SharkRF openSPOT2 User Manual page 103

Troubleshooting
If the LED is pulsating like this, then the openSPOT2 is trying to connect to the selected server, but it can't for
some reason. If it's not pulsating like on the animation, check the LED states section for more information about
the current LED state.
The server may be currently offline, or there may be a connection issue between your openSPOT2 and the
server. You can try using another server, or enable the Override DHCP DNS servers setting.
Also check if the server password is set correctly (in case there's a server password), and that your connector
settings are valid (example: if there's a callsign setting, make sure your callsign is valid, if there's a DMR/CCS7 or
NXDN ID setting, make sure your ID is valid for your callsign).
If you want to connect to the BrandMeister network, and the openSPOT2 won't connect to any BrandMeister
server, then make sure you use the hotspot security password you've set on your BrandMeister SelfCare page (or
turn off hotspot security so the default server password can be used).
There are dropouts in incoming calls, voice is stuttering
Make sure you use a server nearest to your location to avoid network dropouts and high latency. Please keep in
mind, that packet loss and high latency can occur in VoIP (Voice over IP) streams even if you have a really high
quality network connection.
Check the dejitter queue graph on the Status page for invalid seqnum errors. These indicate that the openSPOT2
does not receive all network packets so there are missing parts from the incoming call's stream.
If there are no invalid seqnum errors, but the dejitter queue graph shows that the queue gets empty during a call,
then you can try increasing the dejitter queue length at the Network settings section.
Try to set another Wi-Fi channel in your Wi-Fi network (see the next troubleshooting entry for more info). The
currently used one may be overcrowded, which you may not notice during web browsing, as the web uses a
protocol which resend missing data frames, but this can't be done in real time VoIP streams so the packet loss
issue becomes instantly noticable.
Wi-Fi disconnects (blue LED) or internet connection errors (red/blue LED)
Try to set another Wi-Fi channel in your Wi-Fi network. The currently used one may be overcrowded. It is
advisable to use Wi-Fi channels 1, 6 or 11. Do not use the others as they only cause more interference. Also try
placing the openSPOT2 closer to your Wi-Fi router / access point.
Color code mismatch warnings on the web interface
Make sure the color code programmed for your radio's current channel is matching the openSPOT2's color code. If
they match, then probably there's an offset between the radio's TX frequency and the openSPOT2's RX
frequency. Please try to use AutoCal, or manually enter different frequencies in +-100 Hz steps at the RX offset
on the Modem page.
The device can't check firmware upgrades, it shows retrying
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