Recently Tiscali upgraded their service and changed from aa5snap to aal5mux. there was no notification of this and I had to figure this out when things fell apart. see:
About 5 days later, problems started again.
While surfing, I only get partial pages downloaded before page freezes. Speeds on downloads at about 4Kbps!. Funny thing though, is that Google search is same speed as always.
Again tiscali insists nothing has changed. I know for CERTAIN I did not change my config.
I plugged in a USRobotics router and another Cisco 827 and I encounter the exact same problems so it is not unique to my hardware. With tiscali supplied speedtouch modem, things are full speed.
speedtouch modem default mtu is same as cisco default - 1500. Anyhow, I played around with mtu settings. but made no difference, also pppoa which I am on, is not susceptible to mtu it seems. However, I do not want to rule this out.
do I need to set max receive unit on cisco to 1500? if so how? it is set to 1500 on speedtouch modem.
Can somebody please advise on where I would start to debug this problem.
Kind regards. attached is config
Current configuration : 911 bytes
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
ip name-server 184.108.40.206
ip address 10.254.0.100 255.255.255.0
ip nat inside
hold-queue 100 out
no ip address
no atm ilmi-keepalive
encapsulation aal5mux ppp dialer
dialer pool-member 1
dsl operating-mode auto
ip address negotiated
ip nat outside
dialer pool 1
ppp authentication chap callin
ppp chap hostname [email protected]
ppp chap password 0 123456789abc
ip nat inside source list 1 interface Dialer0 overload
ip route 0.0.0.0 0.0.0.0 Dialer0
no ip http server
access-list 1 permit 10.254.0.0 0.0.0.255
line con 0
line vty 0 4
scheduler max-task-time 5000