the adsl-setup script use sed for to elaborate text line insert by user. & is interpreted by the script and it fails. Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 51480 [details, diff] this is a patch for adsl-setup in rp-pppo 3.5-r7
fixed in r8. You've made a mistake at the last sed. It supposed to have & as separator because some ISPs have / in usernames. I've modified adsl-setup to search for an unused (as in not found in $U) separator. tx for the contribution