Hello, Last week we had a strange problem, where dialup connections that were working fine for years on our TC1000 servers suddenly had problems getting to certain web pages (EBay, banking sites, MSN) and logging on to the MSN instant messenger network. This only seemed to affect Windows XP/2000 and OS X users, but the fix I implemented to solve the problem for those users (force the MTU to 576 in both the RADIUS server and the terminal servers with SET PPP SYSTEM_MTU 576) is now causing problems for *some* (not all) Win98, old Mac (OS 8) and Playstation Online users. Does anyone know what could have caused this problem to suddenly crop up, or have suggestions as to a better fix, that won't break dialup for the rest of my users? -- Charles Tassell <ctassell@isn.net> Island Services Network
ISN Support Staff wrote:
Hello,
Last week we had a strange problem, where dialup connections that were working fine for years on our TC1000 servers suddenly had problems getting to certain web pages (EBay, banking sites, MSN) and logging on to the MSN instant messenger network. This only seemed to affect Windows XP/2000 and OS X users, but the fix I implemented to solve the problem for those users (force the MTU to 576 in both the RADIUS server and the terminal servers with SET PPP SYSTEM_MTU 576) is now causing problems for *some* (not all) Win98, old Mac (OS 8) and Playstation Online users.
Does anyone know what could have caused this problem to suddenly crop up, or have suggestions as to a better fix, that won't break dialup for the rest of my users?
Make sure you are not assigning any MTU and theat the MTU on the ARC is set to default. -- Lewis Bergman Texas Communications 4309 Maple St. Abilene, TX 79602-8044 Off. 325-691-3301 Cell 325-439-0533 fax 325-695-6841
How do you unset the SET PPP SYSTEM_MTU command? It doesn't seem to be an option for either DISABLE PPP or UNASSIGN, and you can just set it to blank or 0. On Fri, 2006-03-31 at 11:24 -0600, Lewis Bergman wrote:
[snip] Make sure you are not assigning any MTU and theat the MTU on the ARC is set to default.
ISN Support Staff wrote:
How do you unset the SET PPP SYSTEM_MTU command? It doesn't seem to be an option for either DISABLE PPP or UNASSIGN, and you can just set it to blank or 0.
The default is 1514 so SET PPP SYSTEM_MTU 1514 should work -- Lewis Bergman Texas Communications 4309 Maple St. Abilene, TX 79602-8044 Off. 325-691-3301 Cell 325-439-0533 fax 325-695-6841
ISN Support Staff wrote:
Hello,
Last week we had a strange problem, where dialup connections that were working fine for years on our TC1000 servers suddenly had problems getting to certain web pages (EBay, banking sites, MSN) and logging on to the MSN instant messenger network. This only seemed to affect Windows XP/2000 and OS X users, but the fix I implemented to solve the problem for those users (force the MTU to 576 in both the RADIUS server and the terminal servers with SET PPP SYSTEM_MTU 576) is now causing problems for *some* (not all) Win98, old Mac (OS 8) and Playstation Online users.
Does anyone know what could have caused this problem to suddenly crop up, or have suggestions as to a better fix, that won't break dialup for the rest of my users?
We had a similar problem several years ago. Set the MTU on the radius server to 1500. The MTU was getting established at I think the 576 figure or some similar number by the radius server for the dialup session and people could suddenly not get to some web sites. Oddly enough the only ones not affected were Win 98 users. Mike
participants (3)
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ISN Support Staff -
Lewis Bergman -
Michael Dappert