Dear Ahmed,
1. If you have a driver for Speed touch 500 download in your PC and enter in its configuration you can IP setting from there.
2. Second enquiry not clear completely but as I understood you want combine more PCs in one link so you can use broadband router (e.g. Speedtouch 510, Speedtouch 580)
For more information visit
https://www.speedtouch.co.uk/faqs.as...Pos=5.#routers In Router and wired home networking.
Yours truly,
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