I had 3 routers connected with one layer 2 switch in same vlan. Each router is configured with the loopback addresses like 18.104.22.168, 22.214.171.124 and 126.96.36.199. so as per the DR and BDR selectiong 188.8.131.52 should be the DR and 184.108.40.206 should be the BDR. but when i issue the show ip ospf neighbor command then its indicating the 220.127.116.11 as DR and 18.104.22.168 as BDR and all the router had same priority field.
Once the election is done and DR and BDR already elected the only option available to other routers to become DR/BDR is when existing DR/BDR go down.
So in your situation afaik the only option is to reload the router with having adress 22.214.171.124 and 126.96.36.199 and then 188.8.131.52 router will take the role of DR.
NOTE: If this is live network do not follow my suggestion of reload without arranging downtime or as per your company network requirements.
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