Captain, what server you play? In general, once it happens, run connection test report via Steam launcher 4-th option and reply here once you've done it, or you can check it yourself:
once the issue appears, open Windows Command Prompt (press Windows + R and type cmd, press enter afterwards), type:
for PVP Global: ping 172.93.104.50 -n 25,
for PVP EU: ping 89.163.234.94 -n 25,
for PVE: ping 89.163.254.200 -n 25,
then check the packet lost statistic and comprare ping time to your usual value.