the imp shows up in the WLAN network:
using BlinkUp to config WLAN, there is ONE green blink, than it goes on off-red-orange forever
using BlinkUp to “Clear Wireless Configuration” there are THREE green blinks, than it goes on off-red-orange forever
WLAN is open (no password)
Any ideas?
What’s the router/sw version?
WiFi Acces Point:
NBG4604 (ZyXEL01AC)
Firmware Version:
V1.00(BWH.2)C0_20110502
got it working with another AP
Was there anything altered from defaults in the router setup?
If you can replicate the issue, we’d really like wireshark traces - this is pretty easy if you run an open wifi network (as the machine running wireshark can see all the packets). Let me know if you can help!
Tried today several times on the Zyxel AP (in my office), still did not work.
Than brought it home where I have BT HH3 (British Telecom Home Hub 3 by Huawei) and imp works just fine.
Will try tomorrow (in the office) on Zyxel, and let you know.
If not working on Zyxel, I can take traces.
Capture #1:
starting point:
a) imp powered off, imp config ereased by BlinkUp
b) all other devices disconnected from AP
c) restart AP (soft restart from web GUI, to loose DHCP state)
d) only laptop is connected
host name: black
IP address: 192.168.1.100
[see attached screenshot]
capture
a) starting wireshark
b) power up imp in April (SparkFun) board
c) orange flashing
configure imp
a) other network,
AP name
password: (none)
remember password OFF
one green blink
off-orange-red [yes, not off-red-orange as before]
60 sec: imp off
imp show up as DHCP client
[see attached screenshot]
Capture #2:
Capture #3:
Pinging 192.168.1.101 with 32 bytes of data:
Reply from 192.168.1.101: bytes=32 time=82ms TTL=255
Reply from 192.168.1.101: bytes=32 time=10ms TTL=255
Reply from 192.168.1.101: bytes=32 time=6ms TTL=255
Reply from 192.168.1.101: bytes=32 time=5ms TTL=255
Ping statistics for 192.168.1.101:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 5ms, Maximum = 82ms, Average = 25ms
ping 192.168.1.101
Pinging 192.168.1.101 with 32 bytes of data:
Reply from 192.168.1.101: bytes=32 time=5ms TTL=255
Reply from 192.168.1.101: bytes=32 time=5ms TTL=255
Reply from 192.168.1.101: bytes=32 time=5ms TTL=255
Reply from 192.168.1.101: bytes=32 time=4ms TTL=255
Ping statistics for 192.168.1.101:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 4ms, Maximum = 5ms, Average = 4ms
Ah, unfortunately Wireshark seems to have failed to put your wifi interface into promiscuous mode, so those traces only record broadcast packets and those to/from your actual PC on 192.168.1.100. Which sadly isn’t a lot of help when debugging a problem in which DHCP seems to succeed, but DNS seems to fail 
Peter
Under network->DHCP server->advanced, what is your DNS setting?
It should be “from ISP”, “user defined” or “DNS relay”. We have seen issues with DNS relay on other routers, hence the question.
primary ns is the AP (192.168.1.1)
secondary not set
Can you try picking “from ISP” instead of “DNS relay”, rebooting the router and imp, and trying again?
Obviously we’ll fix the issue, but I’d like to confirm that this is what we’re seeing.
yep, that’s it
changed both name servers to "From ISP"
seen imp online once than disappeared …
… together with the name server IP addresses
definitely an issue with the WiFi Access Point
Many thanks for looking into this!!!
Glad it’s working, but I’m having problems parsing your description in the last message.
You said it appeared once then disappeared? Is it working now, or was that a firmware update (in which case, you will see it connect once, then reboot and do short-long green flashes for ~30s then solid green for ~30s).
sorry for that (“problems parsing your description”)
still does not work on Zyxel (works on D-LINK and BT HH3)
AP
Zyxel AP (NBG4604, ZyXEL01AC, Firmware Version, V1.00(BWH.2)C0_20110502) has issues with DNS
Now using an old D-LINK AP, works fine.
imp
Have not noticed a firmware update yesterday (Monday)
Guess it happened when it first started to work on HH3 AP (on Sunday)
@deer777: I just queued release-13 with the DNS fix in it for your imp. Could you retest with the Zyxel after it’s updated? I’d appreciate the feedback.
Hi Hugo,
Conncted via an other WiFi Access Point (dlink), to get the FW updgrade.
Shall be Green LED On (not flashing) … have not seen it.
Can you please check if got the r13 firmware?
MAC address: 0c2a690005c0
Thanks!
You did get the new firmware, yes, at 14:08 UTC.
On Zyxel, similar the first post
i.e. cannot connect to Planner.
the imp shows up in the WLAN network:
using BlinkUp to config WLAN, there is ONE green blink, than it goes on off-red-orange now for approx 1 min, than no blinks
You think you can try wireshark again? I think we need to see traces to determine the issue here. I’ve tried to find this Zyxel product online but it appears to have been discontinued according to several resellers.
Can send it to you, just drop me a PM with your address.
Going to work away from home for the next few weeks.