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We follow up on the surprising recent announcement by Vernstrom et al. (2021)of the detection of the synchrotron cosmic web. We attempt to reproduce theirdetection with new observations with the Phase II, extended configuration ofthe Murchison Widefield Array at \SI{118.5}{\mega \hertz}. We reproduce theirdetection methodology by stacking pairs of nearby luminous red galaxies (LRGs)-- used as tracers for clusters and galaxy groups -- contained in our lowfrequency radio observations. We show that our observations are significantlymore sensitive than those used in Vernstrom et al., and that our angularsensitivity is sufficient. And yet, we make no statistically significantdetection of excess radio emission along the bridge spanning the LRG pairs.This non-detection is true both for the original LRG pair catalogue as used inVernstrom et al., as well as for other larger catalogues with modifiedselection criteria. Finally, we return to the original data sets used inVernstrom et al., and find that whilst we clearly reproduce the excess X-rayemission from ROSAT, we are not able to reproduce any kind of broad andextended excess intercluster filamentary emission using the original 118.5 MHzMWA survey data. In the interests of understanding this result, as part of thispaper we release images of the 14 fields used in this study, the final stackedimages, as well as key components of our stacking and modelling code.

Searching for the Synchrotron Cosmic Web Again: A replication attempt