Thread: Ubuntu 11.04 Network Manager sharing issue (Drops connection)

linux 2.6.38-8-server #42-ubuntu smp mon apr 11 03:49:04 utc 2011 x86_64 x86_64 x86_64 gnu/linux

have 2 network cards, alfa awus036h (rtl8187 drivers) picking qwest router signal uses 24dbi dish pick 200ft away (sisters house). use intel 82541 pl gigabit ethernet controller share connection wireless router behaves switch rest of house. theres on board nic isn't of use assume not interfering. ubuntu box's intel nic distributes ip's within house within ip range 10.42.43.* while range @ sisters house 192.168.0.*. ip of ubuntu box within 192.168.0.* range.

problem arises when seems under heavy load, either playing online game streaming netflix. lose connection , wireshark shows timing out, if ubuntu box stops responding computers on network requests data. still connected wireless router @ sisters house reason unable communicate router typing in address 192.168.0.1. although says still have strong wireless connection router. have fix restarting ubuntu box , trying again, seems work short while , have repeat restart fix issue. tried doing google search hard phrase question properly, if has tips or ideas in right direction solve issue im ears.

looking this.

update: wireshark dump shows following:

[tcp retransmission] [tcp segment of reassembled pdu]
[tcp dup ack 6041#1] 53825 > http [ack] seq=948 ack=1581664 win=65340 len=0 sle=1571500 sre=1572952 sle=1599088 sre=1601992 sle=1594732 sre=1597636 sle=1591828 sre=1593280

repeats on , on when streaming connection. on internal network ( eth1 10.42.43.*) opposed sisters external network (eth0 192.168.0.*)

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