need help mga tol,

i need some advice to the fellow members in this forum..

I have a connection which it is almost 3 years now and it is a Legacy connection. Which means na stable po cya. And also had a router.
The problems is that, na nagpakabit po kami ng bagong connection and it was a PPoE type of connection, it was different from the old type of DSL, co'z wala na po cya Phone slot dun sa splitter nya, so it means na dsl or data na lng po ang nakalagay sa box. I was asking if ok lng po ba na same number ug phone? It happens kasi na pareho po ung username nya pero magkakaiba sa password. I just wondering na mag-conflict po dun sa kanilang system di ba?

Some reasons are:
1. I try to stand alone po sa pc and it works so fine, browsing on the webpages and pinging like
"ping 192.168.1.1" <-- are ok. and also in the web like;

"ping yahoo.com" <-- it responds normal, hindi nga nag "request time out".

2. So, I try na to put it in the switch para ma e network ko na sa mga PC, it happens like this;

*when i try to put on it, hindi kasi cya makapagbrowse sa yahoo or any webpages.

*i try to ping dun sa modem tsaka sa webpages nya baka may problema sa network ko, but same po sa "no. 1" still fine wala "request time out".

3. The big question po is that " i had 3 switches, 2Cnet, and 1 lynksys swtch".
i try to connect in the lynksys meron cyang internet pero ung dalawang switch ay wala and still may LAN po cya sa ibang PC,at nakapag ping po cya so there is no problem in my network...?

So i am asking po talaga tama po ba ako nag nagconflict po ung phone nila? dun sa system.

Please reply "ASAP", thx a lot...