Hello,
I have a little problem that I can't seem to figure out. When I try to connect
my TS-7400 to
the internet via a Novatel U720 EVDO modem, the system hangs. No serial
console, no
ssh. I think it's related to the power supply, since this modem sucks so much
juice that it
ships with a Y-cable so it can draw power from two USB ports. I have it
connected to my
TS-7400 via an unpowered USB hub.
I saw that someone else on the forum was having power issues using a GSM modem
on
the TS-7200 series boards. Aparently that was solved by using a jumper to
bypass the
onboard voltage regulator. The TS-7400 doesn't have that as far as I can tell.
I'm using
the stock 5v, 1A (regulated I assume) power supply that comes with the
development kit.
Power supply voltage is around 4.70 volts with everything plugged in and at a
prompt.
When I try to bring up the modem, the voltage drops to about 4.53. Is that low
enough to
cause the board to hang?
It looks like pppd connects ok, but I'm not sure what is going on after that.
It crashes on
the command "pppd call sprint", where "/etc/ppp/peers/sprint" contains my ppp
settings
for a Sprint mobile broadband account. For reference, "lsmod" includes all of
the modules
I thought would be necessary for this ppp connection: ppp_synctty, ppp_async,
ppp_generic, slhc, usbserial. The pppd log dump is listed below (I had to
fetch the log
after rebooting since it crashes every time). Any thoughts on what might be
causing the
crash?
Thanks,
Kyle Vogt
Justin.tv, Inc.
Starting SPRINT connect script
Serial connection established.
using channel 1
Using interface ppp0
Connect: ppp0 <--> /dev/ttyUSB0
sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x9137b403> <pcomp>
<accomp>]
rcvd [LCP ConfReq id=0x2 <asyncmap 0x0> <magic 0x44f0b14e> <pcomp> <accomp>]
sent [LCP ConfAck id=0x2 <asyncmap 0x0> <magic 0x44f0b14e> <pcomp> <accomp>]
rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x9137b403> <pcomp>
<accomp>]
sent [LCP EchoReq id=0x0 magic=0x9137b403]
kernel does not support PPP filtering
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <
ms-dns3 0.0.0.0>]
rcvd [LCP DiscReq id=0x3 magic=0x44f0b14e]
rcvd [LCP EchoRep id=0x0 magic=0x44f0b14e 91 37 b4 03]
rcvd [IPCP ConfReq id=0x1 <addr 68.28.81.69>]
sent [IPCP ConfAck id=0x1 <addr 68.28.81.69>]
rcvd [IPCP ConfRej id=0x1 <compress VJ 0f 01>]
sent [IPCP ConfReq id=0x2 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [IPCP ConfReq id=0x2 <addr 68.28.81.69>]
sent [IPCP ConfAck id=0x2 <addr 68.28.81.69>]
rcvd [IPCP ConfNak id=0x2 <addr 68.244.255.125> <ms-dns1 68.28.82.11> <ms-dns3
6
8.28.90.11>]
sent [IPCP ConfReq id=0x3 <addr 68.244.255.125> <ms-dns1 68.28.82.11> <ms-dns3
6
8.28.90.11>]
rcvd [IPCP ConfReq id=0x3 <addr 68.28.81.69>]
sent [IPCP ConfAck id=0x3 <addr 68.28.81.69>]
rcvd [IPCP ConfAck id=0x3 <addr 68.244.255.125> <ms-dns1 68.28.82.11> <ms-dns3
6
8.28.90.11>]
replacing old default route to eth0 [192.168.10.1]
Cannot determine ethernet address for proxy ARP
local IP address 68.244.255.125
remote IP address 68.28.81.69
primary DNS address 68.28.82.11
secondary DNS address 68.28.90.11
Couldn't get PPP statistics: Operation not supported
Script /etc/ppp/ip-up started (pid 549)
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