It might be good when windows update doesn't work.
1. run enable command.
ProxySG> enable
Enable Password:
2. configure terminal
ProxySG#configure terminal
3.run this command , tcp-ip pmtu-discovery enable
#(config)tcp-ip pmtu-discovery enable
when you see ok , all done!!
check if it's done.
3. run this command , show tcp-ip
Path MTU Discovery: enabled , this shows it's ok.
Blue Coat SG200 Series #show tcp-ip
RFC-1323 support: enabled
TCP Newreno support: disabled
IP forwarding: disabled
ICMP bcast echo response: disabled
ICMP timestamp echo response: disabled
Path MTU Discovery: enabled
PMTU expiration period: 600 seconds
PMTU probe interval: 120 seconds
TCP 2MSL timeout: 120 seconds
TCP window size: 65535 bytes
Blue Coat SG200 Series #
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