tcp

C:WindowsSystem32> netsh.exe interface ipv4 show interface

Idx Met MTU State Name

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1 50 4294967295 connected Loopback Pseudo-Interface 1 12 50 1500 disconnected Drahtlosnetzwerkverbindung 15 5 1500 disconnected Mobile Breitbandverbindung 11 10 1500 connected LAN-Verbindung 14 50 1477 disconnected Bluetooth-Netzwerkverbindung 16 10 1350 disconnected LAN-Verbindung* 3

C:WindowsSystem32>

C:WindowsSystem32> netsh interface ipv4 set subinterface mtu=1400 store=persistent

How to enable PMTU: https://technet.microsoft.com/en-us/library/cc957539.aspx

http://www.duckware.com/blog/how-windows-is-killing-internet-download-speeds/index.html

http://blog.schaefer-it.net/2009/11/25/windows-7-mtu-fur-netzwerkadapter-einstellenig/

netsh interface tcp show global netsh interface tcp show heuristics netsh interface tcp set global autotuningl=normal netsh interface tcp set global autotuning=disabled netsh int tcp set heuristics disabled

Check the path to a webserver running on port 80 [root@s15809293 ~]# traceroute -T -p 80 www.regelleistung.net traceroute to www.regelleistung.net (91.192.14.79), 30 hops max, 60 byte packets 1 172.29.173.186 (172.29.173.186) 0.046 ms 0.040 ms 0.021 ms 2 vl-1995.gw-distp-a.bap.rhr.de.oneandone.net (195.20.247.34) 0.406 ms 0.518 ms 0.622 ms 3 ae-0-0.bb-a.bap.rhr.de.oneandone.net (212.227.121.164) 0.279 ms 0.265 ms 0.245 ms 4 ae-2-0.bb-a.tp.kae.de.oneandone.net (212.227.120.44) 0.854 ms 0.856 ms 0.821 ms 5 xe-1-0-3.bb-a.fra3.fra.de.oneandone.net (212.227.120.182) 3.049 ms 3.090 ms 3. [Read More]