traceroute: bad address 'openwrt.org'
ping: bad address 'openwrt.org'
Server: 127.0.0.1
Address 1: 127.0.0.1 localhost
nslookup: can't resolve 'openwrt.org': Name or service not known
SSH into your miner and try: ping 8.8.8.8
If you get a successful ping then you have net access but no DNS. To fix this, go into your webGUI and change the adapter's DNS entry to 8.8.8.8. Reboot the unit and then try the diagnostic check(s) again to see if it works.
You would use: osc.ispace.co.uk:3335
No need for the http:// or tcp+stratum://