Problems after DPC3939B firmware upgrade
We're a church w/a 100/20 plan and we internally run on IPv4 w/a mix of DHCP and static IPv4 addresses. For several months, we had absolutely no issues with the Biz Internet service. Two weeks ago Friday, our modem was updated to
DOCSIS Software Version: dpc3939b-v303r2042151-140714a-CMCST
Software Image Name: dpc3939b-v303r2042151-140714a-CMCST.p7b
Advanced Services: USG-Adv-1.0
and multiple issues ensued:
1. IPv6 DHCP was auto-enabled (was disabled previously) and this broken most of our clients. Fortunately, this was easily fixable.
2. The modem periodically times out reaching external destinations such as google and had to be rebooted/power cycled.
#2 happened twice while we were streaming our services (two consecutive weeks) so its a really big problem that we've got to get a solution for.
I did notice that running a test from speedtest.net seemed to bring the modem to life twice while in this state (once was temporary and the modem had to be power cycled).
We've done no other software updates in this time frame. The modem update is the only variable.
Is there any way to fall back to the previous release?