The UO offers both wireless and wired access to the internet. The wireless network you use will depend on your affiliation. UO students, staff, and faculty can use uowireless or UO Secure. Guests to campus can use UO Guest or, if they're from an eduroam-participating institution, they can use eduroam.
Network connectivity problems can be the result of a variety of issues. This article goes through potential issues that could cause connectivity problems, including DHCP settings, proxy settings, and device drivers.