HomeNetworking, community based networking help

The original post: /r/homenetworking by /u/abdl-padded-gaymer on 2025-04-15 08:36:16.

I have a nokia beacon g6 issued by my isp that i am having issues with. I use a private dns which is setup manually on all my devices (desktop/laptops), services were great until 9 days later and those devices have no internet until i change dns. ISP cable modem works with dns without issue but add nokia into mix and net is blocked. ISP says it a me issue but all signs point to nokia being issue and i can’t find number to nokia for help. ISP sent out new nokia beacon g6 to see if issue still ongoing. I cant ping dns address in cmd and within wifi router but i can ping when device is directly connected to modem (sercomm dm100). Not sure if this a one time issue or if other people with nokia beacon g6 have had issues too. DM welcome regarding this.