Search found 18 matches
- Tue Oct 09, 2012 10:35 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
It seems you are loosing about the amount of voltage I would expect if you have a non recovered F3 polyfuse. Please measure across the polyfuse (F3 on the back of the board) to see if you are losing a good part of a volt over it. It would explain why you cannot get the voltage level between TP1 and...
- Wed Oct 03, 2012 9:44 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
Yep, it really bugs me that I only have problems with the NW devices. I would put it down to a fault on the USB connection to the wired ports, but it's the same for a wireless connection on a USB hub OR straight into the built in port. Anyone know of a (cheap) USB to cat5 adaptor which will work on ...
- Wed Oct 03, 2012 8:51 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
It seems you are loosing about the amount of voltage I would expect if you have a non recovered F3 polyfuse. Please measure across the polyfuse (F3 on the back of the board) to see if you are losing a good part of a volt over it. It would explain why you cannot get the voltage level between TP1 and...
- Tue Oct 02, 2012 9:47 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
Revceived this power supply this morning http://www.amazon.co.uk/gp/product/B008 ... 02_s00_i00
Runs at 4.40v.
Runs at 4.40v.
- Tue Oct 02, 2012 9:45 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
So here http://tiny.cc/dbpjlw is my prototyped 5v power supply based on a 7805 voltage regulator. The design is modified from this page : http://www.eleinmec.com/article.asp?16 leaving out the rectifier circuit since I used a 12vdc 1.25A source. No load voltage was spot on 5.00v, and running under l...
- Fri Sep 28, 2012 10:01 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
I said I was closing the issue, but here I am, posting again. As a test, I have removed the USB connector from the end of my latest power supply, and connected it directly to the 5v and ground pins on the GPIO connectors. I now get 4.70v under load on the RPi rather than the 4.4v I got with the same...
- Thu Sep 27, 2012 10:34 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
To close this post: Another power supply received this morning, advertised at 5.2v, no load voltage was actually 4.8v, and dropped to 4.4v when the RPI was running with minimal peripherals plugged in. All I had was HDMI to a monitor, NW cable and a powered USB hub. The KB and mouse were pugged into ...
- Mon Sep 24, 2012 1:51 pm
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
New power supply. Pull down voltage now 4.73v-4.75v so marginal, but better. Same result on non-connect board.
- Mon Sep 24, 2012 10:27 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
New board arrived from Element14 this morning. Plugged in, network connected, test voltage 4.50v. As you can see, the DHCP lease wasn't taken at the first bite.
New power supply will arrive this afternoon. Will test that and post result.
New power supply will arrive this afternoon. Will test that and post result.
- PiNW3.gif (27.8 KiB) Viewed 2616 times
- Mon Sep 24, 2012 7:55 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
You definitely have a problem with the USB lead. I suggest you go out and buy a phone charger cable from a phone shop. What you have is probably only designed for data and it may cause you problems in the future even with your working board. It is very possible that your two boards are differently ...
- Thu Sep 20, 2012 2:59 pm
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
It's not easy to read, but I can't seem to find your keyboard. I also noticed that you have the hub appearing twice. I assume it's a 7 port hub internally connected as 2 cascaded 4 port hubs? If you disconnect the usb hub and all other usb stuff, does your wired network connection work like that? T...
- Thu Sep 20, 2012 12:26 pm
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
Yes, the USB ports work, have tried both. Yes, ethernet lights on the non-connect board light up in the same way as the connecting board. Results of lsusb: PiNW2.gif Yes - same setup as connecting card, no connection on non-connecting. The only connections to my Pi are power, HDMI out (to DVI adapto...
- Thu Sep 20, 2012 10:35 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
try another [see fatter or shorter] power lead - you are too low 5% of 5V is 4.75V Took the USB lead out of the equation and powered using a 5v 2A supply onto the GPIO pins as suggested http://elinux.org/RPi_Hardware#Power_Supply_Problems . TP1/TP2 now read 5.07v. Still will not connect to the netw...
- Thu Sep 20, 2012 9:44 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
Have also tried using a static IP address. Obviously no errors about DHCP on boot up, but still no connectivity. Error message reports detination address unreachable through correct interface.
- Thu Sep 20, 2012 9:42 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
Working Pi = 4.60v
- Thu Sep 20, 2012 9:29 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
TP1 -> TP2 = 4.59v
- Thu Sep 20, 2012 9:23 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Re: Why can't I get the networking to work
Power supply - yes. Three different ones, 1A, an ipad charger (1.6A I think) and a 3.1A beast. Also using a powered USB hub. Reading up, I think it could be related to the buitl in USB on the Pi. I understand that the on-board wired Lan port is actually implemented as a USB device. This is one expla...
- Thu Sep 20, 2012 8:12 am
- Forum: Troubleshooting
- Topic: Why can't I get the networking to work
- Replies: 29
- Views: 3529
Why can't I get the networking to work
I have two (I think identical) Pi. One of them connects to a network without issue, whether it's wired or wireless.The other just will not connect under any circumstances. Same peripherals, same distro, interface looks up, but will not get an IP address. I get the following several times during Boot...