The Obi200 + Google Voice worked fine with my with my old TP-Link WR941ND router. But to my surprise I just could not get it to work properly with the Tenda AC18 AC1900 router I bought, so I am returning the Tenda despite its impressive, consistent 5g performance (especially for a product I bought on one-day sale for $50).
Fyi, the the problem was that incoming calls would often not ring the Obi; the caller would hear ringing tomes, and then my Google Voice greeting. In testing, I could always fix the problem temporarily by either power-cycling the Obi or making an outbound call with it. But then the issue would promptly return, usually within 2-6 hours. In all other respects the Obi worked fine with the Tenda. Since I have switched back to the old TP-Link, there have been zero issues.
While I provided that background, my purpose in posting here isn't to seek advice on how to make it work. I spent 2 days troubleshooting, and I am convinced the problem is not resolvable -- at least with the unit I received (although I do wish I had checked to see if the affected calls were logged in the Obi web interface). Instead, as the Subject says, I just want to know if anyone is successfully using the Obi200+Google Voice with the Tenda AC18. If so, perhaps there is some defect in the Tenda unit I received, and I should try another unit of the same router. Conversely, if someone else had the same problem with that router, I'd appreciate hearing the confirmation. Thanks.