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I encountered an issue with a working mobility tunnel went down for unknown reason and could not get it back up. The foreign WLC which is 9800 L F with 17.12.6a code version and an anchor WLC 9880 running 17.12.4 code version sitting behind a Palo Al...
Following your advice, I observed that the foreign controller did not initiate any contact and that the majority of the statistics were zero. I therefore disabled all anchored WLANs and the related policies. After removing and re-creating the mobilit...