diff --git a/src/web/controls/custom-deploy-ctrl.js b/src/web/controls/custom-deploy-ctrl.js
index 3acaed6..b05e0be 100644
--- a/src/web/controls/custom-deploy-ctrl.js
+++ b/src/web/controls/custom-deploy-ctrl.js
@@ -90,7 +90,7 @@ export const customDeployCtrl = (st, {wallet = [], node, onSendDeploy, onPropose
   }
 
   // Control state
-  const {selRevAddr, code, phloLimit, status, dataError, proposeStatus, proposeError}
+  const {selRevAddr, code, phloLimit, status, dataError, proposeStatus, proposeError, fetching}
     = initSelected(st.view({}), wallet)
 
   const tokenName        = node.tokenName
@@ -99,7 +99,7 @@ export const customDeployCtrl = (st, {wallet = [], node, onSendDeploy, onPropose
   const labelPhloLimit   = `Phlo limit (in tiny ${tokenName} x10^${node.tokenDecimal})`
   const isWalletEmpty    = R.isNil(wallet) || R.isEmpty(wallet)
   const showPropose      = node.network === 'localnet'
-  const canDeploy        = (code || '').trim() !== '' && !!selRevAddr
+  const canDeploy        = (code || '').trim() !== '' && !!selRevAddr  && !fetching
   const phloLimitPreview = showTokenDecimal(phloLimit, node.tokenDecimal)
 
   return m('.ctrl.custom-deploy-ctrl',
diff --git a/src/web/controls/main-ctrl.js b/src/web/controls/main-ctrl.js
index c0a2daa..f11709c 100644
--- a/src/web/controls/main-ctrl.js
+++ b/src/web/controls/main-ctrl.js
@@ -13,12 +13,16 @@ import { transferCtrl } from './transfer-ctrl'
 import { customDeployCtrl } from './custom-deploy-ctrl'
 import { newRevAddress } from '@tgrospic/rnode-grpc-js'
 
+import { makeRNodeWeb } from '../../rnode-web'
+
 /*
   This will display the test page to select local, testnet, and mainnet validators
   and make REV transfers and check balance.
 */
 
+const {rnodeHttp} = makeRNodeWeb({fetch})
 const repoUrl = 'https://github.com/tgrospic/rnode-client-js'
+const randomOffset = Math.floor(Math.random() * (2 - 1 + 1)) + 1 //Random number between 1 and 2, for load balancing
 
 const mainCtrl = (st, effects) => {
   const { appCheckBalance, appTransfer, appSendDeploy, appPropose, log, warn } = effects
@@ -47,13 +51,14 @@ const mainCtrl = (st, effects) => {
       .set(account)
 
   // State lenses for each control
-  const selSt          = st.o('sel')
-  const addressSt      = st.o('address')
-  const balanceSt      = st.o('balance')
-  const transferSt     = st.o('transfer')
-  const customDeploySt = st.o('customDeploy')
-
-  const {nets, netsDev, netsTestMain, sel, wallet, devMode} = st.view()
+  const selSt               = st.o('sel')
+  const addressSt           = st.o('address')
+  const balanceSt            = st.o('balance')
+  const transferSt           = st.o('transfer')
+  const customDeploySt       = st.o('customDeploy')
+  const autoSelectIntervalSt = st.o('autoSelectInterval')
+
+  const {nets, netsDev, netsTestMain, sel, wallet, devMode, autoSelectDisabled} = st.view()
   const valNodeUrls  = getNodeUrls(sel.valNode)
   const readNodeUrls = getNodeUrls(sel.readNode)
 
@@ -68,6 +73,42 @@ const mainCtrl = (st, effects) => {
     st.update(s => ({...s, nets, sel, devMode: enabled}))
   }
 
+  const FetchNextValidator = async () => {
+    const {autoSelectDisabled} = st.view()
+    if (autoSelectDisabled) {
+      //Disables transfer/deploy buttons once during toggle
+      transferSt.update(s => ({...s, fetching: true}))
+      customDeploySt.update(s => ({...s, fetching: true}))
+    }
+    const { nextToPropose } = await rnodeHttp("https://status.rchain.coop", 'validators')
+
+    const net  = nets[1] //Select Mainnet
+    
+    const next = net.hosts.filter(obj => {
+      return obj.domain === nextToPropose.host
+    })[0];
+    const nextId = net.hosts.indexOf(next);
+
+    const sel  = {valNode: net.hosts[(nextId + randomOffset) % net.hosts.length], readNode: net.readOnlys[0]}
+
+    st.update(s => ({...s, sel}))
+    transferSt.update(s => ({...s, fetching: false}))
+    customDeploySt.update(s => ({...s, fetching: false}))
+  }
+
+  const onAutoSelectToggle = ({disabled}) => {
+    if (!disabled) {
+      const interval = setInterval(FetchNextValidator, 5 * 1000)
+      autoSelectIntervalSt.set({interval: interval})
+      FetchNextValidator() //Trigger immediately
+    } else {
+      const {interval} = autoSelectIntervalSt.view({})
+      clearInterval(interval)
+    }
+
+    st.update(s => ({...s, autoSelectDisabled: disabled}))
+  }
+
   // TEMP: Hard Fork 1 info
   const startMs = new Date('2021-07-18 15:00').getTime()
   const endMs   = new Date('2021-07-25 01:00').getTime()
@@ -94,7 +135,7 @@ const mainCtrl = (st, effects) => {
 
     // Selector control
     m('hr'),
-    selectorCtrl(selSt, {nets, onDevMode}),
+    selectorCtrl(selSt, {nets, onDevMode, onAutoSelectToggle}),
 
     // REV wallet control
     addressCtrl(addressSt, {wallet, node: valNodeUrls, onAddAccount: onSaveAccount}),
@@ -128,6 +169,7 @@ const prepareNets = nets =>
   }))
 
 const devMode      = false
+const autoSelectDisabled = true
 const netsDev      = prepareNets([localNet])
 const netsTestMain = prepareNets([testNet, mainNet])
 const nets         = devMode ? netsDev : netsTestMain
@@ -146,6 +188,7 @@ const initialState = {
   wallet: [], // [{name: 'My REV account', ...newRevAddress()}],
   // Dev mode  (show local networks)
   devMode,
+  autoSelectDisabled: autoSelectDisabled
 }
 
 export const startApp = (element, effects) => {
diff --git a/src/web/controls/selector-ctrl.js b/src/web/controls/selector-ctrl.js
index 15123b7..bd8cf63 100644
--- a/src/web/controls/selector-ctrl.js
+++ b/src/web/controls/selector-ctrl.js
@@ -3,7 +3,7 @@ import * as R from 'ramda'
 import m from 'mithril'
 import { getNodeUrls } from '../../rchain-networks'
 
-export const selectorCtrl = (st, {nets, onDevMode}) => {
+export const selectorCtrl = (st, {nets, onDevMode, onAutoSelectToggle}) => {
   const findValidatorByIndex = index =>
     nets.flatMap(({hosts}) => hosts)[index]
 
@@ -13,6 +13,8 @@ export const selectorCtrl = (st, {nets, onDevMode}) => {
   const onSelIdx = ev => {
     const sel  = findValidatorByIndex(ev.target.selectedIndex)
     const read = sel.name === valNode.name ? readNode : findReadOnlyByIndex(0, sel.name)
+    const isMainnet = sel.name === 'mainnet'
+    sel.name !== valNode.name ? onAutoSelectToggle({disabled: !isMainnet}) : undefined
     st.set({valNode: sel, readNode: read})
   }
 
@@ -26,6 +28,11 @@ export const selectorCtrl = (st, {nets, onDevMode}) => {
     onDevMode({enabled: checked})
   }
 
+  const onAutoSelectInput = ev => {
+    const checked = ev.target?.checked || false
+    onAutoSelectToggle({disabled: checked})
+  }
+
   const getDdlText = ({name, domain, grpc, https, http}) => {
     const httpInfo = !!https ? `:${https}` : !!http ? `:${http}` : ' '
     const isLocal  = name === 'localnet'
@@ -36,7 +43,7 @@ export const selectorCtrl = (st, {nets, onDevMode}) => {
     R.eqBy(({domain, gprc, https, http}) => ({domain, gprc, https, http}), v1, v2)
 
   // Control state
-  const {valNode, readNode, devMode} = st.view({})
+  const {valNode, readNode, devMode, autoSelectDisabled} = st.view({})
 
   const isLocal   = valNode.name === 'localnet'
   const isTestnet = valNode.name === 'testnet'
@@ -45,6 +52,7 @@ export const selectorCtrl = (st, {nets, onDevMode}) => {
   const readUrls  = getNodeUrls(readNode)
   // Dev mode tooltip text
   const devModeText = `Development mode for locally accessible nodes`
+  const autoSelectText = `Disable automatic selection of validator`
 
   return m('.ctrl.selector-ctrl',
     // Validator selector
@@ -66,6 +74,11 @@ export const selectorCtrl = (st, {nets, onDevMode}) => {
       ),
     ),
 
+    isMainnet && [
+      m('label', {title: autoSelectText},
+      m('input[type=checkbox]', {checked: autoSelectDisabled, oninput: onAutoSelectInput}), 'Disable Auto Select')
+    ],
+
     // Validator info
     m(''),
     m('span', 'Direct links'),
diff --git a/src/web/controls/transfer-ctrl.js b/src/web/controls/transfer-ctrl.js
index c76d4b3..d8d4b16 100644
--- a/src/web/controls/transfer-ctrl.js
+++ b/src/web/controls/transfer-ctrl.js
@@ -47,14 +47,14 @@ export const transferCtrl = (st, {wallet, node, onTransfer, warn}) => {
   }
 
   // Control state
-  const {account, toAccount, amount, status, error} = initSelected(st.view({}), wallet)
+  const {account, toAccount, amount, status, error, fetching} = initSelected(st.view({}), wallet)
 
   const {tokenName, tokenDecimal} = node
   const labelSource      = `Source ${tokenName} address`
   const labelDestination = `Destination ${tokenName} address`
   const labelAmount      = `Amount (in tiny ${tokenName} x10^${tokenDecimal})`
   const isWalletEmpty    = R.isNil(wallet) || R.isEmpty(wallet)
-  const canTransfer      = account && toAccount && amount && (account || ethDetected)
+  const canTransfer      = account && toAccount && amount && (account || ethDetected) && !fetching
   const amountPreview    = showTokenDecimal(amount, tokenDecimal)
 
   return m('.ctrl.transfer-ctrl',