cheap wifi device, acts as a repeater, a router, an AP, just dont dare try change from one mode to another or it will stuff up. Chinese software at its finest. And naturally no update ever for the thing despite having a link in the UI to check for updates which says the same thing regardless of having internet connection or being a standalone device with no uplink at all.

 

Moral of those boxes is dont trust what you set on things to be what really is happening.





Richard rich.ms



Rickles

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  #1786260 22-May-2017 21:47
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Ha ha ha ... oh yes, point taken (and experienced before) tongue-out

 

Will do various checks in the morning, and maybe a re-set or two.


Rickles

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  #1786513 23-May-2017 10:43
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Found no specific DHCP control available.  Turned off Samba and DNS features, but problem persisted.

 

Ran device through an ethernet switch, and problem cured!

 

Hmmmm undecided


Rickles

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  #1786517 23-May-2017 10:50
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Weirder still .... connected device using an Ethernet crossover adapter ... no problem at all!

 

 


 
 
 

Shop now on AliExpress (affiliate link).
lxsw20
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  #1786523 23-May-2017 10:57
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Auto MDI-X (the ability to use an xover cable on non xover) has been around a while, you find it on most gigabit devices. 


fe31nz
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  #1787118 23-May-2017 22:07
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lxsw20:

 

Auto MDI-X (the ability to use an xover cable on non xover) has been around a while, you find it on most gigabit devices. 

 

 

It is part of the gigabit standard - so all gigabit Ethernet devices are required to do it.  It was an optional add-on for 100 Mbit/s Ethernet, added after the original standard was published.  In those days, good switches had auto MDI-X and you could find some Ethernet cards that did it also.  Having to use crossover cables was a pain.


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