Hi everyone,my apologies to write it in english because I’m new in Germany . I have a 2in1 router(Fritzbox 7560) from my ISP (ComIn Ingolstadt-O2) which is FTTH internet and my Netduma set up is : ISP - Fritzbox - Netduma . But I feel the unstable connection when I play CoD with that set up , I got a friend ,who lives in the US told me that to have a separate modem (not 2in1 modem router) . Anyone who has any idea about that , Please help .