Power outage roasted router--new router causing access problem with NAS

[SmallTownUSA]

Morning All,
We had multiple power outages yesterday and they roasted my Linksys MX5300 mesh router. My Linksys set behind my service provider's router/modem (it was in bridge mode) so I removed my Linksys and began setting up my network with the ISP's router-modem (it is also a mesh router). I switched it from bridge to router mode.
Since my NASs have fixed IP addresses from the old router that are different from the new router, I can not access them. Synology Assistant can't see them either. Is there a "back door" I can use to gain access?
TKx,
Harold

 

[Telos]

Since my NASs have fixed IP addresses from the old router that are different from the new router, I can not access them. Synology Assistant can't see them either. Is there a "back door" I can use to gain access?

If you set those IPs on the NAS, instead of reserving them through your router, you'll need to reset (mode 1) the NAS.

 

[Coop777]

or, if you are able to configure the internal subnet, set it on your ISP router/modem to what it was on your Linksys.