Is it worth reinstalling from scratch

[walkerx]

So we had some internet issues recently where a fault on landline was causing my g.fast connection to drop. the isp required me to put on their own router for testing purposes to ensure it was not my router (opnsense on qotum pc) causing the problem, even though I stated it was the DSL light on the g.fast modem itself that was going off.

While performing the testing we had tried different routers (opnsense, fritzbox, deco m5 and Asus Zenwifi XT8) - one of the things we noticed was that when the connection dropped all the routers except the opnsense router were able to function correctly with DHCPv6 and routing was immediate.

The only way we got routing working for IPv6 on opnsense was to switch to static ipv6 instead of tracking wan with dhcpv6 as otherwise we constantly had to restart routing after the drops. there was also occasions where we constantly had to restart radvd.

I'm in two minds on whether to return back to opnsense in case we start having similar issues with routing, especially as the Asus Zenwifi XT8 is performing well. If we do decide would it be best just to reinstall from scratch the latest version (was previously updated from early version and had had many configuration changes along the way) and import any settings, or would it be best to also do them from scratch

[axsdenied]

Doubtful that you would sense any difference from re-installing.  The only potential side effect would be resetting configs you've changed.