<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2004-09-29</periodOfReport>

    <dateOfOriginalSubmission>2004-09-27</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001020646</issuerCik>
        <issuerName>ERF Wireless, Inc.</issuerName>
        <issuerTradingSymbol>ERFW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001259387</rptOwnerCik>
            <rptOwnerName>SMITH R GREG</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2911 SOUTH SHORE BLVD., SUITE 100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LEAGUE CITY</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77573</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO &amp; CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>ERF Wireless Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2667</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series A Convertible Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2004-08-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2009-07-29</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1192055</value>
                    <footnoteId id="F2"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Options (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <value>2009-07-29</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1000000</value>
                    <footnoteId id="F3"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On 8/1/04, the board of directors granted R. Greg Smith options to purchase up to 1,000,000 shares of common stock at an exercise price equal to 115% of the lowest 5-day average closing price during the 12 months preceding the vesting event.  The options vest based upon the cumulative revenue of the company after 8/1/04.  100,000 shares vest when cumulative revenue exceeds $1,000,000; 150,000 shares vest when cumulative revenue exceeds $5,000,000; 250,000 shares vest when cumulative revenue exceeds $10,000,000; and 500,000 shares vest when cumulative revenue exceeds $25,000,000.</footnote>
        <footnote id="F2">Under the Amended and Restated Employment Agreement with ERF Wireless, Inc., Mr. Smith is entitled to receive 63,827 shares of Series A Convertible Preferred Stock at $0.50 per share.  The preferred stock is convertible at holders' option at one preferred share for 18.676347 shares common.  Mr. Smith is therefore entitled to receive 1,192,055 shares of common stock following the conversion of the Series A Preferred Stock.</footnote>
        <footnote id="F3">n 8/1/04, the board of directors granted R. Greg Smith options to purchase up to 1,000,000 shares of common stock at an exercise price equal to 115% of the lowest 5-day average closing price during the 12 months preceding the vesting event.  The options vest based upon the cumulative revenue of the company after 8/1/04.  100,000 shares vest when cumulative revenue exceeds $1,000,000; 150,000 shares vest when cumulative revenue exceeds $5,000,000; 250,000 shares vest when cumulative revenue exceeds $10,000,000; and 500,000 shares vest when cumulative revenue exceeds $25,000,000.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>R. Greg Smith</signatureName>
        <signatureDate>2005-07-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
