Re: network connection issue.
I’ve seen the same behavior with current HW and FW, but I have not found a way to reproduce it at will. When the OS gets into this state, in addition to the LCD showing “Connecting”, the mobile app will show “Network Error” much of the time.
Here’s some info about my environment and what I’ve seen:
OS: HW – 2.3, FW – 2.1.4, Mobile App – 1.4.2
Network environment: OS is on the same subnet as the PC (used for ping’ing) and the Mobile app. The OS is hardwired. The PC and App devices are wireless through a standalone AP that is connected to the same switch as the OS.
Ping data from a windows PC (192.168.1.113 below) shows that the connection is seen in 3 states over a short period of time. The results were reproduced with OS IP address assigned by DHCP reservation (192.168.1.32 below) and Static IP. ping data below.
• ping – successful
• ping – Request timed out
• ping – Destination host unreachable
In windows if the ‘reply from’ address is the sender’s IP address, the unreachable message indicates that the arp request for the destination MAC failed which is why it showed unreachable vs timed out.
Ping data:
C:\Users\Dave>time /T
08:38 AM
C:\Users\Dave>ping 192.168.1.32
Pinging 192.168.1.32 with 32 bytes of data:
Reply from 192.168.1.113: Destination host unreachable.
Reply from 192.168.1.113: Destination host unreachable.
Reply from 192.168.1.113: Destination host unreachable.
Reply from 192.168.1.113: Destination host unreachable.
Ping statistics for 192.168.1.32:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
C:\Users\Dave>time /T
08:38 AM
C:\Users\Dave>ping 192.168.1.32
Pinging 192.168.1.32 with 32 bytes of data:
Reply from 192.168.1.32: bytes=32 time=5ms TTL=64
Reply from 192.168.1.32: bytes=32 time=3ms TTL=64
Request timed out.
Request timed out.
Ping statistics for 192.168.1.32:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 3ms, Maximum = 5ms, Average = 4ms
C:\Users\Dave>time /T
08:39 AM
C:\Users\Dave>ping 192.168.1.32
Pinging 192.168.1.32 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.1.32: bytes=32 time=9ms TTL=64
Reply from 192.168.1.32: bytes=32 time=3ms TTL=64
Ping statistics for 192.168.1.32:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 3ms, Maximum = 9ms, Average = 6ms
C:\Users\Dave>time /T
08:40 AM
C:\Users\Dave>ping 192.168.1.32
Pinging 192.168.1.32 with 32 bytes of data:
Reply from 192.168.1.32: bytes=32 time=116ms TTL=64
Request timed out.
Request timed out.
Reply from 192.168.1.32: bytes=32 time=6ms TTL=64
Ping statistics for 192.168.1.32:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 6ms, Maximum = 116ms, Average = 61ms
C:\Users\Dave>time /T
08:41 AM
C:\Users\Dave>ping 192.168.1.32
Pinging 192.168.1.32 with 32 bytes of data:
Reply from 192.168.1.113: Destination host unreachable.
Reply from 192.168.1.113: Destination host unreachable.
Reply from 192.168.1.113: Destination host unreachable.
Reply from 192.168.1.113: Destination host unreachable.
Ping statistics for 192.168.1.32:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),