If you have any doubt on the IP link, you can make some tests from the OS which are close enough to what happens with our links.
You need to use iPerf which works for Windows and for Linux.
We will launch it on each side, one as server, the other as client. It will send a stream of byte and analyze losts, jitter, ...
Server side: iperf -u -p 4404 -s
Client side: iperf -u -p 4404 -c 192.168.0.12 -l 256 -b 150000 -i 10 -t 300
Do not forget to use external port number for client !
Commands details:
u -p 4404: UDP port 4404s: serverc 192.168.0.12: client which connects to the specified server's IPl 256: send 256 bytes packetsb 150000: bandwidth 150 kbpsi 10: report every 10 secondst 300: 300 seconds test (5 minutes)
NOTE: there are some public servers for tests. Sample: iperf -u -p 5200 -c bouygues.testdebit.info -l 256 -b 150000 -i 10 -t 300